I have two computers connected to the same subnet.
The first (A) is running 14.04, the second (B) 12.04
I can ssh from the first to the second, but not from the second to the first.
Don't really know where to start to figure out why there's this difference.
However nmap is giving quite different results:
Computer (A), which is the one I can't get into:
PORT STATE SERVICE 631/tcp open ipp
Computer (B), which I can get into:
PORT STATE SERVICE 22/tcp open ssh 53/tcp open domain 139/tcp open netbios-ssn 445/tcp open microsoft-ds 631/tcp open ipp
Since the only port that's open on both is 631, I've tried ssh'ing from B to A specifying port 631, but that doesn't work either.
Could anybody please advise how to proceed?