Attempting something like git clone git://github.com/ry/node.git
will not work, it results in:
Initialized empty Git repository in /home/robert/
Another option which not involving touching git config is to change the ssh settings to use port 443 instead of the regular 22 port.
Reference: Using SSH over the HTTPS port
From that article:
edit the file at ~/.ssh/config, and add this section:
Host github.com
Hostname ssh.github.com
Port 443
Afterward, I was able to successfully git push to Github. At home you can change back ssh config to the way it was if you want.