A customer stuck due to a hurricane who needed SSH
fwiw, in the “Port” directive in sshd_config you can just add another port number declaration and SSHd <i>will listen </i>on both ports.<p><pre><code>     Port 22 
     Port 80
</code></pre>
Much cleaner than iptables magic; though I have done similar iptables redirects before it is almost always a bad idea. :)