We have an issue with Ubuntu 18.04.02 LTS.
We are trying to add domain and we can't.
Feb 18 09:32:26 nginx sshd[8383]: pam_unix(sshd:auth): authentication failure; logname= uid=0 euid=0 tty=ssh ruser= rhost=::1 user=user17 Feb 18 09:32:26 nginx sshd[8383]: pam_sss(sshd:auth): authentication success; logname= uid=0 euid=0 tty=ssh ruser= rhost=::1 user=user17 Feb 18 09:32:26 nginx sshd[8383]: pam_sss(sshd:account): Access denied for user user17: 4 (System error) Feb 18 09:32:26 nginx sshd[8383]: Failed password for user17 from ::1 port 55910 ssh2 Feb 18 09:32:26 nginx sshd[8383]: fatal: Access denied for user user17 by PAM account configuration [preauth] 1 Answer
The problem was the parameter in /etc/ssh/sshd_config: Change :
UsePAM no to:
UsePAM yes And
systemctl restart sshd.service
