For various reasons I have two account with github.com. One for work and one for personal. If you find yourself in a similar scenario and you use ssh access to gihub then this article may provide a useful way to organize your world.
If you haven’t already done so, go ahead and generate ssh keys for each account on your machine. If you have them setup already, name them something descriptive so you can tell them apart. From here on I’m going to refer to “workuser” and “personaluser” as the two github usernames, replace them with your actual usernames or something else meaningful.
Now configure ssh to know how to use the correct key
Add the following
Host github.com HostName github.com User git IdentityFile ~/.ssh/github.com-workuser-id_rsa Host personaluser.github.com HostName github.com User git IdentityFile ~/.ssh/github.com-personaluser-id_rsa
Note in this case we’re making our work account the “default” account by using “Host github.com”. This means when you copy the clone links from github It’ll Just Work (tm). For your personal repos you’ll need to modify the hostname to “personaluser.github.com”
Modify hosts for existing repos
If you have existing checked out repos for your personal account you’ll need to modify the config for that repo
cd path/to/my-repo vim .git/config
modify the references to github.com to be personaluser.github.com, E.G.
... [remote "origin"] url = email@example.com:jontodd/jontodd.github.io.git fetch = +refs/heads/*:refs/remotes/origin/* ...
Of course you can choose to make your personal account be the default or have no default by changing the Host configuration of your work account in your ~/.ssh/config.
Clear your ssh context
Test personal account
$ ssh -T firstname.lastname@example.org Hi personaluser! You've successfully authenticated, but GitHub does not provide shell access.
Test work account
$ ssh -T email@example.com Hi workuser! You've successfully authenticated, but GitHub does not provide shell access.
That’s it! If you run into trouble with ssh take a look at github’s ssh help