The Server 3 app that comes with Yosemite (aka Yosemite Server if you’re a Yosemite Sam fan) is great. But when you go making changes to some things, you’re just going to cause problems, sometimes something as simple as just upgrading to the latest and greatest version of Server… I know, you’ve been told that host name changes and IP changes are all kinds of OK at this point; “look, Charles, there’s a button!” Well, go ahead, click it. Don’t mind me, you might just be alright. But then again, you might not… And upgrades that use a migration wizard… Um, when it works it’s a thing of beauty. But…