Deleting known SSH Hosts on UNIX

Using terminal, go to /Users/Username/.ssh [code]cd /Users/John/.ssh[/code] Open the known_hosts file with a text editor of your choice [code]vi know_hosts[/code] Each line here is a host that has been permenantly registered on your machine. Delete the line that belongs to the unnecessary host. Tip: In VIM, dd is the shortcut to delete the entire line.

Cheers -l

PS. Life tip: To exit VIM, make sure you are in command mode by clicking ESC [escape] button on your keyboard/touch bar and type the following: [code]:wq[/code]