If you use Secure Shell to log into remote Linux servers throughout the day, you should consider using a config file to make your life easier. Here's how.

You could put the name in your /etc/hosts file, or you could set up a local DNS server, but you can also solve this problem using ssh's config file. To create an ssh config file execute the commands: ...

And that’s all there is to creating a script to run a command on multiple hosts defined in your SSH config file.

SSH known hosts store server fingerprints to prevent security risks. Learn how to use SSH known host commands to manage entries on Linux systems.