/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 Server Team, which is subscribed to openssh in Ubuntu. https://bugs.launchpad.net/bugs/743858 Title: sshd not appending to /var/log/btmp -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs