Port Numbers Reference

TCP/UDP — Port 66 was historically associated with Oracle SQL*NET, an early version of Oracle's proprietary network …

TCP/UDP — Port 118 was an early IANA assignment for generic SQL database services. Unused today as …

TCP/UDP — INGRES-NET Service. Used by the Ingres relational database management system for network communication between database …

TCP/UDP — Britton-Lee IDM. Protocol for the Britton-Lee Intelligent Database Machine, an early hardware database accelerator.

TCP/UDP — SQL-NET. An Oracle protocol for connecting SQL clients to Oracle databases over a network. Predates …

TCP/UDP — Port 156 is an IANA-registered SQL Service port, an early generic placeholder. Unused in contemporary …

TCP/UDP — Unify Database. Protocol for the Unify relational database management system for client-server communication.

TCP/UDP — Plus Five MUMPS. Network protocol for the MUMPS (Massachusetts General Hospital Utility Multi-Programming System) programming …

TCP — Port 210 is assigned to ANSI Z39.50, a client-server protocol for searching and retrieving information …

TCP/UDP — dBASE Unix. Protocol for the dBASE database system on Unix platforms, enabling client-server database access.

TCP/UDP — DDM-RDB (Distributed Data Management - Relational Database). IBM protocol for accessing relational databases across distributed …

TCP/UDP — DDM-SSL (Distributed Data Management over SSL). Secure variant of the IBM DDM protocol using SSL/TLS …

TCP/UDP — IAF Database. Information Access Framework database access protocol.

TCP/UDP — IBM DB2 Discovery Service. Used by IBM DB2 database for instance discovery and database cataloging.

TCP/UDP — CherryPick protocol. Used for selective data retrieval in distributed databases.

TCP/UDP — FileMaker Pro. Used by FileMaker for sharing databases and web publishing over HTTP.

TCP/UDP — RDA (Remote Database Access). ISO standard protocol for accessing remote databases.

TCP/UDP — RLZ DBase, a legacy database protocol assigned by IANA. Used in early enterprise database replication …

TCP/UDP — Borland DSJ. Protocol for Borland (now Embarcadero) DataStore Java application server.

TCP/UDP — mdbs_daemon, IANA-registered for the MDBS (Multi-Dimensional Bar System) daemon service. A legacy enterprise database access …

TCP/UDP — ICL Twobase 1. Protocol for ICL (International Computers Limited) Twobase database system.

TCP/UDP — ICL Twobase 2. Second port for the ICL Twobase database system communication.

TCP — Applix enterprise business intelligence software, later acquired by IBM and rebranded as IBM Cognos TM1 …

TCP — Microsoft SQL Server. The default port for Microsoft's relational database management system. Should never be …

UDP — Microsoft SQL Server Browser Service. Provides instance discovery and connection information for named SQL Server …

TCP — Oracle Database listener. The default port for Oracle Database TNS (Transparent Network Substrate) connections. Enterprise …

TCP — Port 1526 is an alternative listener port used by Oracle Database, alongside the primary port …

TCP — Port 2181 is the default client port for Apache ZooKeeper, a distributed coordination service. Applications …

TCP — Port 2379 is the client communication port for etcd, the distributed key-value store used by …

TCP — Port 2380 is used for etcd peer-to-peer communication between etcd cluster members. etcd nodes use …

TCP — Port 2399 is used by FileMaker Pro for network data sharing, allowing FileMaker clients to …

TCP — Port 2424 is the default binary protocol port for OrientDB, a multi-model NoSQL database supporting …

TCP — Port 2483 is used by Oracle Database for client connections using the native TCP protocol …

TCP — Port 2484 is used by Oracle Database for encrypted SSL/TLS client connections. This port provides …

TCP — Port 2638 is the default port for SAP SQL Anywhere (formerly Sybase SQL Anywhere) database …

TCP — Port 3050 is the default port for Firebird (formerly InterBase), an open-source relational database management …

TCP — MySQL and MariaDB database server. The default port for the world's most popular open-source relational …

TCP — Port 4022 is used by Microsoft SQL Server for database mirroring endpoints and Service Broker …

TCP — PostgreSQL database server. The default port for the advanced open-source relational database known for reliability, …

TCP — Port 5984 is the default HTTP API port for Apache CouchDB, a document-oriented NoSQL database …

TCP — Redis in-memory data store. A high-performance key-value database used for caching, session storage, message queues, …

TCP — Port 7000 is used by Apache Cassandra for internode cluster communication (non-SSL). Cassandra nodes in …

TCP — Port 7199 is used by Apache Cassandra for JMX (Java Management Extensions) monitoring and management. …

TCP — Port 7474 is the default HTTP port for Neo4j, the world's most popular graph database. …

TCP — Port 8086 is the default HTTP API port for InfluxDB, a popular open-source time series …

TCP — Port 8088 is used by Riak, a distributed NoSQL database, for its HTTP API, and …

TCP — Port 8091 is the primary administrative web console and REST API port for Couchbase Server, …

TCP — Port 8983 is the default HTTP port for Apache Solr, an open-source enterprise search platform …

TCP — Port 9042 is the native CQL (Cassandra Query Language) port for Apache Cassandra, used by …

TCP — Elasticsearch REST API. The HTTP endpoint for the distributed search and analytics engine used for …

TCP — Elasticsearch inter-node transport protocol. Used for communication between nodes in an Elasticsearch cluster for data …

TCP/UDP — Memcached distributed memory caching system. High-performance key-value cache used to speed up web applications by …

TCP — Default port for CockroachDB, a distributed SQL database designed for cloud-native deployments. Used for both …

TCP — MongoDB NoSQL database server. The default port for the document-oriented database known for flexible schemas …

TCP — Default port for MongoDB shard server processes (mongod in a sharded cluster). Used for internal …

TCP — Default port for MongoDB config server processes in a sharded cluster, which store cluster metadata …

TCP — Previously used by MongoDB for its built-in HTTP status interface and REST API, deprecated in …

TCP — Default port for IBM DB2 database server client connections. Also used by SAP HANA and …

TCP — Used as an alternate or development port for PostgreSQL databases in some configurations, particularly Docker-based …

TCP/UDP — Originally assigned as the Host Name Server protocol on ARPANET, port 42 was later repurposed …

TCP/UDP — Domain Name System. Translates human-readable domain names (e.g., example.com) into IP addresses. TCP is used …

TCP — Port 101 was the original ARPANET host name server, providing hostname-to-address lookups via the Network …

TCP/UDP — AppleTalk Name Binding Protocol. Resolves AppleTalk names to network addresses, functioning as the name service …

TCP/UDP — AppleTalk Zone Information Service. Provides zone information for AppleTalk internetworks, mapping zones to network ranges.

TCP/UDP — SDNSKMP. Protocol for secure DNS key management.

TCP/UDP — GINAD protocol. Global Internet Name Administration Daemon.

TCP — DNS over TLS (DoT). Encrypts DNS queries between client and recursive resolver using TLS, preventing …

TCP — BIND Remote Name Daemon Control (RNDC), used to remotely control the BIND named DNS server …

TCP/UDP — Port 1512 is used by Windows Internet Name Service (WINS), Microsoft's implementation of NetBIOS Name …

TCP — Port 2053 is used by Cloudflare and other providers as an alternative port for DNS …

UDP — Port 5353 is used by mDNS (Multicast DNS), which enables zero-configuration DNS name resolution on …

TCP/UDP — Port 5355 is used by LLMNR (Link-Local Multicast Name Resolution), a Microsoft protocol that allows …

TCP/UDP — Reserved for any private mail system. IANA designates this port for custom or proprietary mail …

TCP — Simple Mail Transfer Protocol. The standard protocol for sending email between mail servers. Often targeted …

TCP/UDP — Port 26 is unassigned by IANA but is commonly used as an alternate SMTP port …

TCP/UDP — Remote Mail Checking Protocol. A legacy protocol that allows remote verification of mail addresses without …

TCP/UDP — XNS Mail. Electronic mail service within the Xerox Network Systems (XNS) protocol suite for sending …

TCP — POP2 (Post Office Protocol version 2) is the predecessor to POP3, defined in RFC 937. …

TCP — Post Office Protocol v3. Retrieves email from a mail server, typically downloading messages to the …

TCP — Internet Message Access Protocol. Retrieves and manages email on a mail server, keeping messages on …

TCP/UDP — PCMail Server was an early distributed mail architecture protocol defined in RFC 1056. Entirely obsolete.

TCP/UDP — MAILQ was an early protocol for querying the state of a mail server's outbound message …

TCP — QMTP (Quick Mail Transfer Protocol) is a replacement for SMTP designed for high-performance mail transfer …

TCP — Port 220 is assigned to IMAP3, an early version of the IMAP email retrieval protocol …

TCP/UDP — On-Demand Mail Relay. Allows intermittently connected mail servers to request delivery of queued email, defined …

TCP/UDP — List Processor (ListProc). Protocol for automated mailing list management including subscription handling and message distribution.

TCP/UDP — Interactive Mail Support Protocol. An extension to IMAP for managing personal mail configuration such as …

TCP — SMTP over SSL/TLS (implicit TLS). Provides encrypted email submission from clients to mail servers. Reintroduced …

TCP/UDP — Hybrid POP. A hybrid Post Office Protocol variant combining POP and IMAP features.

TCP/UDP — Mailbox LH (Landherr). Protocol for the Mailbox-LH mail system.

TCP/UDP — OpenMail. Protocol for HP OpenMail email and messaging system.

TCP/UDP — Port 585 was previously assigned to IMAP4+SSL but has been de-assigned. IMAP over TLS uses …

TCP — Mail Message Submission (MSA). The recommended port for email clients to submit outgoing mail using …

TCP/UDP — Eudora Set. Protocol for Qualcomm Eudora email client configuration and settings synchronization.

TCP/UDP — Quick Mail Queuing Protocol. A fast protocol for transferring email messages between mail servers, used …

TCP/UDP — ESRO-EMSDP. Efficient Short Remote Operations Efficient Mail Submission and Delivery Protocol for wireless messaging.

TCP — Application Configuration Access Protocol (ACAP), defined in RFC 2244, designed for server-side storage of email …

TCP — Microsoft Exchange Server Link State routing protocol, used internally by Exchange 2000/2003 servers for routing …

TCP — SpamAssassin spamd daemon, the server process of the widely-used Apache SpamAssassin open-source email spam filter. …

TCP — Microsoft Exchange MAPI over HTTP, introduced in Exchange 2013 SP1 as a replacement for Outlook …

TCP — IMAP over SSL/TLS. Encrypted version of IMAP for secure email access from multiple devices. Uses …

TCP — POP3 over SSL/TLS. Encrypted version of POP3 for secure email retrieval. Uses implicit TLS to …

TCP — Port 1352 is used by IBM Lotus Notes and Domino server for client-server communication. It …

TCP — Port 2095 provides access to cPanel's webmail interface (RoundCube, Horde, SquirrelMail) over HTTP. Hosting users …

TCP — Port 2096 provides secure HTTPS access to cPanel's webmail interface, encrypting email credentials and message …

TCP — Port 2525 is a commonly used alternate SMTP port for outbound email submission, particularly useful …

TCP — Port 7071 is the default HTTPS port for the Zimbra Collaboration Suite administration console. System …

TCP — FTP data transfer channel. Used in active mode FTP for the server to establish a …

TCP — FTP control channel. Handles authentication, directory listing commands, and file transfer negotiation. Sends usernames and …

TCP/UDP — Reserved by IANA for any private file service. Designated for custom or proprietary file transfer …

UDP — Trivial File Transfer Protocol. A simplified file transfer protocol with no authentication or encryption. Commonly …

TCP — Port 82 is registered with IANA as the XFER file transfer utility, an obscure early …

TCP/UDP — Swift Remote Virtual File Protocol. A protocol for virtual file system access across networked machines.

TCP — Port 115 is the Simple File Transfer Protocol (SFTP), defined in RFC 913. Not to …

TCP — UUCP Path Service provided routing information for the UUCP (Unix-to-Unix Copy Protocol) bang-path email and …

TCP — NetBIOS Session Service. Establishes sessions for file and printer sharing on legacy Windows networks (SMB …

TCP/UDP — BFTP (Background File Transfer Program) was designed for asynchronous, low-priority file transfers. Defined in RFC …

TCP/UDP — Queued File Transport. A protocol for reliable queued file transfer between systems with store-and-forward capability.

TCP/UDP — The Prospero Directory Service was a distributed filesystem and resource location protocol from the early …

TCP/UDP — Subnet Broadcast TFTP. A variant of TFTP that uses subnet broadcast addresses for distributing files …

TCP/UDP — Secure Electronic File Transfer Protocol. An encrypted version of the EFTP protocol for secure file …

TCP/UDP — FXP Communication. Protocol for FXP (File eXchange Protocol) server-to-server file transfers.

TCP/UDP — Fatmen Server. Protocol for the Fatmen file and data management service.

TCP/UDP — MFTP (Multicast File Transfer Protocol). Enables reliable file distribution to multiple recipients simultaneously using multicast.

