github ssh

$ clip < ~/.ssh/id_rsa.pub

# paste onto github settings-- ssh keys

# test ssh connection to github with 443 port

$ ssh -T -p 443 git@ssh.github.com

# new/edit  ~/.ssh/config 覆盖您的 SSH 设置以强制与 GitHub 的任何连接均通过该服务器和端口运行

Host github.com
  Hostname ssh.github.com
  Port 443

# test

$ ssh -T git@github.com