qlawmarq/How_to_switch_between_multiple_GitHub_accounts_via_ssh.md

## How_to_switch_between_multiple_GitHub_accounts_via_ssh.md

      
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              How_to_switch_between_multiple_GitHub_accounts_via_ssh.md
            
          
    How to switch between multiple GitHub accounts via ssh

Generate a new SSH key

Open Terminal, and create SSH keys for each accounts.
ssh-keygen -t ed25519 -C "your_email@example.com"
Please create different keys for each accounts.
> Enter a file in which to save the key (/Users/you/.ssh/id_ed25519): /Users/you/.ssh/id_ed25519
> Enter a file in which to save the key (/Users/you/.ssh/id_ed25519): /Users/you/.ssh/id_ed25519_sub
After that, SSH keys is generated in  ~/.ssh/.
This type of key (~/.ssh/id_ed25519) is a secret key and should not be shared.
Also, this type of key (~/.ssh/id_ed25519.pub) is a public key and you can share it to others.
ls ~/.ssh
id_ed25519	id_ed25519.pub
For more info:
https://docs.github.com/en/authentication/connecting-to-github-with-ssh/generating-a-new-ssh-key-and-adding-it-to-the-ssh-agent
Remove SSH known_hosts (Optional)

If you have already connected to Github via SSH, delete known_hosts.
rm -rf ~/.ssh/known_hosts
Add public key to GitHub

Copy the public key to clipboard.
pbcopy < ~/.ssh/id_ed25519.pub
And add it to the following:
https://github.com/settings/keys
Repeat this for each account, using a different public key.
Create SSH config

If the config does not exist, create it.
touch ~/.ssh/config
vim ~/.ssh/config 
And, list configs for each accountm like so:
Host github-main
  HostName github.com
  IdentityFile ~/.ssh/id_ed25519
  IdentitiesOnly yes
  User git

Host github-sub
  HostName github.com
  IdentityFile ~/.ssh/id_ed25519_sub
  IdentitiesOnly yes
  User git

Connect SSH

Finally, make an SSH connection with different configs for each account.
ssh -T github-main
ssh -T github-sub
Make sure to use SSH instead of HTTPS, and also make sure to use the name you entered in the config.
BAD EXAMPLE ❌
git clone https://github.com/your_account/repo_name.git
git clone git@github.com:your_account/repo_name.git
CORRECT EXAMPLE ⭕️
git clone git@github-main:your_account/repo_name.git
git clone git@github-sub:your_account/repo_name.git