Comment 2 for bug 617515

As far as I can tell, I don't see anything in the maintainer scripts or upstart job that respects the existing rc settings upon upgrade.

It seems that it would be a worthy tool, and not hard to do, to run something that will modify the upstart job to start on the same run levels as the rc settings during the postinst script.

One way to disable it is to simply edit /etc/init/ssh.conf to 'start on never'

Of course, if something generates a 'never' initctl event, ssh will start.