Query Failure.

[Mark_Andrews at isc.org]

	Firstly nameserver chains like the following are known to be
	problematic for BIND 4 and BIND 8 (< 8.3) servers.

1-gps.com.              1d23h59m2s IN NS  NS3.SATELLITE-PHONES.ORG.
1-gps.com.              1d23h59m2s IN NS  NS32.SATELLITE-PHONES.ORG.
SATELLITE-PHONES.ORG.   1d23h59m4s IN NS  DNS2.INTERLAND.NET.
SATELLITE-PHONES.ORG.   1d23h59m4s IN NS  DNS3.INTERLAND.NET.
SATELLITE-PHONES.ORG.   1d23h59m4s IN NS  DNS1.INTERLAND.NET.
INTERLAND.NET.          2D IN NS        DNS1.INTERLAND.NET.
INTERLAND.NET.          2D IN NS        DNS2.INTERLAND.NET.

	Secondly as far as the servers for SATELLITE-PHONES.ORG are concerned
	NS32.SATELLITE-PHONES.ORG does not exist.

	Mark

> Hello Ladies and Gents.
>     I have a problem that is driving me crazy. I have a few domains that
> seem to just drop an irregular intervals. This has a couple of my customers
> screemeing about not being ale to reach these domains.
> I am using Bind 8.2.5 on Solaris 7 on 2 seperate identical servers (both are
> pirmaries, not 1 master, 1 slave config)
> For example, 1-gps.com or 1-gps.net. These domains seems to work fine for a
> time and then just drop from DNS server. nslookup times out and it is like
> the domains don't exist. Both these domains have the same NS server and I
> suspect there is a config error, but I am unable to point to the problem.
> Lookup seem to work from ANY other server in the world that I try a nslookup
> from. I have at least 1 other domain that is doing the same thing and I am
> to the point that I am about ready to add a forwarder line to named.conf,
> but I would like to know what the problem is.
>     The domain may work for 3 days or they may work for 10 minutes before
> lookup fails. Even more strange is the identical server (and I do mean
> exactly identical in every aspect) seems to nearly never drop these, but
> none the less, it does occasionally drop these.
> If I kill the name server and restart it, it almost always (few exceptions)
> picks it up immediately.
> I am using the root-server.net root servers. Should I be using Gtld servers?
> Just to be clear these domains are the actual domains that I am having
> problems with and they are not on my system. But I have a user that us
> trying to reach these domains from my network and is unable at times.
> ANY help would be GREATLY appreciated. I have been struggling with this for
> a wwek and I am about to move to the country and raise cows is I don;t
> figure it out.
> 
> Thanks again in advance
> *Mick*
> 
> 
> 
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org