TCP — Port 369 is assigned to rpc2portmap, used by Coda filesystem's RPC2 portmapper service. Limited to …

TCP/UDP — Port 371 is assigned to ClearCase, IBM Rational ClearCase's version control and software configuration management …

TCP — Port 411 is commonly associated with Direct Connect (DC++) Hub, a peer-to-peer file sharing network …

TCP — Server Message Block. Provides shared access to files, printers, and serial ports over a network. …

TCP/UDP — DDM-DFM (Distributed Data Management - Distributed File Management). IBM protocol for distributed file management across …

TCP/UDP — Simple Asynchronous File Transfer. Protocol for asynchronous file transfer allowing deferred delivery.

TCP — Port 497 is assigned to Retrospect backup software for network backup client-server communication. Exposure risks …

TCP/UDP — Port 524 is assigned to NCP (NetWare Core Protocol), Novell NetWare's primary protocol for file …

TCP — Port 540 is assigned to UUCP (Unix-to-Unix Copy Protocol), one of the earliest Unix networking …

TCP — Port 548 is assigned to AFP (Apple Filing Protocol), used by macOS for file sharing. …

TCP — Port 556 is assigned to Remotefs (rfs), an early Sun Microsystems alternative to NFS. Entirely …

TCP — Port 564 is associated with 9P (Plan 9 File Protocol), from Bell Labs Plan 9 …

TCP/UDP — FTP Software Agent System. Agent protocol for automated FTP operations.

TCP/UDP — Sender-Initiated/Unsolicited File Transfer. Protocol for pushing files to remote systems without prior request.

TCP — Used by Apple Xsan (formerly StorNext SAN) filesystem, a shared storage area network solution for …

TCP/UDP — Breeze Wireless NFS. Protocol enabling NFS file sharing over Breezecom wireless networks.

TCP/UDP — OBEX (OBject EXchange). Protocol for exchanging binary objects (files, contacts, calendar entries) between devices.

TCP/UDP — PFTP protocol. A variant file transfer protocol for peer-to-peer file sharing.

TCP/UDP — XFR protocol. A file transfer and exchange protocol.

TCP — Internet Small Computer System Interface (iSCSI), defined in RFC 7143, encapsulates SCSI storage commands over …

TCP — rsync file synchronization protocol. Efficiently transfers and synchronizes files between systems using delta encoding to …

TCP — Brocade Storage Management Initiative Specification (SMI-S) service, used by Brocade SAN switches to expose storage …

TCP — Brocade Storage Management Initiative Specification (SMI-S) over SSL/TLS, the encrypted variant of Brocade SAN management …

TCP — Lustre high-performance distributed filesystem, used in HPC supercomputing storage clusters. Dominant parallel filesystem in 7 …

TCP — FTP data channel over TLS/SSL (implicit). The encrypted version of the FTP data channel (port …

TCP — FTP control channel over TLS/SSL (implicit). The encrypted version of the FTP control channel (port …

TCP — Port 1214 was used by Kazaa and Morpheus, popular peer-to-peer file sharing applications in the …

TCP/UDP — Network File System. Allows remote access to files over a network as if they were …

TCP/UDP — Port 2710 is commonly used by XBT Tracker and other BitTorrent trackers for peer discovery …

TCP — Port 2811 is used by Globus GridFTP for high-performance, secure file transfer in scientific computing …

TCP — Port 3260 is the standard port for iSCSI (Internet Small Computer System Interface), a protocol …

TCP/UDP — Port 4662 is used by the eMule and eDonkey2000 peer-to-peer file sharing applications for client-to-server …

TCP/UDP — Port 6346 is used by the Gnutella peer-to-peer file sharing protocol, which powers clients like …

TCP/UDP — Port 6881 is the first in the default range (6881-6889) used by BitTorrent clients for …

TCP — Port 8112 is the default port for the Deluge BitTorrent client's web interface. Deluge is …

TCP — Port 9091 is the default web interface port for Transmission, a popular lightweight BitTorrent client …

TCP/UDP — Used by Dropbox for LAN sync discovery and file transfer between devices on the same …

TCP/UDP — Default TCP/UDP port used by Syncthing for peer-to-peer file synchronization between devices. Syncthing is an …

TCP/UDP — Default port for Transmission BitTorrent client. Used for peer-to-peer file sharing using the BitTorrent protocol. …

TCP/UDP — BNet protocol. Used for multiplayer gaming and peer-to-peer networking.

TCP/UDP — Originally used by the game Doom for multiplayer over IPX networks. Also assigned to MDQS …

TCP — Port 1119 is used by Blizzard Entertainment's Battle.net gaming platform for chat and friend list …

UDP — Port 2302 is the default game server port for ArmA (Armed Assault) series games and …

UDP — Port 2456 is the default game server port for Valheim, a popular Viking survival game. …

TCP/UDP — Port 3074 is the primary port used by Microsoft Xbox Live for online gaming services, …

TCP/UDP — Port 3724 is the primary game port used by Blizzard Entertainment's World of Warcraft and …

TCP/UDP — Port 7777 is a popular choice for game servers and custom applications, used by iChat …

UDP — Port 8767 is the default UDP port for TeamSpeak 2 (legacy) voice communication servers used …

UDP — Used by various Battlefield series game servers and several indie game titles for multiplayer communications. …

UDP — Default port for Minecraft Bedrock Edition servers used on consoles, mobile, and Windows 10 platforms. …

TCP — Default port for Starbound multiplayer game servers. Starbound is a sandbox exploration game that uses …

TCP — Minecraft Java Edition multiplayer server. The default port for hosting Minecraft game servers that players …

TCP — Default RCON (Remote Console) port for Minecraft Java Edition servers. Allows administrators to send commands …

UDP — The original default port for id Software's Quake game servers, later carried over to Quake …

UDP — Valve Source Engine and Steam game servers. Used by Counter-Strike, Team Fortress 2, Garry's Mod, …

UDP — Default game port for Rust, a popular survival multiplayer game. Players connect to Rust servers …

TCP — RuneScape game client connection port. Used by the popular MMORPG RuneScape for client-server communication during …

TCP/UDP — Message Send Protocol. A simple protocol for sending short messages between users on different hosts. …

TCP — Port 87 (also called 'link') was used for terminal-to-terminal chat on UNIX systems. It predates …

TCP/UDP — TAC News. A protocol for distributing news and bulletin board messages through Terminal Access Controllers …

TCP/UDP — Metagram Relay. A protocol for relaying metagram messages between network nodes. Rarely used in modern …

TCP — NNTP (Network News Transfer Protocol), defined in RFC 977 and updated in RFC 3977, is …

TCP/UDP — SEND protocol. An early messaging protocol for sending short text messages between networked users.

TCP/UDP — IRC (Internet Relay Chat) is a text-based real-time messaging protocol defined in RFC 1459. While …

TCP — Port 218 is assigned to MPP (Message Posting Protocol), designed for posting messages to bulletin …

TCP/UDP — Tobit David Service Layer. Used by the Tobit David messaging and fax server software.

TCP/UDP — Tobit David Replica. Handles data replication for Tobit David messaging and fax server systems.

TCP/UDP — Personal Link. A protocol for establishing personal communication links between networked users.

TCP/UDP — OCS CMU. Carnegie Mellon University Office Communication System protocol.

TCP/UDP — OCS AMU. Office Communication System Administrative Management Unit protocol.

TCP — Port 433 is assigned to NNSP (Network News Transfer Protocol Security), used for secure NNTP …

TCP/UDP — SGCP (Simple Gateway Control Protocol). Predecessor to MGCP for controlling voice gateways in VoIP networks.

TCP — Port 444 is assigned to SNPP (Simple Network Paging Protocol), defined in RFC 1861, used …

TCP/UDP — Computer Supported Telecommunications Applications (CSTA) TServer. Protocol for telephony server integration.

TCP/UDP — MyPhone VoIP. Protocol for the MyPhone voice-over-IP communication application.

TCP/UDP — Telephony Network Read/Write. Protocol for accessing telephony network data.

TCP/UDP — Telephony Network Full Duplex 1. Full-duplex telephony protocol for simultaneous voice communication.

TCP/UDP — SS7 over IP (NS). Signaling System 7 over IP for telecom signaling network services.

TCP/UDP — AVIAN protocol. Used for message transport, sometimes humorously associated with RFC 1149 (IP over Avian …

TCP/UDP — STMF protocol. Used for Store-and-Forward type message transfer.

TCP — Port 504 is assigned to Citadel, an open-source groupware and messaging server providing email, calendaring, …

TCP — Port 510 is assigned to FCP (FirstClass Protocol), used by FirstClass email and conferencing system. …

UDP — Port 517 is assigned to Talk, a real-time text chat program for Unix systems. Obsolete …

UDP — Port 518 is assigned to NTalk (New Talk), an updated version of the Unix Talk …

TCP/UDP — IRC-SERV. Server-to-server IRC protocol for linking Internet Relay Chat networks.

TCP — Port 531 is associated with both AOL Instant Messenger and as an alternate IRC port. …

TCP — Port 532 is assigned to netnews, used for Usenet news reading and article transfer. Usage …

TCP — Port 563 is assigned to NNTPS (Network News Transfer Protocol over TLS), the encrypted version …

TCP/UDP — Collaborator. Protocol for real-time collaboration and document sharing.

TCP/UDP — BMPP protocol. Binary Message Processing Protocol for efficient message handling.

TCP/UDP — MeComm protocol. Media communication protocol for messaging systems.

TCP/UDP — MeRegister. Registration protocol for MeComm media communication services.

TCP/UDP — Virtual Presence Protocol. Protocol for maintaining virtual presence and awareness in networked environments.

TCP — Secure Internet Live Conferencing (SILC), an encrypted messaging and conferencing protocol with end-to-end encryption. Largely …

TCP — Simple Message Queue Protocol (SMQP), an early lightweight message queuing protocol predating modern alternatives like …

TCP — Internet Relay Chat over SSL/TLS (IRCS). Most IRC networks use port 6697 in practice rather …

TCP — Port 1337 is associated with WASTE, a peer-to-peer encrypted messaging and file sharing application. It …

TCP — Port 1414 is the default listener port for IBM MQ (formerly WebSphere MQ / MQSeries) …

TCP — Port 1503 was used by Microsoft NetMeeting and Windows Live Messenger (MSN Messenger) for data …

TCP — Port 1533 is used by IBM Sametime, an enterprise instant messaging and web conferencing platform. …

TCP/UDP — Port 1801 is used by Microsoft Message Queuing (MSMQ) for sending and receiving messages between …

TCP — Port 1863 was used by MSN Messenger (Windows Live Messenger) for instant messaging, presence, and …

TCP — Message Queuing Telemetry Transport. A lightweight publish-subscribe messaging protocol designed for IoT devices, sensor networks, …

TCP — Port 2195 was the original port used by Apple Push Notification service (APNs) for sending …

TCP — Port 2196 was used by Apple Push Notification service (APNs) feedback service, which provided app …

TCP/UDP — Port 4000 is associated with ICQ instant messaging (legacy) and Blizzard's Diablo II game server. …

TCP — Port 4222 is the default client connection port for NATS, a high-performance open-source messaging system …

TCP — Port 4369 is used by EPMD (Erlang Port Mapper Daemon), a port mapper service for …

TCP — Port 5050 was the primary port used by Yahoo Messenger for instant messaging communications. It …

TCP/UDP — Session Initiation Protocol. Signals and controls VoIP (Voice over IP) phone calls, video conferencing, and …

TCP — SIP over TLS (Secure SIP). Encrypted version of the Session Initiation Protocol for secure VoIP …

TCP — Port 5190 is the port used by AOL Instant Messenger (AIM) and the OSCAR (Open …

TCP — Port 5222 is the standard port for XMPP (Extensible Messaging and Presence Protocol) client connections, …

TCP — Port 5223 is used for SSL-encrypted XMPP client connections and historically by Apple Push Notification …

TCP — Port 5228 is used by Google Cloud Messaging (GCM) and Firebase Cloud Messaging (FCM) for …

TCP — Port 5269 is the standard port for server-to-server XMPP federation, allowing different XMPP server instances …

TCP — Port 5280 is used by ejabberd and other XMPP servers for HTTP-based XMPP connections via …

TCP — Advanced Message Queuing Protocol. Used by RabbitMQ and other message brokers for reliable, asynchronous message …

TCP — Internet Relay Chat. A real-time text messaging protocol for group and private communication. Port range …

TCP — Port 6667 is the standard port for IRC (Internet Relay Chat), one of the oldest …

TCP — IRC over TLS/SSL. The encrypted version of Internet Relay Chat, providing secure, private real-time messaging …

TCP — MQTT over TLS/SSL. Encrypted version of MQTT (port 1883) for secure IoT device communication and …

TCP — Port 9092 is the default port for Apache Kafka brokers, one of the most widely …

TCP — Port 9093 is used by Apache Kafka for SSL/TLS-encrypted broker connections, providing a secure alternative …

TCP — Default port for Beanstalkd, a simple and fast general-purpose work queue server. It is used …

TCP — The HTTP management console port for RabbitMQ message broker. It provides a web UI and …

TCP/UDP — An alternate port sometimes used by Mumble voice chat servers as a variant of the …

TCP/UDP — Default port for Mumble, an open-source low-latency voice over IP (VoIP) application designed for gaming …

TCP/UDP — Reserved by IANA for any private printer server. Designated for custom or proprietary network printing …

TCP — WHOIS protocol. Queries domain name registration databases to retrieve information about domain ownership, registration dates, …

TCP — Whois++ was an extended version of the WHOIS protocol designed to provide richer directory queries …

TCP/UDP — Reserved by IANA for any private dial-out service. Designated for custom or proprietary modem dial-out …

TCP/UDP — VetTCP. A legacy protocol originally assigned for veterinary data communications. Rarely encountered in modern networks.

