如何使git clone与ssh一起使用？

Question

I am a gitnewbie trying to clone my githubrepo with ssh. I followed these steps: https://help.github.com/articles/generating-an-ssh-key/ .

Working in a proxy environment so got a gut feeling it might be related to this. When I go:git clone git@github.com:myuser/myrepo.git, i get this error:

ssh: connect to host github.com port 22: Connection timed out

How can I fix this error?

Answer 1

You can fix it the same way you'd fix any ssh problem. Remove Git from the equation and just try to log in using ssh. If it works you should see something like this.

$ ssh git@github.com
PTY allocation request failed on channel 0
Hi schwern! You've successfully authenticated, but GitHub does not provide shell access.
Connection to github.com closed.

If it doesn't work, you need to debug your ssh session. Usually you do this by using ssh -v (and you can add more -v 's for more verbosity).

$ ssh -v foo@example.com
OpenSSH_7.1p2, OpenSSL 1.0.2e 3 Dec 2015
debug1: Reading configuration data /opt/local/etc/ssh/ssh_config
debug1: Connecting to example.com [93.184.216.34] port 22.

If it hangs at this point, the either you can't connect to the host at all, or it doesn't have an ssh server listening on port 22, or the port is blocked by a firewall.

Since this is Github which definitely has an ssh server and is working for me, I suspect the last one: you're behind a firewall. You can test this by trying to ssh to somewhere else.

In that case either use a VPN to get around the firewall, or try using an HTTPS connection instead.

git clone https://github.com/myuser/myrepo.git