SSH config for public key authentication with GitHub

ssh-config

# File: .ssh/config
# SSH config for public key authentication with GitHub (SSH or HTTPS)

# Alternative 1: Regular (SSH)
# -----------------------------------------------------
# You can check if your network allows you to use port 22
# by testing if you can access http://portquiz.net:22
Host github.com
    User git
    Hostname github.com
    PreferredAuthentications publickey
    IdentityFile /Users/larserik/.ssh/id_rsa

# Alternative 2: Wrapping SSH in HTTPS
# -----------------------------------------------------
# This option is suitable when your network has blocked
# network requests over port 22.
Host github.com
    User git
    Hostname ssh.github.com
    Port 443
    PreferredAuthentications publickey
    IdentityFile /Users/larserik/.ssh/id_rsa