Originally Posted by Raakh
Change the yes to no and remove the '#' at the beginning of the line so that it reads:
If you are concerned about security, why should you login as root? You explicitly told ssh to not permit root login. If you don't want this feature enabled, you have to do a step back and reset this flag to "yes". Anyway, I suggest to keep it as you've already set, since root is the only and unique known user to all Unix systems (the first to hit by huge SSH attacks).