[isp-dns] Re: Should I have to restart BIND for updates?

["R. Scott Perry" <horizons@...]

>         I had a customer change a domain from one host (not us) to 
> another host
> (not us).  Every other name server that we checked became aware of the
> change almost immediately.  Our name server however, labored under the
> illusion that no change had taken place.  I eventually had to stop and
> restart the service before the new name servers were learned by our DNS.
> This isn't normal is it?  Do you think the service was just porked?
Just about everyone else that is responding seems to think that you are 
hosting the DNS for this domain, but I am sure that you are not (if other 
servers have the new information, and you don't, you *can't* be 
authoritative for the zone).

In this case, the problem is just that you have cached answers, and you 
have to wait until the cache clears.  It's quite possible that whereever 
the DNS was hosted, someone goofed and did something like set a TTL to a 
month, which would mean that your server could cache the results for up to 
a month.

To see what some popular DNS servers see the DNS as, you can use the 
following URL, replacing the domain and record type as needed (there is no 
form yet to do this 
automatically):