Please, ignore this bug. The configuration file was wrong. Adding these lines to /etc/ssh/sshd_config makes my daemon works again.
ChallengeResponseAuthentication yes PasswordAuthentication yes Sorry. -- openssh-server does not recognize keyboard interactive authentication https://bugs.launchpad.net/bugs/120311 You received this bug notification because you are a member of Ubuntu Bugs, which is the bug contact for Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs