A DHT crawler based on Kademlia/Tornado, written in Python, the code is very simple.

1. tornado
2. bencode

1. python simDHT.py

1. ps aux | grep simDHT.py
2. kill -9 PID

1. kademlia/constants.py

1. iptables -A INPUT -p udp -m limit --limit 500/s --limit-burst 1000 -j RETURN
2. iptables -A INPUT -p udp -j DROP

1. infohash is saved in the infohash.log.
2. Please on the server running simDHT with a public IP.