/var/log/auth.log shows bad login attempts and I'd actually never heard of lastb, but confirmed that in natty btmp is not updated with bad login attempts from ssh.
** Changed in: openssh (Ubuntu) Status: New => Confirmed ** Changed in: openssh (Ubuntu) Importance: Undecided => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/743858 Title: sshd not appending to /var/log/btmp -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs