Running debian jesse in a vbox vm on a Solaris host I have what seems like an unusual problem with root login on this host.
I've done the normal things one does to allow root login; that is, add PermitRootLogin yes to /etc/ssh/sshd_config Restart ssh, and in fact this host has been rebooted a few times since adding that Permit line. I set sudo up to work with no passwd for a certain user long ago and so I was able to redo root passwd just to make sure there wasn't some error there. Still, I cannot login as root user I don't mean at the main login screen one gets on bootup, but from an xterm in a running session. Of course, checked to see if Caps lock was on... I'm fresh out of ideas as to what else to do here. The log shows: Jun 11 14:50:55 d2 sshd[2830]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=d.local.lan user=root Jun 11 14:50:57 d2 sshd[2830]: Failed password for root from 127.0.0.1 port 54522 ssh2