In doing some testing, I enabled and disabled anonymous access in SharePoint 2010 for the SharePoint- 80 web application. During the course of that, I created a new internet "zone". After testing, I deleted that application pool extension (and that extension only)...not surprisingly, none of my links, libraries, lists, documents etc. work...they all appear, but when you click on any file, it is "not found". You can completely navigate the site- again, everything is there but you just can't get to it. Search also does not work externally. It allows you to use search, but doesn't return any results.
I was very careful to only delete the "Internet" zone that I created- and leave the SharePoint- 80 alone. I don't think I've "lost" any data- I think I've just really gummed up the permissions for logging in EXTERNALLY.
If I'm in the the domain, everything works fine- it's when I try to login from outside that the issues begin.
What do I need to check?