This might be a very lame question but please pardon me as I'm a newbie... I have 1 user ("testuser") who must be able to log into 3 ubuntu servers via SSH (PuTTY) using a private key (no password). The user has been added on all 3 servers. Is it possible to make it so that testuser has only 1 private key that works on all 3 servers?
Thanks a lot.