Uses for ~/.ssh/config

“For system and network administrators or other users who
frequently deal with sessions on multiple machines, SSH ends up
being one of the most oft-used Unix tools. SSH usually works so
well that until you use it for something slightly more complex than
starting a terminal session on a remote machine, you tend to use it
fairly automatically. However, the ~/.ssh/config file bears
mentioning for a few ways it can make using the ssh a client a
little easier.

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