TCP/UDP — MIT Dover Spooler. A print spooling service from MIT used to queue and manage print …

TCP/UDP — Network Printing Protocol. An early protocol for sending print jobs to networked printers, predating modern …

TCP — DICOM (Digital Imaging and Communications in Medicine) is the international standard for medical imaging data …

TCP — The CCSO Nameserver (also called qi or ph) was a directory service developed at the …

TCP/UDP — McIDAS Data Transmission Protocol. Used by the Man-computer Interactive Data Access System for meteorological data …

TCP/UDP — NXEdit. A protocol for networked collaborative editing, allowing multiple users to edit documents simultaneously across …

TCP/UDP — EMFIS Data Service. Emergency Management and Fire Information System data transmission protocol for emergency response …

TCP/UDP — EMFIS Control Service. Control channel for the Emergency Management and Fire Information System.

TCP/UDP — Jargon protocol. A networking service of historical interest, named after the Jargon File tradition in …

TCP/UDP — AED 512 Emulation Service. Provides terminal emulation for the Advanced Electronics Design 512 graphics terminal.

TCP — Network PostScript was assigned for printing using the Adobe PostScript page description language over a …

TCP/UDP — Intergraph Remote Interactive Simulation. Used by Intergraph Corporation for remote interactive simulation and visualization.

TCP/UDP — Remote KIS (Knowbot Information Service). Provides remote access to the Knowbot system for searching distributed …

TCP/UDP — KIS Protocol (Knowbot Information Service). A system for finding information distributed across the network using …

TCP — IMPLink (Interface Message Processor Link) was used in the early ARPANET to connect hosts to …

TCP — Port 201 is assigned to AppleTalk Routing Maintenance, part of Apple's legacy AppleTalk networking suite …

TCP/UDP — ATEXSSTR (ANET). Protocol for the Atex publishing system used in newspaper and media production environments.

TCP/UDP — Port 213 is assigned to IPX (Internetwork Packet Exchange), Novell's legacy networking protocol used in …

TCP/UDP — inbusiness. Protocol for the inbusiness commercial networking product suite.

TCP/UDP — Arcisdms. Protocol for document management services in the ARCIS document management system.

TCP — Port 264 is assigned to BGMP (Border Gateway Multicast Protocol), an experimental protocol for inter-domain …

TCP/UDP — Novastor Backup. Protocol for NovaStor backup software for network-based data backup and recovery operations.

TCP/UDP — Magenta Logic. Protocol for the Magenta Logic industrial automation and control system.

TCP — Port 350 is assigned to MATIP Type A (Mapping of Airline Traffic over Internet Protocol), …

TCP — Port 351 is assigned to MATIP Type B, a variant of MATIP used for carrying …

TCP/UDP — DTAG (Deutsche Telekom AG). Protocol used by Deutsche Telekom for secure business communication services.

TCP/UDP — Cloanto Net 1. Used by Cloanto software for network license management and communication.

TCP/UDP — MortgageWare. Protocol for the MortgageWare financial services application for mortgage processing.

TCP/UDP — TIA/EIA/IS-99 modem client. Protocol for modem communication following the IS-99 standard.

TCP/UDP — TIA/EIA/IS-99 modem server. Server-side protocol for modem communication following the IS-99 standard.

TCP — Port 387 is assigned to AURP (AppleTalk Update-Based Routing Protocol), used to tunnel AppleTalk traffic …

TCP/UDP — Unidata LDM (Local Data Manager). Used by the Unidata program for distributing real-time meteorological and …

TCP/UDP — EMBL Nucleic Data Transfer. Used by the European Molecular Biology Laboratory for transferring nucleic acid …

TCP/UDP — Genie Protocol. Protocol for the Genie online service and its client applications.

TCP/UDP — Silverplatter. Protocol for the SilverPlatter academic database search platform.

TCP/UDP — Ariel1. Protocol for the Ariel interlibrary document delivery system.

TCP/UDP — Ariel2. Extended protocol for the Ariel interlibrary document delivery system.

TCP/UDP — Ariel3. Third-generation protocol for the Ariel document delivery system.

TCP/UDP — ICAD protocol. Used by the ICAD intelligent CAD system for design collaboration.

TCP/UDP — Port 434 is assigned to MobileIP-Agent, used by Mobile IP home and foreign agents to …

TCP/UDP — Creative Partner. Protocol for Creative Labs partner device communication.

TCP/UDP — Radio Control Protocol. Protocol for controlling radio equipment over IP networks.

TCP/UDP — Mondex. Protocol for the Mondex electronic cash smart card payment system.

TCP — Port 475 is assigned to Cybercash, an early internet payment processing protocol from the mid-1990s. …

TCP/UDP — PH (Phone Book) Service. CCSO Nameserver/PH directory service for looking up people and contact information, …

TCP/UDP — Air Soft Power Burst. Protocol for PowerBurst high-speed wireless data transmission.

TCP/UDP — ISO ILL Protocol. ISO 10161 Interlibrary Loan protocol for automated book lending between libraries.

TCP — Port 502 is assigned to Modbus, widely used in industrial control systems (ICS), SCADA systems, …

TCP/UDP — OHIMSRV. Protocol for the Oracle Health Information Management System.

TCP/UDP — Videotex. Protocol for interactive videotex services providing text and simple graphics over networks.

TCP/UDP — Stock IXChange. Protocol for real-time stock exchange data transmission.

TCP/UDP — Customer IXChange. Protocol for customer data exchange in commercial environments.

TCP/UDP — Port 542 is assigned to 'commerce' in the IANA registry for commercial transaction processing. Never …

TCP/UDP — IDFP protocol. Used for identification and fingerprint data exchange.

TCP/UDP — CyberCash. Protocol for the CyberCash internet payment system, an early e-commerce payment gateway.

TCP/UDP — CD Softball Auction. Protocol for the CD Software online auction system.

TCP/UDP — Microsoft Rome. Protocol for Microsoft Rome productivity software communication.

TCP/UDP — Sonar Data. Protocol for transmitting sonar and underwater acoustic data.

TCP/UDP — CAL protocol. Computer-Aided Learning protocol for educational software.

TCP/UDP — EyeLink. Protocol for the SR Research EyeLink eye-tracking system.

TCP/UDP — CAB Protocol. Computer-Aided Building protocol for building automation systems.

TCP — TUNNEL profile as defined in RFC 3620, a BEEP profile for creating tunneled connections through …

TCP/UDP — ESCP-IP. Epson Stylus Color Protocol over IP for network printer communication.

TCP — Multicast Source Discovery Protocol (MSDP), defined in RFC 3618, used by PIM-SM to share active …

TCP/UDP — Label Distribution Protocol (LDP), defined in RFC 5036, used in MPLS networks to distribute label …

TCP — Registry Registrar Protocol (RRP), defined in RFC 2832, was the original protocol for domain registrar-to-registry …

TCP/UDP — IEEE Manufacturing Message Specification (MMS), defined in ISO 9506, used in industrial automation and SCADA …

UDP — Ad hoc On-Demand Distance Vector (AODV) routing protocol, defined in RFC 3561, used in mobile …

TCP/UDP — TenFold. Protocol for the TenFold application development platform.

TCP/UDP — Campaign Contribution Disclosures. Protocol for handling campaign finance data.

TCP/UDP — VACDSM-SWS. Vacuum Deposition System Monitoring protocol.

TCP/UDP — VACDSM-APP. Application protocol for vacuum deposition system monitoring.

TCP/UDP — CIMPLEX protocol. Computer-Integrated Manufacturing Protocol for factory automation.

TCP/UDP — REALM-RUSD (Realm Roaming User Session Database) protocol, used in early mobile network roaming session management …

TCP — IEEE Manufacturing Message Specification (MMS) over SSL/TLS, the encrypted variant of the MMS industrial control …

UDP — Optimized Link State Routing (OLSR) protocol, defined in RFC 3626, is a proactive routing protocol …

TCP — Extensible Provisioning Protocol (EPP), defined in RFC 5734, the standard protocol for domain registrar-to-registry communication. …

TCP — Link Management Protocol (LMP), defined in RFC 4204, used in optical and MPLS networks to …

TCP — Internet Registry Information Service (IRIS) over BEEP transport, defined in RFC 3983. Provides standardized protocol …

TCP — Tag Distribution Protocol (TDP), a Cisco proprietary precursor to the IETF-standardized LDP on port 646, …

UDP — Topology Broadcast Based on Reverse-Path Forwarding (TBRPF), defined in RFC 3684, a link-state routing protocol …

TCP/UDP — Webster. Network dictionary service providing word definitions and lookups.

TCP/UDP — Phone Book. Network phonebook directory service for looking up contact information.

TCP/UDP — CADLOCK. CAD file locking protocol for preventing concurrent editing conflicts in design files.

TCP — NETCONF over SSH, defined in RFC 6242, provides XML-based network device configuration management. Primary method …

TCP — NETCONF over BEEP transport, defined in RFC 4744. An alternative NETCONF transport with less deployment …

TCP — NETCONF over SOAP with HTTPS transport, defined in RFC 4743. Used where firewall policies favor …

TCP — One-Way Active Measurement Protocol (OWAMP) control channel, defined in RFC 4656, for measuring one-way network …

TCP — Two-Way Active Measurement Protocol (TWAMP) control channel, defined in RFC 5357, for measuring round-trip network …

TCP — OMG Initial References, used by CORBA for obtaining initial object references. CORBA was dominant enterprise …

TCP/UDP — Netnews Administration System (NAS), defined in RFC 4707, for centralized management of NNTP news server …

TCP — Cadlock2 network locking protocol, used in CAD/CAM license management systems to enforce concurrent use licenses …

TCP — Port 3690 is the default port for Apache Subversion (SVN), a widely used version control …

TCP — Port 4840 is the default port for OPC UA (OPC Unified Architecture), an industrial communication …

UDP — Port 5683 is the standard port for CoAP (Constrained Application Protocol), a lightweight RESTful protocol …

TCP — Port 8042 is the default port for the Apache Hadoop YARN NodeManager web interface. NodeManagers …

TCP — Port 8123 is the default HTTP port for Home Assistant, the most popular open-source home …

TCP — Port 8332 is the default RPC (Remote Procedure Call) port for Bitcoin Core on the …

TCP — Port 8333 is the standard peer-to-peer communication port for the Bitcoin network, used by Bitcoin …

TCP — Port 8545 is the default JSON-RPC port for Ethereum nodes (go-ethereum/geth and others) for interacting …

TCP — Git protocol (git://). Provides fast, read-only access to Git repositories without authentication or encryption. Used …

TCP — Port 9735 is the default peer-to-peer port for Lightning Network nodes, a Layer 2 payment …

TCP — Port 9870 is the default web UI port for the Apache Hadoop HDFS NameNode in …

TCP — Port 9999 is used by various applications including Urchin web analytics (predecessor to Google Analytics), …

TCP — Used by Veritas NetBackup for client-to-server backup communications. The NetBackup client daemon listens on this …

TCP — Default P2P communication port for the Monero cryptocurrency node. Used for block and transaction propagation …

TCP — Default RPC (Remote Procedure Call) port for the Monero cryptocurrency daemon. Allows wallets and external …

TCP — Used for Bitcoin testnet peer-to-peer network communication between nodes. Testnet is used by developers to …

TCP/UDP — Default peer-to-peer networking port for Ethereum nodes running Geth and other Ethereum clients. Used for …

TCP — Widely used as a default HTTP web interface port on Chinese-manufactured IP cameras, DVR, and …

TCP — Default TCP client access port for Dahua brand DVR, NVR, and IP camera systems. Used …

TCP — Used by Helium network hotspot miners for peer-to-peer blockchain communication. Required to be forwarded for …

UDP — The standard port for BACnet (Building Automation and Control Network) over IP protocol. Used in …

TCP — Default HTTP web UI port for Apache Hadoop's HDFS NameNode. Provides access to the file …

TCP/UDP — A repeating-digit port commonly chosen for development, testing, and custom application use due to its …

TCP — Secure Shell. Provides encrypted remote login, command execution, and file transfer (SCP/SFTP). The standard for …

TCP — Telnet protocol. Provides unencrypted text-based remote login to network devices and servers. All data including …

TCP/UDP — Reserved by IANA for any private terminal access protocol. Designated for custom or proprietary remote …

TCP — Port 89 was assigned to the SU/MIT Telnet Gateway, an early ARPANET service that provided …

TCP — SUPDUP was a terminal protocol developed at MIT in the 1970s as an enhancement to …

TCP — Port 107 was assigned as an alternate or gateway-mediated Telnet service. This service is completely …

UDP — XDMCP (X Display Manager Control Protocol) allows X Window System display terminals to request a …

TCP/UDP — Unisys ARPs. Unisys Asynchronous Remote Protocol System for remote terminal access to Unisys mainframe systems.

