<p>i've restricted port 22 to a chosen few IP's, and run an additional ssh on another port that has different restrictions. i'd love if i could do both with just one instance, did i miss something?</p>
<p>the problem with multiple instances is with yum updates. at first i had a customized /etc/init.d/sshd that started both instances, but every ssh update would replace it. now i have a second start script for the second port, but still, ssh updates kill both and only restart port 22. what is a better solution?</p>