Use PAM's cracklib module on the "passwd" command. That's what it's for.
On Ubuntu, should involve uncommenting the following line in /etc/pam.d /common-password: # password required pam_cracklib.so retry=3 minlen=6 difok=3 Definitely not a ssh bug (ssh should not be in the business of locking users out because their password isn't great), so I'm going to close this out, unless someone can find (a) a reason this is a bug, and (b) a target for it (or assign to Ubuntu). -- Small password should not log in https://bugs.launchpad.net/bugs/31969 You received this bug notification because you are a member of Ubuntu Bugs, which is a direct subscriber. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs