I am going to take the web server down for about 1/2 hour tonight do back it up prior to starting an update to Ubuntu 16.04.1.  I’ve got 16.04.1 working on several other servers and so far now it has been stable.

     I am also having issues with mysql on this machine that I need to investigate further.  It occasionally is going off into lala land where it is still running but does not respond.