How to Find Out Which SSH Key Was Used to Login
Check who logged to linux machine
Inspect-keys
Bash Session
$ ssh-keygen -l -f ~/.ssh/authorized_keys
256 SHA256:wXXXXXXXXXXXXXXXXXXXXXXWiK9MRm6OhgE durbok (ED25519)
2048 SHA256:JQgAXXXXXXXXXXXXXXXXXXXy2np3hxcs [email protected] (RSA)