TCP/UDP — Berkeley rlogind with SPX authentication. An enhanced version of rlogin using Sequenced Packet Exchange for …

TCP/UDP — Berkeley rshd with SPX authentication. An enhanced version of remote shell using Sequenced Packet Exchange …

TCP/UDP — Display Systems Protocol for 3270 terminals. Enables network communication with IBM 3270 terminal emulation systems.

TCP/UDP — Port 259 is assigned to ESRO (Efficient Short Remote Operations), a lightweight protocol designed for …

TCP — Port 311 is used by Apple macOS Server for its web-based management interface. Exposing this …

TCP — Port 384 is assigned to ARNS (A Remote Network Server System), an early protocol for …

TCP/UDP — Timbuktu Remote Desktop. A remote desktop and file sharing application for Mac and Windows platforms …

TCP/UDP — DEC VMS System Management. Used for remote administration of DEC VMS operating systems.

TCP/UDP — AMPR-RCMD. Remote command protocol for the AMPRNet (Amateur Packet Radio Network).

TCP/UDP — XVTTP. eXtensible Virtual Terminal Transport Protocol for remote terminal access.

TCP — Port 512 is assigned to rexec (Remote Process Execution). Transmits credentials in plaintext and has …

TCP — Port 513 is assigned to rlogin, which relies on a deeply flawed IP-based trust model …

TCP/UDP — Port 530 is assigned to RPC (Remote Procedure Call) as a registered port. RPC exposure …

TCP/UDP — UUCP Remote Login. Protocol combining UUCP (Unix-to-Unix Copy) with remote login capabilities.

TCP — Port 543 is assigned to klogin, the Kerberos-authenticated rlogin service. Superseded by Kerberos-authenticated SSH.

TCP — Port 544 is assigned to krcmd (Kerberos Remote Command), the Kerberos-authenticated version of rsh. Superseded …

TCP/UDP — SSL Shell. Secure shell variant using SSL/TLS for encrypted remote login.

TCP/UDP — SupportSoft remote support and diagnostics protocol, used by the SupportSoft enterprise remote assistance platform. Common …

TCP — Apple macOS Server administration protocol, used by the macOS Server Admin application for remote server …

TCP/UDP — TCONP protocol. Used for Telnet Connection Point management.

TCP/UDP — NLOGIN. Network login protocol for remote authentication.

TCP/UDP — CON protocol. Used for console connections and management.

TCP/UDP — RXE. Remote Execution Environment protocol.

TCP — 3Com AccessBuilder remote access server management protocol. Entirely obsolete following the decline of dedicated hardware-based …

TCP/UDP — VMware Server and ESXi management port, used for host-agent communication including the VMware Authentication Daemon. …

TCP — VMware Remote Console (VMRC) port, used for remote access to virtual machine consoles through VMware …

TCP/UDP — VMware Authentication Daemon (alternate). Sometimes used by VMware for additional authentication services.

TCP — Telnet over SSL/TLS. While it addresses Telnet's plaintext problem, SSH on port 22 is universally …

TCP — Port 1494 is used by Citrix Independent Computing Architecture (ICA) protocol for virtual desktop and …

TCP/UDP — Port 1604 is associated with Citrix systems and the Datagram Protocol for remote application delivery. …

TCP — Port 2222 is commonly used as an alternate SSH port to reduce automated brute-force attacks …

TCP — Port 2598 is used by Citrix for Reliable ICA (RICAL), an enhanced version of the …

TCP/UDP — Port 3283 is used by Apple Remote Desktop (ARD) for remote management and screen sharing …

TCP/UDP — Remote Desktop Protocol. Provides graphical remote access to Windows desktops and servers. A primary target …

TCP — Port 5037 is the local host port used by the Android Debug Bridge (ADB) server …

TCP — Port 5500 is used for reverse VNC (Virtual Network Computing) connections, where the remote desktop …

TCP — Port 5555 is used by Android Debug Bridge (ADB) for remote TCP connections to Android …

TCP — Port 5631 is used by Symantec (now Broadcom) pcAnywhere for remote desktop data transfer. PCAnywhere …

TCP — Port 5800 is used by VNC servers to serve an embedded Java applet-based web viewer, …

TCP — Virtual Network Computing. Provides graphical remote desktop access using the RFB (Remote Framebuffer) protocol. Cross-platform …

TCP — Port 5901 is used by VNC (Virtual Network Computing) for the second virtual display (display …

TCP/UDP — Port 5938 is the primary port used by TeamViewer for remote desktop and remote support …

TCP — Port 5985 is used by Windows Remote Management (WinRM) for HTTP-based remote PowerShell and management …

TCP — Port 5986 is used by Windows Remote Management (WinRM) for HTTPS-encrypted remote PowerShell and management …

TCP — Port 6000 is the base port for X11 (X Window System), the display server protocol …

TCP — Port 8291 is used by MikroTik's proprietary Winbox management protocol for configuring RouterOS-based routers and …

TCP — Used by Webmin, a web-based Linux/Unix system administration interface. Also assigned to DNP3 (Distributed Network …

TCP — Default port for Synergy and its open-source fork Barrier, software that shares a keyboard and …

UDP — The starting port in the default range (60000-61000) used by Mosh (Mobile Shell), a UDP-based …

TCP/UDP — MSG Authentication. A legacy ARPANET protocol used for authentication within the MSG messaging system.

TCP/UDP — Digital Audit Daemon. Used by Digital Equipment Corporation (DEC) systems for centralized audit logging and …

TCP/UDP — Terminal Access Controller Access-Control System. Provides centralized authentication, authorization, and accounting for network devices such …

TCP/UDP — XNS Authentication. Provides authentication services within the Xerox Network Systems (XNS) protocol suite.

TCP/UDP — ACA Services (ACAS). Used by ACA (Access Control Appliance) systems for network access control and …

TCP/UDP — TACACS-DS (Terminal Access Controller Access Control System - Database Service) is a predecessor variant of …

TCP/UDP — Kerberos authentication protocol. Provides secure mutual authentication using tickets, widely used in Active Directory and …

TCP/UDP — Port 90 was originally assigned to DNSIX (Defense Intelligence Agency Network Security for Information Exchange), …

TCP/UDP — GSS X License Verification. Used for verifying X Window System licenses in networked environments using …

TCP/UDP — Password Generator Protocol. A service that generates random passwords for users, typically used in early …

TCP/UDP — NETSC Production. Network security services for production environments, part of the NETSC system.

TCP/UDP — NETSC Development. Development environment counterpart of NETSC for testing network security services.

TCP/UDP — Unisys Audit SITP. Security audit protocol used by Unisys systems for compliance logging and event …

TCP/UDP — Gateway Access Control Protocol. Used for controlling access through network gateways and managing gateway policies.

TCP/UDP — DNSIX Network Level Module Audit. Part of the DNSIX (DoD Network Security for Information Exchange) …

TCP/UDP — DNSIX Session Management Module Audit Redirect. Handles audit redirection for session-level security events in the …

TCP/UDP — Certificate Distribution Center. Protocol for distributing digital certificates in networked environments.

TCP/UDP — Check Point FireWall-1 SecureRemote. Used by Check Point VPN clients for establishing secure remote access …

TCP/UDP — Posture Transport Protocol over TLS. Used for network endpoint assessment and posture checking with TLS …

TCP/UDP — Entrust Time Stamping. Used by Entrust for cryptographic time stamping services to prove document existence …

TCP/UDP — novIQ DecAuth. Authentication service for novIQ distributed computing systems.

TCP/UDP — Texar Security Port. Used by Texar security systems for encrypted communication.

TCP/UDP — NDSAUTH. Novell Directory Services authentication protocol for NDS tree-based access control.

TCP/UDP — Network Security Risk Management Protocol. Used for assessing and managing network security risks.

TCP/UDP — DTK (Deception Toolkit). A protocol associated with the Deception Toolkit for setting up honeypots and …

TCP — Port 370 is assigned to codaauth2, the authentication service for the Coda distributed filesystem developed …

TCP/UDP — ASA Message Router Object Definition. Protocol for routing messages between ASA (Adaptive Security Appliance) objects.

TCP/UDP — Lightweight Directory Access Protocol. Accesses and manages distributed directory services like Active Directory. Used for …

TCP/UDP — Kryptolan. An encrypted communication protocol for secure data transfer.

TCP/UDP — Comscm. Communications Security Configuration Management protocol.

TCP/UDP — Port 464 is assigned to kpasswd, used for changing Kerberos passwords in Active Directory and …

TCP/UDP — Photuris key management. A key management protocol for establishing security associations, proposed as an alternative …

TCP/UDP — SCX-Proxy. Security Configuration Exchange proxy for distributing security policies.

TCP/UDP — LJK Login. Protocol for LJK International login and authentication services.

TCP/UDP — GSS-HTTP (GSSAPI over HTTP). Protocol for Generic Security Service API authentication over HTTP connections.

TCP/UDP — GO-Login. Authentication protocol for the GO network login system.

UDP — Port 500 is assigned to IKE (Internet Key Exchange) and ISAKMP, the key negotiation protocols …

TCP/UDP — SNARE (System iNtrusion Analysis and Reporting Environment). Protocol for security intrusion detection and reporting.

TCP/UDP — SCC Security. Protocol for the Security Command Center security monitoring system.

TCP/UDP — Key Server. Protocol for cryptographic key distribution and management.

TCP/UDP — Password Change. Protocol for remote password change operations.

TCP/UDP — IDXP (Intrusion Detection Exchange Protocol). Used for sharing intrusion detection data between security systems.

TCP/UDP — Crypto Admin. Protocol for administration of cryptographic systems and key management.

TCP/UDP — ASIA protocol. Adaptive Security Infrastructure Architecture for dynamic security management.

TCP/UDP — PassGo Tivoli. Protocol for PassGo Technologies integration with IBM Tivoli identity management.

TCP — LDAP over SSL/TLS. Encrypted version of LDAP for secure directory access and authentication. Used by …

TCP/UDP — MCNS Security. Multimedia Cable Network System security protocol for cable network authentication.

TCP/UDP — Entrust Single Point of Service. Protocol for Entrust digital certificate management.

TCP/UDP — tinc VPN. Protocol for the tinc mesh VPN daemon, creating secure virtual private networks with …

TCP/UDP — Secure Auxiliary Bus. Protocol for secure communication on auxiliary data buses.

TCP/UDP — Entrust Administration Service. Protocol for administering Entrust PKI (Public Key Infrastructure) systems.

TCP/UDP — Entrust Access Management Service. Protocol for Entrust access management and identity verification.

TCP/UDP — Entrust Key Management Service Handler. Protocol for managing cryptographic keys in Entrust PKI systems.

TCP/UDP — Entrust Enrollment Mesh. Protocol for Entrust certificate enrollment in mesh PKI topologies.

TCP/UDP — Entrust Administration Service Manager. Administrative management protocol for Entrust PKI infrastructure.

TCP/UDP — Kerberos 5 administration server (kadmin), used to remotely administer the KDC including adding, modifying, and …

UDP — Kerberos version 4 authentication service. Has known cryptographic weaknesses including DES-only encryption. Superseded by Kerberos …

TCP/UDP — Kerberos v4 master database administration service. Relies on cryptographically broken DES encryption. Should be disabled …

TCP/UDP — Kerberos v4 user registration service. Deprecated and replaced by kadmin on port 749 in Kerberos …

TCP — Kerberos v5 KDC database propagation service, used to replicate the principal database from master to …

TCP/UDP — Kerberos v4 krbupdate service for updating entries in the legacy v4 authentication system. Part of …

TCP/UDP — RPAsswd. Remote password change protocol for modifying user passwords on remote systems.

TCP — Certificate Management Protocol (CMP), defined in RFC 4210, used for PKI certificate lifecycle management including …

UDP — Group Domain of Interpretation (GDOI), defined in RFC 6407, an IKE-based key management protocol for …

UDP — Kerberized Internet Negotiation of Keys (KINK), defined in RFC 4430, uses Kerberos tickets for IPsec …

TCP — SofaWare Secure Remote Management port, used by Check Point SofaWare embedded security gateway appliances.

