Question

I would like to access (clone/push/pull) a private (via ssh) git repository while behind a corporate firewall that only allows http proxy access. I have written a robust Java (daemon) program (based on the JSCh class library) that will allow me to leverage local and remote port forwarding and I am hoping to leverage this but my brain hurts when I try to envision how to set this up.

The git repo depot (to coin a phrase) is at foo.server.com/var/git so the natural inclination, ignoring the fireall, to set up a clone would be:

$ git clone ssh://foo.server.com/var/git/myrepo.git

but the firewall will block this command. I m inclined to try something like

$ git clone ssh://localhost:8022/var/git/myrepo.git

where localhost:8022 is forwarded to foo.server.com:22

So is this path worth pursuing? Is there any easier solution that is still secure? Are there pitfalls or gotchas I should be aware of?

Answer 1

Can you get a normal ssh (command-line) session going? If so, git should also work.

When using ssh, git should pick up your configuration options in .ssh/config. If that is not enough, you can point the environment variable GIT_SSH at a modified version of ssh (or shell script wrapper).

Answer 2

Using socat and a .ssh/config like this:

Host=foo.server.com
ProxyCommand=socat - PROXY:your.proxy.ip:%h:%p,proxyport=3128,proxyauth=user:pwd

You should be able to ssh to foo.server.com and

git clone ssh://foo.server.com/var/git/myrepo.git

is expected to work.

Answer 3

This is my setup working under a Linux machine (localhost on port 18081 is a proxy).

cat ~/.ssh/config
Host  github.com
  User git
  ProxyCommand nc -x localhost:18081 -Xconnect %h %p

Answer 4

When you do git clone http://example.com/gitproject.git or git clone https://example.com/gitproject.git, you re using the HTTP/HTTPS protocol.

Git respects http_proxy and https_proxy envrionment variables, so you can simply execute the following command in a shell:

export http_proxy=socks5://localhost:1080 https_proxy=socks5://localhost:1080

After that, your git command under the same shell will use the proxy for HTTP/HTTPS connections.

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