Using Github with two accounts

By Dan Aukes

Instructions

  1. Create a new, separate key for each github account

    follows this tutorial: https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent

    ssh-keygen -t ed25519 -C "your_email@example.com"

    and follow the prompts. USE A PASSPHRASE. Or do it in one line, with filename and passphrase supplied

    ssh-keygen -t ed25519 -C "user1_email@corporate.com" -f /the/path/to/user1_github_key -N my_passphrase_here
ssh-keygen -t ed25519 -C "user2_email@personal.com" -f /the/path/to/user2_github_key -N my_passphrase_here

  2. Add each key to each github account

    Uses: https://help.github.com/articles/adding-a-new-ssh-key-to-your-github-account/

    1. Log in
    2. Go to profile–>settings–>“SSH and GPG keys”–>“Add New”
    3. Give it a name (like the filename you created) and paste in the public key
    4. Repeat adding each key to each github account

  3. Create/edit your ~/.ssh/config file

    Note: I have the following settings at the top of my config file to make it more secure:

    AddKeysToAgent yes

Host *
   IdentitiesOnly yes
   PreferredAuthentications publickey 
   #...and other settings

    Then I add the following. To ensure the gitman package is setup correctly, make sure user1 and user2 are your actual github usernames

    Host user1.github.com
   HostName github.com
   User git
   IdentityFile /the/path/to/user1_github_key

Host user2.github.com
   HostName github.com
   User git
   IdentityFile ~/the/path/to/user2_github_key

External References: