gitlab SSH configuration ¶

Description ¶

https://docs.gitlab.com/ee/ssh/

GitLab uses the SSH protocol to securely communicate with Git.

When you use SSH keys to authenticate to the GitLab remote server, you don’t need to supply your username and password each time.

Supported SSH key types ¶

To communicate with GitLab, you can use the following SSH key types:

ED25519
RSA
DSA (Deprecated in GitLab 11.0.)
ECDSA (As noted in Practical Cryptography With Go, the security issues related to DSA also apply to ECDSA.)

ED25519 SSH keys ¶

The book Practical Cryptography With Go suggests that ED25519 keys are more secure and performant than RSA keys.

OpenSSH 6.5 introduced ED25519 SSH keys in 2014 and they should be available on most operating systems

SSH keys ¶

~/.ssh/config ¶

cat ~/.ssh/config

            # noamsw@pm.me account
Host gitlab.com-noamsw
   HostName gitlab.com
   PreferredAuthentications publickey
   IdentityFile ~/.ssh/id_ed25519_noamsw

# pvergain@pm.me account
Host gitlab.com-pvergain
   HostName gitlab.com
   PreferredAuthentications publickey
   IdentityFile ~/.ssh/id_ed25519_pvergain_pm_me

           

~/.ssh ¶

            tree -L 3 ~/.ssh
    /home/pvergain/.ssh
    ├── config
    ├── id_ed25519
    ├── id_ed25519_noamsw
    ├── id_ed25519_pvergain_pm_me
    └── known_hosts

           