Using multiple SSH keys for Github and Github enterprise

Looking to configure multiple SSH keys on the same computer? For instance to use a different SSH key for your public and enterprise Github contributions.

This quick little post will show you how to do that.

Steps

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In this I’m assuming you already have an SSH key setup for your enterprise Github account.

1. Create a new SSH key and add it to the ssh-agent
2. Update your ~/.ssh/config file and add a new host:

Host *
  AddKeysToAgent yes
  UseKeychain yes

Host github.com
  IdentityFile ~/.ssh/id_github_rsa
  UseKeychain yes

Host github.mycompany.com
  IdentityFile ~/.ssh/id_rsa
  UseKeychain yes

I’m explicitly defining each host, but you could also assign a SSH key to all remaining hosts using Host *.

That’s it!

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