Archiv für die Kategorie ‘ssh’

Use magit with SOCKS proxy

23. Februar 2016 Keine Kommentare

Sometimes it is necessary to use git in places where it’s blocked by overzealous firewalls. Instead of a successful push you end up with this:

ssh: connect to host port 22: Connection timed out
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

A known way to overcome this problems is tunneling a traffic through an external server with SOCKS protocol over SSH using tsocks, possibly with autossh instead of regular ssh to make a connection permanent, for example:

autossh -M 15000 home -D 12000

In this example home is a name of our external server configured in ~/.ssh/config. We tell autossh to listen on port 15000 and create SOCKS proxy on port 12000 – these are not privileged ports so we don’t need sudo. To actually use SOCKS we need tsocks. First we need to tell tsocks what’s address and a port of our SOCKS proxy. Add this to /etc/tsocks.conf:

server =
server_port = 12000

Using tsocks is very simple – just put it before every command you want to tunnel like this:

tsocks git push

Now how to make magit use git in conjunction with tsocks? It’s not correct to do this:

(setq magit-git-executable "tsocks git")

When pushing with magit:

Searching for program: no such file or directory, tsocks git

The problem is that magit will look for a program „tsocks git“ which of course does not exist. What we need to do is to wrap git inside a shell script and call tsocks in it. For example, make ~/bin/tgit with the following contents:

#!/usr/bin/env sh

tsocks git "$@"

Now tell magit to use it:

(setq magit-git-executable "~/bin/tgit")

That’s it – now it’s possible to use magit comfortably as usual.

Kategoriengit, magit, networking, proxy, socks, ssh Tags: