If you’re forever typing in long ssh commands to get into your servers – here’s a handy shortcut.

$ ssh laudanum@wainui.houseoflaudanum.com -p2222
Translates to
$ ssh wainui

Using this config file.
$ less ~/.ssh/config
Host wainui
HostName wainui.houseoflaudanum.com
User laudanum
Port 2222
IdentityFile ~/.ssh/id_rsa