Skip to content

troubleshoot.md

Latest commit

 

History

History
32 lines (24 loc) · 1.36 KB

troubleshoot.md

File metadata and controls

32 lines (24 loc) · 1.36 KB

Can't open /dev/net/tun

Ref: https://www.kernel.org/doc/html/latest/networking/tuntap.html Exerpt:

mkdir /dev/net (if it doesn't exist already)

mknod /dev/net/tun c 10 200

chmod 0666 /dev/net/tun

There’s no harm in allowing the device to be accessible by non-root users, since CAP_NET_ADMIN is required for creating network devices or for connecting to network devices which aren’t owned by the user in question.

linux real network device has lots of extra inet6 after setting default route to created tunnel, causes ping google.com to send lots of DUP! responses

Restart network adapter on ubuntu: sudo /etc/init.d/network-manager restart

linux set tunnel as default route

sudo route add default gw 10.0.0.1 tun0 replace 10.0.0.1 with ip of tun0 replace tun0 with the ifname of your tunnel

vscode c++ format remove newline before open bracket

Reference: https://stackoverflow.com/a/50606364/8112809 In root object of .vscode/settings.json "C_Cpp.clang_format_fallbackStyle": "{ BasedOnStyle: Google }",

Possibly also: "C_Cpp.vcFormat.newLine.beforeOpenBrace.namespace": "sameLine", "C_Cpp.vcFormat.newLine.beforeOpenBrace.type": "sameLine", "C_Cpp.vcFormat.newLine.beforeOpenBrace.lambda": "sameLine", "C_Cpp.vcFormat.newLine.beforeOpenBrace.function": "sameLine", "C_Cpp.vcFormat.newLine.beforeOpenBrace.block": "sameLine",