TCP — SOCKS proxy protocol. A general-purpose proxy protocol that routes any TCP/UDP traffic through a proxy …

TCP/UDP — OpenVPN. An open-source VPN solution that creates encrypted point-to-point tunnels using SSL/TLS. Widely used for …

TCP — Port 1241 is the default port for the Nessus vulnerability scanner server daemon. Security professionals …

TCP/UDP — Port 1293 is assigned to IPSec (Internet Protocol Security) for secure VPN tunnel establishment and …

TCP — Port 1344 is the default port for the Internet Content Adaptation Protocol (ICAP). ICAP allows …

TCP — Port 1524 is associated with the Ingreslock backdoor, historically left open by some attackers after …

UDP — Port 1645 is an older, unofficial RADIUS authentication port used before the IANA officially assigned …

UDP — Port 1646 is the legacy RADIUS accounting port, used before IANA standardized port 1813 for …

UDP — Port 1701 is the standard port for Layer 2 Tunneling Protocol (L2TP), used to create …

TCP — Point-to-Point Tunneling Protocol. A VPN protocol developed by Microsoft. Considered cryptographically broken and insecure — …

UDP — Port 1812 is the official IANA-assigned port for RADIUS (Remote Authentication Dial-In User Service) authentication. …

UDP — Port 1813 is the official IANA-assigned port for RADIUS accounting. It collects session data including …

TCP — Port 2967 is used by Symantec (now Broadcom) Endpoint Protection Manager for communication between the …

TCP — Port 3269 is the SSL/TLS-encrypted version of the Microsoft Active Directory Global Catalog service on …

TCP/UDP — Port 3868 is the standard port for the Diameter protocol, the successor to RADIUS used …

TCP — Port 4444 is commonly associated with Metasploit Framework's default meterpreter reverse shell listener, making it …

UDP — Port 4500 is used for IPsec NAT traversal (NAT-T), which encapsulates IKE and ESP packets …

TCP — Port 8200 is the default port for HashiCorp Vault, an enterprise secrets management and encryption-as-a-service …

TCP/UDP — Port 8388 is a commonly used port for Shadowsocks, an encrypted proxy protocol originally created …

TCP — Port 8834 is the default HTTPS port for the Nessus vulnerability scanner web interface and …

TCP — Port 9001 is the default OR (onion router) port used by Tor network relay nodes …

TCP — Port 9050 is the default SOCKS5 proxy port for the Tor client, allowing local applications …

TCP — Port 9051 is the Tor control port, which allows local applications to control and monitor …

TCP — Port 9150 is the SOCKS5 proxy port used by the Tor Browser Bundle, as distinct …

TCP/UDP — Historically associated with NetBus, an early remote administration and trojan tool from the late 1990s. …

TCP/UDP — Historically associated with Back Orifice, a controversial remote administration tool / trojan from 1998 by …

UDP — WireGuard VPN (common alternative port). While WireGuard has no official IANA port, 51820 is the …

UDP — WireGuard VPN. A modern, high-performance VPN protocol built into the Linux kernel. Uses state-of-the-art cryptography …

TCP/UDP — RTSPS (RTSP over TLS). Secure variant of the Real Time Streaming Protocol using TLS encryption …

TCP/UDP — SMPTE protocol. Used by the Society of Motion Picture and Television Engineers for media production …

TCP/UDP — CreativeServer. Protocol for Creative Labs media server communication.

TCP/UDP — Apple QuickTime Streaming. Used by Apple QuickTime for streaming media content.

TCP/UDP — Digital VRC. Digital Equipment Corporation Video Remote Control protocol.

TCP/UDP — MegaMedia Admin. Administration protocol for MegaMedia streaming systems.

TCP/UDP — Networked Media Streaming Protocol. Protocol for real-time streaming of multimedia content.

TCP — Port 545 is assigned to appleqtcsrvr (Apple QuickTime Content Server). Obsolete as Apple discontinued QuickTime …

TCP/UDP — Real Time Streaming Protocol. Controls the delivery of real-time streaming media such as IP camera …

TCP/UDP — VEMMI (Versatile Multimedia Interface). Protocol for interactive multimedia videotex services as defined in ITU-T T.107.

TCP/UDP — Philips Video-Conferencing. Protocol for Philips video conferencing systems.

TCP/UDP — PSSC protocol. Peer-to-peer Streaming Service Control for distributed media streaming.

TCP/UDP — PureNoise. Protocol for the PureNoise audio streaming and noise generation system.

TCP/UDP — VID protocol. Video distribution protocol for streaming video content.

TCP — Port 1720 is used by the H.323 VoIP and video conferencing protocol for call signaling …

TCP/UDP — Port 1755 is used by Microsoft Windows Media Services (MMS protocol) for streaming audio and …

TCP — Port 1935 is the default port for Real-Time Messaging Protocol (RTMP), developed by Adobe for …

TCP — Port 2000 is used by Cisco's Skinny Client Control Protocol (SCCP), also known as Skinny, …

UDP — Port 2427 is used by Media Gateway Control Protocol (MGCP) for communication between call agents …

TCP/UDP — Port 3478 is the standard port for STUN (Session Traversal Utilities for NAT) and TURN …

TCP — Port 3689 is used by Apple's Digital Audio Access Protocol (DAAP), which powers iTunes and …

UDP — Port 4569 is used by IAX2 (Inter-Asterisk eXchange version 2), a VoIP protocol native to …

TCP/UDP — Port 5004 is the standard IANA-assigned port for RTP (Real-time Transport Protocol), which carries audio …

TCP — Port 6600 is the default port for MPD (Music Player Daemon), an open-source server-side music …

TCP — Port 7070 is used by RTSP (Real Time Streaming Protocol) as an alternative port and …

TCP — Port 8096 is the default HTTP port for Jellyfin and Emby Media Server, popular open-source …

TCP — Port 8554 is a commonly used alternate port for RTSP (Real Time Streaming Protocol) streaming …

TCP — Primary HTTP port for Plex Media Server web interface and remote access. Used for streaming …

TCP — Sunshine game streaming server (HTTPS). Used with the Moonlight client for low-latency remote game streaming …

TCP/UDP — Port 0 is reserved by IANA and is not used for any service. In programming, …

TCP — TCP Port Service Multiplexer. Allows multiple services to share a single well-known port by routing …

TCP/UDP — Port 2 is listed as reserved by IANA but was historically assigned to the Management …

TCP/UDP — Originally assigned to the CompressNET Management Utility and Compression Process. Port 3 is effectively unused …

TCP/UDP — Port 4 is unassigned in the IANA registry. It has no official protocol assignment and …

TCP/UDP — Remote Job Entry. A legacy protocol used for submitting batch jobs to mainframe computers over …

TCP/UDP — Port 6 is unassigned in the IANA registry. No standard service is defined for this …

TCP/UDP — Echo protocol. Returns any data it receives back to the sender. Used primarily for network …

TCP/UDP — Port 8 is unassigned in the IANA registry. It is sometimes confused with port 80 …

TCP/UDP — Discard protocol. Silently discards all received data without sending any response. Also used for Wake-on-LAN …

TCP/UDP — Port 10 is unassigned in the IANA registry. No standard service uses this port.

TCP/UDP — Active Users (Systat) service. Lists the currently active users on a system. Considered a security …

TCP/UDP — Port 12 is unassigned in the IANA registry. No standard protocol operates on this port.

TCP/UDP — Daytime protocol. Returns the current date and time as a human-readable string. Largely replaced by …

TCP/UDP — Port 14 is unassigned in the IANA registry. No standard network service is defined for …

TCP — An early ARPANET protocol used to query network status information from a remote host. It …

TCP/UDP — Port 16 is unassigned in the IANA registry. No standard protocol uses this port number.

TCP/UDP — Quote of the Day protocol. Sends a short text message (typically a quote or saying) …

TCP/UDP — Character Generator protocol. Continuously sends a stream of characters to the client. Used for network …

TCP/UDP — NSW User System Front End. Part of the NSW (National Software Works) system developed for …

TCP/UDP — Port 28 is unassigned in the IANA registry. No standard network protocol is defined for …

TCP/UDP — MSG ICP (Message Intercommunication Protocol). A legacy protocol from the early ARPANET era used for …

TCP/UDP — Port 30 is unassigned in the IANA registry. No standard service operates on this port.

TCP/UDP — Port 32 is unassigned in the IANA registry. No standard network service is assigned to …

TCP/UDP — Display Support Protocol. An early protocol for remote display support, allowing graphical output to be …

TCP/UDP — Port 34 is unassigned in the IANA registry. No standard protocol is assigned to this …

TCP/UDP — Port 36 is unassigned in the IANA registry. No standard service operates on this port.

TCP/UDP — Time Protocol. Returns the current time as a 32-bit binary value representing seconds since January …

TCP/UDP — Route Access Protocol. Used for exchanging routing information between network devices in early networking environments.

TCP/UDP — Resource Location Protocol. Helps clients discover network resources by querying a resource location server. Defined …

TCP/UDP — Port 40 is unassigned in the IANA registry. No standard network service is defined for …

TCP/UDP — MPM FLAGS Protocol. Part of the Message Processing Module suite used in early ARPANET message …

TCP/UDP — Message Processing Module (receive). Handles the reception portion of the MPM message processing system on …

TCP/UDP — MPM (default send). The sending component of the Message Processing Module system used in legacy …

TCP/UDP — Port 47 is marked as reserved in the IANA registry. It has no assigned service …

TCP/UDP — Port 51 is marked as reserved in the IANA registry. Previously associated with IMP Logical …

TCP/UDP — XNS Time Protocol. Part of the Xerox Network Systems (XNS) suite, used for time synchronization …

TCP/UDP — XNS Clearinghouse. Part of the Xerox Network Systems suite, providing directory and naming services for …

TCP/UDP — ISI Graphics Language. A protocol from the Information Sciences Institute (ISI) for transmitting graphical data …

TCP/UDP — Port 60 is unassigned in the IANA registry. No standard service is defined for this …

TCP/UDP — Port 61 is marked as reserved in the IANA registry. It was historically associated with …

TCP/UDP — Communications Integrator (CI). Originally assigned to Covia Technologies for their communications integration platform.

UDP — Dynamic Host Configuration Protocol server port. Automatically assigns IP addresses, subnet masks, gateways, and DNS …

UDP — DHCP client port. Used by devices to receive IP address assignments and network configuration parameters …

TCP/UDP — NETRJS-1 through NETRJS-4 (ports 71-74) were assigned for the Remote Job Entry service used on …

TCP/UDP — NETRJS-2 is the second of four ports (71-74) assigned to the ARPANET Remote Job Entry …

TCP/UDP — NETRJS-3 is the third variant port for the ARPANET Network Remote Job Service. Defined alongside …

TCP/UDP — NETRJS-4 is the fourth and final port in the ARPANET Network Remote Job Entry suite. …

TCP/UDP — Distributed External Object Store. A protocol for accessing distributed object storage systems across a network.

TCP/UDP — Reserved by IANA for any private Remote Job Entry (RJE) service. Designated for custom batch …

TCP — Finger protocol. Retrieves information about users on a remote system, including login name, real name, …

TCP/UDP — MIT ML Device. Used by the MIT Machine Learning laboratory for device communication and control.

TCP/UDP — Common Trace Facility. A protocol for distributed tracing and debugging across networked systems.

TCP/UDP — MIT ML Device (alternate). A second port assignment for the MIT Machine Learning laboratory device …

TCP/UDP — Micro Focus COBOL. Used by Micro Focus development tools for COBOL application communication and debugging.

TCP/UDP — Device Control Protocol. Used for remotely controlling and configuring network-attached devices.

TCP/UDP — Tivoli Object Dispatcher. Used by IBM Tivoli systems management software for object-based remote procedure calls.

TCP/UDP — DIXIE Protocol. A lightweight protocol for accessing X.500 directory services, providing a simpler alternative to …

TCP/UDP — Port 100 is unassigned in the IANA registry. Sometimes informally used for development or testing …

TCP — ISO-TSAP (Transport Service Access Point) is part of the OSI protocol stack, providing transport layer …

TCP/UDP — Genesis Point-to-Point Trans Net. A protocol for point-to-point data transmission developed by Genesis for networked …

TCP/UDP — 3COM-TSMUX. A multiplexing service from 3Com Corporation for terminal server connections. Also known as poppassd …

TCP/UDP — SNA Gateway Access Server. Provides gateway access to IBM's Systems Network Architecture (SNA) from TCP/IP …

TCP/UDP — RPCBind (also called portmapper) maps ONC RPC program numbers to the dynamic ports on which …

TCP — Identification Protocol (Auth). Identifies the user of a TCP connection. Historically used by IRC servers …

TCP/UDP — Port 114 is listed as unassigned in the IANA registry. Previously associated with Audio News …

TCP/UDP — ANSA REX Notify. Part of the Advanced Network Systems Architecture (ANSA) for event notification in …

TCP/UDP — CFDPTKT. A protocol for ticket-based communication in distributed systems. Rarely encountered in modern networks.

TCP/UDP — Encore Expedited Remote Procedure Call. Used by Encore Computer Corporation for fast remote procedure calls …

TCP/UDP — SMAKYNET. A networking protocol developed for SMAKY educational computer systems produced by Epsitec.

UDP — Network Time Protocol. Synchronizes clocks across networked computers with millisecond accuracy. Essential for logging, security …

TCP/UDP — ANSA REX Trader. Part of the Advanced Network Systems Architecture (ANSA) for service trading and …

TCP/UDP — Locus PC-Interface Net Map Server. Used by Locus Computing for network mapping in their PC-Interface …

TCP/UDP — Locus PC-Interface Connection Server. Used by Locus Computing to manage connections between PCs and UNIX …

TCP/UDP — Cisco FNATIVE. Used by Cisco Systems for native protocol communication between networking devices.

