[Samba] Help, DNS forwarding not working!

[Ole Traupe]

Hi list,

Today, DNS forwarding stopped working for my domain, and I have no clue 
as to why. We are using Samba internal DNS.

It stopped working for one DC on old hardware a couple of days ago. I 
suspected a hard drive issue (bad blocks in DNS related files) and 
wanted to replace the server in the next days.

Today I rebooted the other DC due to maintenance of the host machine, 
and DNS forwarding stopped working there as well.

I am puzzled as everything else seems to be working fine (Windows 
log-ons, file access on a member server).

Where can I look, what can I do?

Please help. This domain is in production and we basically don't have 
any internet now.

Thanks,
Ole