Wiki online!

Figured it out...elementary mistake.  There was still one of the DC's in resolv.conf.  Finally discovered this when I saw that the httpd access_log was not updating even though I'd just refreshed the wiki page.  Well, discovered in the sense that it ruled out httpd/php errors/issues, and I had already ruled out the mysql back-end.  So figured had to be network-related somehow.

Thankfully re-pointing everything was a simple affair with Astaro - just re-number the Nagios server object's IP.

Anyways...now just have to get a solid backup routine going for all the pertinent areas:

Wiki:
 - /srv/mediawiki/*
 - /etc/php.ini
 - /etc/httpd/*

mysql:
 - DB backups
 - /etc/my.cnf

nagios:
 - The entire VM, really.

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