Using multiple github accounts with ssh keys

using-multiple-github-accounts-with-ssh-keys.md

From https://gist.github.com/oanhnn/80a89405ab9023894df7

Problem

I have two Github accounts: defaul for work and personal. I want to use both accounts on same computer via git ssh (without typing password everytime, when doing git push or pull).

Solution

Use ssh keys and define host aliases in ssh config file (an alias per account).

How to?

1. Generate ssh key pairs for accounts and add them to GitHub accounts.

2. Edit/Create ssh config file (~/.ssh/config):

   # Default github account
   Host github.com
      HostName github.com
      IdentityFile ~/.ssh/id_rsa
      IdentitiesOnly yes
      
   # Other github account: superman
   Host github-personal
      HostName github.com
      IdentityFile ~/.ssh/personal_id_rsa
      IdentitiesOnly yes
   

3. Add ssh private keys to your agent:

   $ ssh-add ~/.ssh/oanhnn_private_key
   $ ssh-add ~/.ssh/superman_private_key

4. Test your connection

   $ ssh -T git@github.com
   $ ssh -T git@github-personal

5. Now all are set, just clone your repositories using github alias github-personal

   $ git clone git@github-personal:pavelfomin/spring-boot-rest-example.git