If you wish you could use friendly names to access your servers, here’s how to do it:
Edit your ~/.ssh/config and add the following:
Host myserver HostName 123.123.123.123 Port 12345 User bob Host other_server HostName test.something.org User alice CheckHostIP no Cipher blowfish
Please, remember to customize “HostName” and “User” values to your needs. 🙂