TCP/UDP — Cisco TNATIVE. Used by Cisco Systems for TNATIVE protocol communication between networking equipment.

TCP/UDP — Cisco SYSMAINT. Used by Cisco Systems for system maintenance and management of networking hardware.

TCP/UDP — Statistics Service. A protocol for collecting and distributing network statistics from remote hosts.

TCP — Microsoft RPC Endpoint Mapper. Used by Windows systems for DCOM and RPC services. Frequently targeted …

TCP/UDP — PROFILE Naming System. A directory and naming service protocol used for resolving names to network …

UDP — NetBIOS Name Service. Resolves NetBIOS names to IP addresses on local networks. Part of the …

UDP — NetBIOS Datagram Service. Provides connectionless messaging between NetBIOS hosts for browsing, announcements, and other lightweight …

TCP/UDP — Universal Management Architecture. A protocol for unified management and monitoring of heterogeneous network resources.

TCP/UDP — UAAC Protocol. Used for user agent to agent communication in distributed network environments.

TCP/UDP — ISO Transport Protocol Class 0. The simplest class of the OSI transport layer protocol, providing …

TCP/UDP — ISO Internet Protocol. Part of the OSI network layer providing connectionless network service as defined …

TCP/UDP — High-Level Entity Management System. An early network management protocol that preceded SNMP for monitoring network …

UDP — SGMP (Simple Gateway Monitoring Protocol) was the predecessor to SNMP. Defined in RFC 1028. Replaced …

TCP/UDP — KNET/VM Command/Message Protocol. Used in IBM VM/CMS environments for sending commands and messages between virtual …

TCP/UDP — NSS Routing. A protocol for managing routing tables in the NSS (Name Server System) network …

UDP — SGMP-TRAPS was the trap notification port for SGMP. Replaced by SNMP Trap on port 162.

UDP — Simple Network Management Protocol. Monitors and manages network devices such as routers, switches, and servers. …

UDP — SNMP Trap receiver. Receives asynchronous alert notifications from network devices, such as interface failures, temperature …

TCP/UDP — CMIP (Common Management Information Protocol) over TCP was part of the OSI network management framework. …

TCP/UDP — Port 164 is designated for CMIP/TCP agents, the managed devices that respond to management queries. …

TCP/UDP — Xerox Network Systems Courier. An RPC protocol in the XNS suite for remote procedure calls …

TCP/UDP — Sirius Systems S-Net. A networking protocol developed by Sirius Systems for their proprietary network communications.

TCP/UDP — NAMP (Network Address Maintenance Protocol). Used for maintaining and updating network address mappings.

TCP/UDP — RSVD (Reserved). A port historically associated with reserved functionality but not assigned to any standard …

TCP/UDP — Network Innovations Multiplex. A protocol multiplexing service from Network Innovations Inc. for combining multiple data …

TCP/UDP — Network Innovations CL/1. A connection layer protocol from Network Innovations for establishing reliable data links.

TCP/UDP — Xyplex Terminal Server Multiplexer. Used by Xyplex terminal servers to multiplex multiple terminal sessions over …

TCP/UDP — VMNET. A protocol for virtual machine networking, enabling communication between VMs in early virtualization environments.

TCP/UDP — GENRAD Multiplexer. A protocol from GenRad (now Agilent) for multiplexing test equipment communications.

TCP — Port 178 was assigned to the NeXTStep Window Server, the display server used by NeXT …

TCP — Border Gateway Protocol. The routing protocol that makes the internet work by exchanging routing information …

TCP/UDP — OCBinder. Part of the Object-oriented Computing environment for binding client requests to distributed service objects.

TCP/UDP — OCServer. Object-oriented Computing Server protocol for handling remote object method invocations.

TCP/UDP — Application Communication Interface. A protocol for inter-application communication in distributed computing environments.

TCP/UDP — OSU Network Monitoring System. Developed at Ohio State University for monitoring and managing campus network …

TCP/UDP — Spider Remote Monitoring Protocol. A protocol for remote network monitoring and management in Spider Systems …

TCP/UDP — Directory Location Service. A protocol for discovering the location of directory services on a network.

TCP/UDP — Directory Location Service Monitor. Monitors the health and status of DLS (Directory Location Service) instances …

TCP — SMUX (SNMP Multiplexing Protocol), defined in RFC 1227. Deprecated in favor of AgentX (RFC 2741).

TCP/UDP — AppleTalk Unused. Reserved for the AppleTalk protocol suite but not assigned to any specific AppleTalk …

TCP/UDP — AppleTalk Echo Protocol. Provides echo functionality for AppleTalk networks, similar to ICMP echo for testing …

TCP/UDP — AppleTalk Unused. Reserved within the AppleTalk port range but not assigned to a specific service.

TCP/UDP — AppleTalk Unused. Reserved within the AppleTalk protocol suite port range.

TCP/UDP — AppleTalk Unused. Reserved within the AppleTalk protocol suite port range.

TCP/UDP — Texas Instruments 914C/G Terminal. Protocol for communication with TI 914C/G terminal equipment.

TCP/UDP — VM PWSCS. IBM VM/CMS Programmable Workstation Communication Services for connecting workstations to mainframes.

TCP/UDP — Insignia SoftPC. Protocol used by the Insignia SoftPC emulation software for PC emulation on UNIX …

TCP/UDP — Computer Associates License Server. Used by CA (now Broadcom) for managing software license distribution and …

TCP/UDP — MASQdialer. A protocol used in Linux IP masquerading setups for managing dial-up connections shared across …

TCP/UDP — Direct protocol. Used for direct point-to-point communication between network endpoints.

TCP/UDP — Survey Measurement. A protocol for conducting network performance surveys and collecting measurement data.

TCP/UDP — LINK protocol. Used for establishing data links between networked systems.

TCP/UDP — BHFHS protocol. A legacy networking protocol with limited modern usage.

TCP/UDP — YAWN (Yet Another Window Navigation). A protocol for remote window management and navigation.

TCP/UDP — Openport. A protocol for dynamic port management and service discovery.

TCP/UDP — IIOP Name Service (CORBA). Internet Inter-ORB Protocol naming service for locating distributed CORBA objects.

TCP/UDP — HDAP (Hosted Directory Access Protocol). A protocol for accessing hosted directory services.

TCP/UDP — X-Bone Control. Control protocol for the X-Bone overlay network deployment system.

TCP/UDP — SCSI on ST (Serial Transport). Protocol for running SCSI commands over serial transport links.

TCP/UDP — MANET Protocols. Mobile Ad-hoc Network protocols for communication in infrastructure-less wireless networks.

TCP/UDP — Port 270 is reserved by IANA. Previously associated with GIST but currently has no active …

TCP/UDP — Cable Port A/X. Protocol for cable modem management and provisioning.

TCP/UDP — RESCAP. Resource Capacity protocol for managing and reporting network resource availability.

TCP/UDP — CoreJD. A protocol for core job dispatching in distributed computing environments.

TCP/UDP — K-Block. A protocol for block-level data transfer between networked systems.

TCP/UDP — BHMds protocol. Used for data synchronization in networked environments.

TCP/UDP — VSLMP. Virtual Server Load Management Protocol for distributing workloads across server pools.

TCP/UDP — Opalis Robot. Protocol for Opalis (now Microsoft System Center Orchestrator) IT process automation.

TCP/UDP — DPSI. Data Processing Systems Interface protocol for industrial data processing.

TCP/UDP — Zannet. A protocol for the Zannet networking system.

TCP/UDP — Port 318 is assigned to TSP (Time Stamp Protocol), used for timestamping services in trusted …

TCP/UDP — Precision Time Protocol Event Messages. IEEE 1588 PTP event messages for sub-microsecond time synchronization in …

TCP/UDP — Precision Time Protocol General Messages. IEEE 1588 PTP general messages carrying announce, signaling, and management …

TCP/UDP — PIP protocol. Used for packet-based inter-process communication between networked systems.

TCP/UDP — Prospero non-privileged. Non-privileged access port for the Prospero distributed file system and directory service.

TCP/UDP — Perf Analysis Workbench. Protocol for the Performance Analysis Workbench performance monitoring tool.

TCP/UDP — Zebra Server. Configuration and management protocol for the Zebra routing software (now GNU Quagga/FRRouting).

TCP/UDP — Cabletron Management Protocol. Used by Cabletron (now Enterasys) for network switch and router management.

TCP/UDP — BH611 protocol. A specialized communication protocol for networked systems.

TCP/UDP — DATEX-ASN. Protocol for DATEX (Data Exchange) communication using ASN.1 encoding.

TCP/UDP — BH Event. A protocol for event notification and handling in distributed systems.

TCP/UDP — Shrinkwrap protocol. Used for software distribution and deployment over networks.

TCP — Port 360 is assigned to scoi2odialog, a protocol associated with SCO Unix system dialog management. …

TCP/UDP — Semantix. Protocol for semantic data exchange between networked systems.

TCP/UDP — SRS Send. Secure Routing and Switching send protocol for managed network infrastructure.

TCP/UDP — RSVP Tunnel. Resource Reservation Protocol tunneling for QoS-guaranteed paths through non-RSVP networks.

TCP/UDP — Aurora CMGR. Connection manager protocol for the Aurora network management system.

TCP/UDP — QbikGDP. Protocol for the Qbik WinGate proxy server for gateway discovery and communication.

TCP/UDP — Legent Corporation. Protocol for Legent (later CA/Broadcom) enterprise systems management software.

TCP/UDP — Legent Corporation. Second port for Legent enterprise systems management software suite.

TCP/UDP — Hassle protocol. A legacy networking protocol for resource management.

TCP/UDP — Amiga Envoy Network Inquiry Protocol. Used by Amiga computers running the Envoy networking package for …

TCP/UDP — NEC TNETOS. Protocol for NEC TNETOS operating system networking on NEC mainframe and server platforms.

TCP/UDP — NEC DSETOS. Protocol for NEC DSETOS distributed systems environment on NEC platforms.

TCP/UDP — HP Performance Data Collector. Collects performance metrics from HP/HPE servers and storage systems.

TCP/UDP — HP Performance Data Managed Node. Agent running on managed nodes to report performance data to …

TCP/UDP — Port 383 is assigned to HP OpenView (now Micro Focus Operations Manager), an enterprise network …

TCP/UDP — IBM Application. Protocol for IBM mainframe application communication over TCP/IP networks.

TCP/UDP — UIS protocol. Used for user information services and directory lookups.

TCP/UDP — SynOptics SNMP Relay. SNMP relay protocol for SynOptics (now Nortel/Extreme) network management.

TCP/UDP — SynOptics SNMP Trap. Receives SNMP trap notifications from SynOptics network equipment.

TCP/UDP — Meta5 protocol. Used by the Meta5 network management platform.

TCP/UDP — NETscout Control Protocol. Management protocol for NETscout (now NetScout) network monitoring and analytics systems.

TCP/UDP — Novell Netware over IP. Enables Novell NetWare protocols to operate over TCP/IP networks.

TCP/UDP — Multi-Protocol Trans. Network. Supports multiple protocol translation and transport across heterogeneous networks.

TCP/UDP — ISO Transport Class 2 Non-Control. ISO transport protocol class 2 for non-control data communication.

TCP/UDP — Workstation Solutions. Protocol for Osiris/Oracle Workstation Solutions management.

TCP/UDP — Port 401 is assigned to UPS monitoring protocol, used by UPS management software such as …

TCP/UDP — DecAp protocol. Used by DEC (Digital Equipment Corporation) for application-level communication.

TCP/UDP — Nced protocol. Network Computing Environment daemon for distributed computing management.

TCP/UDP — Ncld protocol. Network Computing Environment location daemon for service discovery.

TCP/UDP — Prospero Resource Manager System Manager. Management interface for the Prospero distributed resource management system.

TCP/UDP — Prospero Resource Manager Node Manager. Node-level agent for the Prospero distributed resource management system.

TCP/UDP — DEC Ladebug Remote Debug Protocol. Remote debugging protocol from DEC for debugging applications on remote …

TCP/UDP — SynOptics SNMP Trap (alternate). Additional trap port for SynOptics network management infrastructure.

TCP/UDP — Storage Management Services Protocol. Protocol for managing networked storage devices and volumes.

TCP/UDP — Onmux protocol. A multiplexing protocol for combining multiple data channels.

TCP/UDP — IBM Operations Planning and Control Job Start. Used by IBM mainframe job scheduling for initiating …

TCP/UDP — IBM Operations Planning and Control Job Tracking. Used for monitoring and tracking batch job execution …

TCP/UDP — SmartSDP. Smart Service Discovery Protocol for locating services on a network.

TCP/UDP — Port 427 is assigned to SLP (Service Location Protocol), used for dynamic service discovery on …

TCP/UDP — UTMPSD. UTMP Server Daemon for tracking user logins on UNIX systems.

