4/5     Problem: sshd acting weird. Platform: Linux 2.6.x. Symptoms: Ssh
        connection got stuck all of a sudden. Cannot ssh into the machine.
        Ping ok, and apache2 apparently working. Console log-in takes +5 min &
        nothing weird in /var/log/*.log. Restarted sshd a few times, no luck.
        Restarted the machine, everything's normal. Two hours later, sshd
        is weird again. Same symptoms. What are some possible culprits?
        \_ NIS or NFS?
        \_ Hmm... any chance you have a bad disk?  sshd's virtual memory is
           writing to bad blocks, which causes it to run very slow?  Or the
           blocks where your auth.log or something else that gets written to
           on login? -dans