dns issues?

[Troy Settle]

Can anyone tell me why the resolver on my 4-STABLE box (updated 3 months 
ago), would suddenly stop being able to resolve krab.centaf.af.mil?  A 
restart of named fixed the issue, but I'm curious as to why it would 
stop resolving in the first place.  I've googled, but haven't found 
anything relevant to the issue.

This has caused much grief for one of my customers who's son is in Iraq, 
and I'd like to prevent it from happening again in the future.

Thanks,

-- 
  Troy Settle
  Pulaski Networks
  http://www.psknet.com
  866.477.5638