TCP/UDP — UTMPCD. UTMP Client Daemon for querying login information from UTMP servers.

TCP/UDP — IASD. Intelligent Agent Service Daemon for distributed agent-based computing.

TCP/UDP — Mobile IP Mobile Node. Used by mobile IP nodes to maintain connectivity while roaming between …

TCP/UDP — DNA-CML. Digital Network Architecture CMIP Manager protocol for OSI network management.

TCP/UDP — DSFgw. Distributed Systems Framework Gateway protocol for cross-platform communication.

TCP/UDP — Dasp (Data Association Service Protocol). Used for managing data associations between network services.

TCP/UDP — CVC Host Daemon. Used for Concurrent Versions Control (CVC) for collaborative software development.

TCP/UDP — AS Server Mapper. Protocol for mapping services to ports on AS/400 (IBM iSeries) systems.

TCP/UDP — Cray Network Semaphore Server. Protocol for distributed semaphore management on Cray supercomputer networks.

TCP/UDP — Cray SFS Config Server. Configuration management for Cray Shared File System environments.

TCP/UDP — MACON-TCP. Protocol for the MACON network management system.

TCP/UDP — SCO Help (scohelp). Online help service for SCO UNIX systems.

TCP/UDP — Skronk protocol. A legacy protocol for networked communication.

TCP/UDP — DataRamp Server. Protocol for the DataRamp data acceleration platform.

TCP/UDP — DataRamp Server Secure. Secure variant of the DataRamp protocol with encryption.

TCP/UDP — Alpes Multicast. Protocol for multicast communication in the Alpes networking system.

TCP/UDP — SpriteMUX. Protocol for the Sprite distributed operating system networking.

TCP/UDP — IAF Server. Information Access Framework server protocol.

TCP/UDP — BGS-NSI protocol. Used for network service infrastructure management.

TCP/UDP — ULPNET. Protocol for the Universal Link Protocol network system.

TCP/UDP — Integra Software Management Environment. Protocol for managing distributed Integra software deployments.

TCP/UDP — NEST Protocol. Used for networked embedded systems communication.

TCP/UDP — MICOM-PFS. Protocol for MICOM (now Nortel) Private Frame-relay Service management.

TCP/UDP — Transport Independent Convergence for FNA. NEC timing protocol for network synchronization.

TCP/UDP — ICLPV-DM. ICL PV Data Mover protocol for bulk data transfer in ICL systems.

TCP/UDP — ICLPV-SC. ICL PV Service Controller protocol for managing ICL PV infrastructure.

TCP/UDP — ICLPV-SAS. ICL PV System Administration Server protocol.

TCP/UDP — ICLPV-PM. ICL PV Performance Manager protocol for monitoring ICL systems.

TCP/UDP — SIAM Control Port. Protocol for the SIAM (System Integration and Application Management) control channel.

TCP/UDP — Intrinsa. Protocol for Intrinsa software testing and verification tools.

TCP/UDP — CRS protocol. Used for content replication services across distributed servers.

TCP/UDP — MyNet-AS. Protocol for MyNet autonomous system management.

UDP — Syslog protocol. Centralized logging standard that collects log messages from routers, switches, servers, and other …

TCP — Port 515 is assigned to LPD/LPR (Line Printer Daemon), the traditional Unix printing protocol defined …

TCP/UDP — UTIME (Unix Time). Protocol for unixtime-based time synchronization services.

UDP — Port 520 is assigned to RIP (Routing Information Protocol), one of the oldest distance-vector routing …

UDP — Port 521 is assigned to RIPng, the IPv6 adaptation of RIP defined in RFC 2080. …

TCP/UDP — User Listener Protocol. Used for user-level event listening and notification services.

UDP — Port 525 is assigned to Timed, the BSD time server daemon. Obsolete; replaced by NTP …

TCP/UDP — Tempo / newdate. Protocol for the Tempo time and calendar service on BSD systems.

UDP — Port 533 is assigned to netwall, used for emergency broadcast messaging across Unix network segments. …

TCP/UDP — IIOP (Internet Inter-ORB Protocol). CORBA protocol for communication between distributed objects across the internet.

TCP/UDP — Opalis Rendez-Vous. Protocol for Opalis IT process automation tool rendezvous and discovery.

TCP/UDP — GNUstep Distributed Objects Mapper. Service locator for GNUstep/OpenStep distributed objects.

TCP/UDP — Apertus Technologies Load Determination. Protocol for measuring and distributing network load information.

UDP — Port 546 is assigned to DHCPv6 client, used by IPv6 hosts to receive dynamic address …

UDP — Port 547 is assigned to DHCPv6 server. A rogue DHCPv6 server can redirect traffic through …

UDP — Port 550 is assigned to new-rwho, broadcasting info about logged-in users across Unix networks. Privacy …

TCP/UDP — DeviceShare. Protocol for sharing peripheral devices across a network.

TCP/UDP — PirP protocol. Used for peer information retrieval in distributed systems.

TCP/UDP — DSFA (Distributed Services Framework Agent). Also historically associated with phAse zero trojan. Sometimes used for …

TCP/UDP — TEEDTAP. Protocol for test and educational data transfer.

UDP — Port 560 is assigned to rmonitor, used for remote monitoring of Unix system statistics. Replaced …

UDP — Port 561 is assigned to monitor, for Unix system monitoring data distribution. Completely obsolete.

TCP — Port 565 is assigned to whoami, a simple network identity verification service. Virtually unused in …

TCP/UDP — Banyan RPC. Remote Procedure Call protocol for Banyan VINES network operating system.

TCP/UDP — Microsoft Deployment. Protocol for Microsoft software deployment and management services.

TCP/UDP — Meter Demon. Protocol for network metering and usage tracking.

TCP/UDP — Meter UDP. UDP variant of the network metering protocol.

TCP/UDP — Banyan VIP. Banyan VINES Internet Protocol for routing in Banyan networks.

TCP/UDP — IPCD protocol. Inter-Process Communication Daemon for distributed process coordination.

TCP/UDP — VNAS protocol. Virtual Network Address Services for network address management.

TCP/UDP — IPDD protocol. Internet Protocol Device Discovery for finding networked devices.

TCP/UDP — DEC BSR Verification. Protocol for Digital Equipment Corporation BSR verification processes.

TCP/UDP — SNTP Heartbeat. Simple Network Time Protocol heartbeat for maintaining time synchronization status.

TCP/UDP — Bundle Discovery Protocol. Used for discovering DTN (Delay-Tolerant Networking) bundle nodes.

TCP/UDP — TNS CML. Transparent Network Substrate CMIP Manager protocol.

TCP/UDP — TPIP protocol. Transaction Processing over IP for distributed transaction coordination.

TCP/UDP — SMSD protocol. Storage Management Services Daemon for enterprise storage management.

TCP/UDP — PTC Name Service. Parametric Technology Corporation name service for CAD/PLM systems.

TCP/UDP — Aeolon Core Protocol. Protocol for the Aeolon distributed computing framework.

TCP/UDP — Sun Microsystems Inter-Process Communication port, used in early Sun RPC and distributed computing environments. It …

TCP — Reliable Syslog over TLS, standardized in RFC 5425. Provides encrypted and authenticated transport for syslog …

TCP/UDP — Cray Unified Resource Manager. Protocol for managing computational resources on Cray supercomputers.

TCP/UDP — Network Queuing System. Protocol for submitting and managing batch jobs across networked computing resources.

TCP/UDP — NPMP Trap. Network Performance Measurement Protocol trap receiver for performance event notifications.

TCP/UDP — NPMP Local. Network Performance Measurement Protocol for local node performance data collection.

TCP/UDP — NPMP GUI. Graphical user interface protocol for the Network Performance Measurement Protocol.

TCP/UDP — HMMP Indication. HyperMedia Management Protocol indication messages for multimedia resource management.

TCP/UDP — HMMP Operation. HyperMedia Management Protocol operation messages for executing multimedia management tasks.

TCP/UDP — SCO System Manager. Protocol for SCO UNIX system administration and configuration.

TCP/UDP — SCO Desktop Manager. Protocol for SCO UNIX desktop environment management.

TCP/UDP — DEI-ICDA. Digital Equipment International Integrated Cache Disk Array management.

TCP/UDP — Compaq Event Manager. Protocol for Compaq enterprise event monitoring and notification.

UDP — Intelligent Platform Management Interface (IPMI) over LAN, used by Baseboard Management Controllers (BMCs) in servers …

TCP/UDP — 3Com AMP3. Protocol for 3Com network device management and monitoring.

TCP/UDP — Internet Printing Protocol (IPP), used by CUPS and modern printers for network print job submission …

TCP/UDP — Service Status Update. Protocol for reporting the status of network services.

TCP/UDP — LAN Server. Protocol for IBM LAN Server network operating system administration.

TCP/UDP — Replication Command. Protocol for database and file replication commands.

TCP/UDP — SANity. Storage Area Network management and health checking protocol.

TCP — DHCP Failover Protocol, used between redundant DHCP servers to synchronize lease databases and coordinate address …

TCP/UDP — DTCP (Dynamic Tunnel Configuration Protocol). Protocol for dynamically configuring network tunnels.

TCP/UDP — SPMP protocol. Simple Performance Management Protocol for lightweight network monitoring.

TCP/UDP — RMC (Remote Monitoring and Control). Protocol for remote management of industrial equipment.

TCP/UDP — HAP (High Availability Protocol). Protocol for managing high-availability clusters and failover.

TCP/UDP — Sun Disaster Recovery. Protocol for Sun Microsystems disaster recovery and data replication.

TCP/UDP — VPPS-QUA. Virtual Point-to-Point System Quality Assurance protocol.

TCP/UDP — DCTP (Data Communications Transport Protocol). Protocol for reliable data transport in distributed systems.

TCP/UDP — VPPS-VIA. Virtual Point-to-Point System VIA protocol for high-performance interconnects.

TCP/UDP — GGF NCP. Global Grid Forum Network Control Protocol for grid computing management.

TCP/UDP — MRM (Multicast Routing Monitor). Protocol for monitoring and debugging multicast routing.

TCP/UDP — CORBA IIOP (Internet Inter-ORB Protocol). Standard communication protocol for distributed CORBA objects.

TCP/UDP — CORBA IIOP over SSL. Secure CORBA communication using SSL/TLS encryption.

TCP/UDP — MDC Port Mapper. Protocol for mapping services in MDC (Metadata Coalition) distributed data environments.

TCP/UDP — HCP Wiseman. Hardware Control Program management protocol.

TCP/UDP — ASip Registry. Protocol for Apple Server IP registry and service discovery.

TCP/UDP — NMAP protocol. Used by the Novell NetWare Management Agent Protocol for network management.

TCP/UDP — VATP (Velneo Application Transfer Protocol). Protocol for Velneo application server communication.

TCP/UDP — Connection Endpoint protocol. Used for managing connection endpoints in distributed systems.

UDP — Linux-HA Heartbeat protocol, used by the Heartbeat component for sending keepalive packets between cluster nodes …

TCP/UDP — RUSH protocol. A data streaming protocol optimized for rapid data delivery.

TCP/UDP — UUID Generator. Protocol for generating Universally Unique Identifiers (UUIDs) across networked systems.

TCP/UDP — Access Network. Protocol for access network management and configuration.

TCP/UDP — LMP (Link Management Protocol). Protocol for managing optical network links in GMPLS networks.

TCP/UDP — errlog copy/server daemon. Protocol for copying error log data between UNIX systems.

TCP/UDP — AgentX. SNMP subagent protocol (RFC 2741) allowing modular extension of SNMP agents.

TCP/UDP — QRJH protocol. Used for printer queuing and remote job handling.

TCP/UDP — DMS (Device Management System). Protocol for managing networked devices.

TCP/UDP — MSS (Measurement Sub-System). Protocol for network measurement and performance analysis.

TCP/UDP — Quotad. Disk quota daemon for reporting filesystem quota usage over the network.

TCP/UDP — Cycleserv. Cycle Server protocol for distributed computing workload sharing.

TCP/UDP — Omserv. Object Manager Server protocol for distributed object management.

TCP/UDP — RTIP. Real-time Internet Protocol for latency-sensitive network communication.

TCP/UDP — CycleServ2. Extended Cycle Server protocol for distributed computing management.

TCP/UDP — Submit protocol. Used for job submission in distributed computing environments.

TCP/UDP — EntOmb protocol. Enterprise Object Management Broker for distributed object brokering.

TCP — HP Performance Data Collector, used by HP OpenView and HP Operations Manager for collecting and …

TCP/UDP — FCP-UDP. Fibre Channel Protocol over UDP for storage network communication.

TCP/UDP — ITM-MCELL-S. Integrated Transaction Manager Multicell Server for distributed transactions.

TCP/UDP — NETCONF over SSH. Network Configuration Protocol over Secure Shell for managing network device configurations.

TCP — DHCP Failover Protocol secondary port, used alongside port 647 in some DHCP failover implementations for …

TCP — Network Computing Architecture (NCA) local IPC, used in DCE/RPC environments. NCA influenced the design of …

TCP/UDP — VSINET. Protocol for the VSI-NET visual simulation networking system.

