Recently, I've encountered situations where I need to work with multiple git repositories from different sources. This often includes interfacing with repositories on both GitHub and Azure DevOps. Without the proper setup, I encounter generic errors in git, especially when trying to clone new repositories.
I primarily use SSH keys to manage authentication with these services. To streamline the process, it's useful to configure the ~/.ssh/config file to point each host to the appropriate key. Below is an example that you can use for your own configuration.
Host github.com
AddKeysToAgent yes
UseKeychain yes # mac only
IdentityFile ~/.ssh/github
HostName github.com
Host bitbucket.org
AddKeysToAgent yes
UseKeychain yes # mac only
IdentityFile ~/.ssh/bitbucket
HostName bitbucket.org
Host vs-ssh.visualstudio.com
AddKeysToAgent yes
UseKeychain yes # mac only
IdentityFile ~/.ssh/your-azure-devops
HostName vs-ssh.visualstudio.com
IdentitiesOnly yes
PubkeyAcceptedAlgorithms +ssh-rsa
HostkeyAlgorithms +ssh-rsa
Host ssh.dev.azure.com
HostName ssh.dev.azure.com
User git
AddKeysToAgent yes
UseKeychain yes # mac only
IdentityFile ~/.ssh/your-azure-devops
IdentitiesOnly yes
PubkeyAcceptedAlgorithms +ssh-rsa
HostkeyAlgorithms +ssh-rsa
Enjoy!