So I decided to give the oVirt virtualization platform a shot again today since in order for me to run VMWare ESX I'm going to need to drop $100+ on a new raid controller and I just don't have that right now.
This involved loading Fedora Core 18 which was easy enough and once I got things rolling with the oVirt installation using the All-In-One option shown here (after you install the RPM, read the how to's around the net, this isn't meant to be a full blown installation post):
yum install ovirt-engine-setup-plugin-allinone
In going through the setup documentation it was fairly straight forward and everything went smooth until I configured the oVirt engine. That's when out of nowhere I lost DNS resolution. I was able to ping, I was able to use dig but I could NOT resolve DNS. The way that I was able to fix this was to manually add the DNS entries into the interface configuration file for the bridge that was created after oVirt finished installing.
Your file should look something like this:
DEVICE=ovirtmgmt ONBOOT=yes TYPE=Bridge DELAY=0 IPADDR=192.168.5.20 NETMASK=255.255.255.0 GATEWAY=192.168.5.1 DNS1=192.168.2.15 DNS2=220.127.116.11 BOOTPROTO=none NM_CONTROLLED=no STP=no
The lines that I had to add were DNS1 and DNS2. I also needed to modify the gateway address but I did that through the web interface (why the DNS isn't configurable in the web console I don't know, kind of silly, but it's not).