TCP/UDP — MAITrd. Maintenance Daemon protocol for system maintenance and health monitoring.

TCP/UDP — BUSBOY / PUPARP. Originally PUP Address Resolution Protocol, later used by the BUSBOY service.

TCP/UDP — RFC Load Balancing. Protocol for distributing network load across multiple servers.

TCP/UDP — RFC DNET. Distributed Network protocol for legacy DECnet communication.

TCP/UDP — Port 1004 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1005 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1006 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1007 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1008 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1009 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1011 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1012 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1013 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1014 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1015 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1016 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1017 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1018 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1019 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1020 is reserved in the IANA registry. No standard service assignment.

TCP/UDP — Port 1021 is reserved in the IANA registry. Designated as an experimental port by some …

TCP/UDP — RFC Experimental Port 2. Reserved for experimental use and testing of new protocols.

TCP/UDP — RFC Experimental Port 1. The last well-known port, reserved for experimental use. Also historically associated …

TCP/UDP — Port 1024 marks the start of the registered port range, above the well-known ports (0-1023). …

TCP/UDP — Port 1025 is used by Microsoft Windows RPC services and sometimes by NFS (Network File …

TCP — Port 1099 is the default port for Java Remote Method Invocation (RMI) Registry. Java applications …

TCP/UDP — Port 1270 is used by Microsoft System Center Operations Manager (SCOM), formerly known as Microsoft …

TCP — Port 1311 is the default HTTPS port for Dell OpenManage Server Administrator (OMSA) web interface. …

TCP — Port 1500 is associated with FlexLM and VLSI Technology license managers used for EDA (Electronic …

TCP — Port 1556 is used by Veritas NetBackup for client-server communication between backup agents and the …

TCP — Port 1688 is used by Microsoft Key Management Service (KMS) for volume license activation of …

TCP — Port 1741 is used by CiscoWorks, Cisco's network management platform, for web-based administration. CiscoWorks provides …

TCP/UDP — Port 1761 is used by Novell network services for various communication tasks in legacy Novell …

UDP — Port 1900 is used by Simple Service Discovery Protocol (SSDP), the foundation for Universal Plug …

TCP/UDP — Port 1947 is used by HASP (Hardware Against Software Piracy) License Manager by Gemalto (now …

UDP — Port 1985 is used by Cisco Hot Standby Router Protocol (HSRP) for first-hop redundancy. HSRP …

TCP — Port 1998 is used by Cisco for X.25 service access in IOS-based routers. X.25 is …

UDP — Port 2055 is commonly used for Cisco NetFlow data export, a network protocol for collecting …

UDP — Port 2123 is used by GPRS Tunneling Protocol Control (GTP-C) for mobile network signaling. Mobile …

UDP — Port 2152 is used by GPRS Tunneling Protocol User Plane (GTP-U) for carrying mobile data …

TCP — Port 2375 is the Docker daemon's unencrypted REST API port, used for remote management of …

TCP — Port 2376 is Docker's TLS-encrypted remote API port, providing secure remote management of Docker daemons. …

TCP — Port 2377 is used by Docker Swarm for cluster management communications between manager nodes. Docker …

TCP — Port 2401 is used by CVS (Concurrent Versions System) pserver protocol for remote access to …

TCP — Port 2404 is used by IEC 60870-5-104, a standard protocol for telecontrol equipment in electrical …

TCP — Port 2809 is used by IBM WebSphere Application Server for IIOP (Internet Inter-ORB Protocol) communications, …

TCP — Port 2947 is the default port for gpsd, a GPS daemon that provides a shared …

TCP — Port 3268 is used by Microsoft Active Directory for the Global Catalog service, which provides …

UDP — Port 3544 is used by Teredo, a Microsoft tunneling protocol that provides IPv6 connectivity to …

TCP — Port 3632 is the default port for distcc, a distributed C/C++ compiler that spreads compilation …

TCP — Port 4505 is used by SaltStack (Salt) configuration management system for the publisher channel, through …

TCP — Port 4506 is used by SaltStack for the return channel, through which Salt minions send …

UDP — Port 4789 is the standard IANA-assigned port for VXLAN (Virtual Extensible LAN), a network virtualization …

TCP — Port 4949 is used by Munin, an open-source networked resource monitoring tool that collects metrics …

TCP — Port 5001 is used by Synology DiskStation Manager (DSM) for HTTPS management access, and by …

TCP — Port 5044 is the default port for the Elastic Beats input plugin in Logstash, the …

TCP/UDP — Port 5357 is used by Microsoft Web Services for Devices API (WSDAPI) for device discovery …

TCP — Port 5666 is used by NRPE (Nagios Remote Plugin Executor), an agent that allows Nagios …

TCP — Kubernetes API server. The central management endpoint for Kubernetes clusters, handling all API requests for …

TCP — Syslog over TLS. Encrypted version of the Syslog protocol (port 514) for secure centralized log …

TCP — Port 6556 is used by the Check MK (Checkmk) monitoring agent installed on servers being …

TCP — Port 7547 is used by TR-069 (CPE WAN Management Protocol), a standard for ISPs to …

TCP/UDP — Port 7946 is used by Docker Swarm for control plane communication between swarm nodes, including …

TCP — Port 8089 is the management/REST API port for Splunk Enterprise and Splunk Universal Forwarder. Splunk's …

UDP — Port 8125 is the default UDP port for StatsD, a network daemon that collects and …

TCP — Port 8139 is used by the legacy Puppet configuration management agent to receive catalog information …

TCP — Port 8140 is the default HTTPS port for Puppet Server (Puppet Master), the central configuration …

TCP — Port 8300 is used by HashiCorp Consul for server RPC (Remote Procedure Call) communication. Consul …

TCP — Port 8500 is the default HTTP/HTTPS port for HashiCorp Consul's web UI and REST API. …

TCP — Port 8530 is the default HTTP port for Windows Server Update Services (WSUS), Microsoft's enterprise …

TCP/UDP — Port 8649 is used by Ganglia, a scalable distributed monitoring system designed for high-performance computing …

TCP — Prometheus monitoring system web UI and API. Also used by Cockpit web console for Linux …

TCP — HP JetDirect for network printing and Prometheus Node Exporter for system metrics collection. Two common …

TCP — Port 9389 is used by Active Directory Web Services (ADWS), a Windows service introduced in …

TCP — Port 9600 is the default port for Logstash's monitoring API, which provides metrics and pipeline …

TCP — Port 9696 is used by OpenStack Neutron, the networking component of the OpenStack cloud platform. …

TCP — Used by Zabbix monitoring agent to receive requests from Zabbix server or proxy. The agent …

TCP — Used by Zabbix server or proxy to receive data from Zabbix agents and trappers. This …

TCP — Used by the Kubernetes Kubelet for the HTTPS API that the API server and other …

TCP — Default HTTP port for the Netdata real-time performance monitoring web dashboard. Provides live system metrics …

UDP — The starting destination port used by the traceroute utility to map network paths. UDP packets …

TCP/UDP — The first port in the IANA-registered dynamic and private port range (49152-65535). Operating systems use …

TCP — Gopher protocol. A pre-web internet protocol for distributing, searching, and retrieving documents. Largely replaced by …

TCP — Hypertext Transfer Protocol. The foundation of the World Wide Web, used for transmitting web pages, …

TCP — Port 81 is an unofficial alternate HTTP port used when port 80 is unavailable or …

TCP — Port 280 is assigned to http-mgmt, used for HTTP-based network device management interfaces. Exposing this …

TCP/UDP — InfoSeek. Protocol for the InfoSeek internet search engine and directory service.

TCP/UDP — Hyper-G (HyperWave). Protocol for the Hyper-G/HyperWave hypermedia information system, a precursor to modern CMS platforms.

TCP — HTTP over TLS/SSL. The encrypted version of HTTP that secures web traffic using TLS certificates. …

TCP/UDP — ContentServer. Protocol for content delivery and management in distributed environments.

TCP/UDP — HTTP RPC Endpoint Mapper. Microsoft Distributed COM (DCOM) endpoint resolution over HTTP for firewall traversal.

TCP/UDP — SCO Web Server Manager. Administration protocol for SCO UNIX web server management.

TCP/UDP — XML-RPC BEEP. XML Remote Procedure Calls over Blocks Extensible Exchange Protocol peer-to-peer framework.

TCP/UDP — SOAP over BEEP. Simple Object Access Protocol over the Blocks Extensible Exchange Protocol.

TCP/UDP — SCO Internet Manager. Administration protocol for SCO UNIX internet services configuration.

TCP/UDP — SCO WebServer Manager. Protocol for managing SCO web server configurations.

TCP/UDP — DWR protocol. Dynamic Web Resource protocol for managing web content.

TCP/UDP — URL Rendezvous. Protocol for URL-based service rendezvous and discovery.

TCP/UDP — Hyperwave ISP. Protocol for the HyperWave Information Server Platform content management.

TCP/UDP — WPAGES. Web Pages protocol for early web content distribution.

TCP/UDP — Multiling HTTP. Multilingual HTTP protocol supporting international character sets.

TCP/UDP — WPGS protocol. Web Publishing and Graphics System protocol.

TCP/UDP — WPJT protocol. Web Publishing Job Tracker for managing web content publication workflows.

TCP — CCProxy HTTP proxy service, popular in small offices for sharing internet connections. Open instances are …

TCP — Adobe Flash Player cross-domain policy server. Entirely obsolete following Adobe's end-of-life of Flash Player in …

TCP — Samba Web Administration Tool (SWAT), deprecated in Samba 4.0 and removed in 4.1 due to …

TCP — Webpush, an early proprietary web push service predating modern browser push notification infrastructure (Web Push …

TCP — Surf, a lightweight web content delivery protocol proposed as an alternative to HTTP for embedded …

TCP — Port 2077 is used by cPanel & WHM web hosting control panel for WebDAV file …

TCP — cPanel web hosting control panel (HTTP). Provides a web-based interface for managing websites, domains, email …

TCP — cPanel web hosting control panel (HTTPS). Encrypted version of the cPanel management interface for securely …

TCP — Port 2086 is used by cPanel's Web Host Manager (WHM) for HTTP administrative access. Hosting …

TCP — Port 2087 is the secure HTTPS version of cPanel's Web Host Manager (WHM) administrative interface. …

TCP — Common development server port. Used by default by Node.js (Express), Ruby on Rails, Grafana, and …

TCP — Port 3001 is commonly used by Grafana (an open-source monitoring and analytics platform) as an …

TCP — Port 3128 is the default port for Squid, a widely used caching and forwarding HTTP …

TCP — Common alternative HTTPS port. Used by various applications as an alternative TLS port, including Pharos …

TCP — Port 4848 is the default administrative console port for Oracle GlassFish Server, a Java EE …

TCP — Used by UPnP (Universal Plug and Play) for device discovery and by many development frameworks …

TCP — Port 5601 is the default port for Kibana, the visualization and analytics frontend of the …

TCP — Port 6081 is used by Varnish Cache, a high-performance HTTP reverse proxy and caching accelerator, …

TCP — Port 7001 is used by both Apache Cassandra for TLS-encrypted internode communication and Oracle WebLogic …

TCP — Common alternative HTTP port. Used by Django development server, Python http.server, and many web application …

TCP — Port 8006 is the default HTTPS port for the Proxmox Virtual Environment (PVE) web management …

TCP — Port 8008 is an alternate HTTP port used by various applications and is the local …

TCP — Port 8009 is the default port for Apache JServ Protocol (AJP), used to proxy requests …

TCP — Port 8069 is the default HTTP port for Odoo (formerly OpenERP), a comprehensive open-source ERP …

TCP — HTTP proxy and alternative HTTP port. Widely used for web proxies, development servers, application servers …

TCP — Port 8081 is a widely used alternate HTTP port for web servers, development tools, and …

TCP — Port 8090 is the default HTTP port for Atlassian Confluence Server, a widely used team …

TCP — Alternative HTTPS port. Used by Apache Tomcat for HTTPS, Plesk control panel, and many web …

TCP — Port 8880 is used by IBM WebSphere Application Server as an alternate HTTP transport port. …

TCP — Alternative HTTP port commonly used by Jupyter Notebook, XAMPP, and various web-based development and administration …

TCP — Used by PHP-FPM (FastCGI Process Manager) for PHP processing, Portainer for Docker management, and SonarQube …

TCP — Port 9003 is commonly used by Puma, the Ruby web server, and various custom applications …

TCP — Port 9043 is the default HTTPS administrative console port for IBM WebSphere Application Server. It …

TCP — Port 9080 is the default non-HTTPS HTTP transport port for IBM WebSphere Application Server, used …

TCP — Port 9443 is a popular alternate HTTPS port used by various administrative consoles and web …

TCP — Webmin web-based system administration tool. Provides a browser interface for managing Unix/Linux servers, configuring services, …

TCP — An alternate HTTPS port used by various applications and management interfaces when the standard port …

TCP — An alternate HTTPS port used by various network and security appliance management interfaces. Found in …

TCP — An alternate HTTP port historically used by Apache HTTP Server and Apple Mac OS X …