Using SSH through proxy

If the system that you are using use a local proxy for the outgoing connections, your SSH connections will be rejected without any additional configuration.

In my case I would like to use github and gitlab upstreams through the SSH connection, so I can push my changes.

It could be more solutions, but the one indicated here require nc tool installed in your system, and some changes to ~/.ssh/config file.

• Install nc in fedora by: run0 dnf install -y nc
• Open ~/.ssh/config and add the configuration below:

Host github.com
    ProxyCommand  nc --proxy-type http --proxy <proxy-host-or-ip>:<proxy-port> %h %p

Host gitlab.com
    ProxyCommand  nc --proxy-type http --proxy <proxy-host-or-ip>:<proxy-port> %h %p

NOTE Change <proxy-host-or-ip> by the address of your proxy, and <proxy-port> by the port where your proxy is listening.

If the number of hosts is small, I recommend to keep the list specific so you can block any outgoing connection to other hosts you don't know that your system is connecting to.

Wrap up!

We have have seen how we can use nc to use proxy connections to our git repositories when we have network restrictions.

Happy coding! :)