Recently, we've had a player who was supposedly hacked, however, since then, they have logged into the server, changing the IP to their own again, so i cannot use /seen or /whois is there a command to show all IP's a player has connected from or a log of it?
That is an option, however the player has never broken, and is actually a relative of a staff member, so as far as we can tell, their account was actually gotten into somehow. I would like to avoid banning them if possible.
When someone would make claims like that, I would just search thru my server.log backups and find all of the IPs they used to log in from. Most of the time, they would all be the same.