Mysterious DNS Problem

[Martin, Kevin]

I agree, to a certain extent.  If the problem in question is happening in a
DNS setup that is NOT reachable from the Internet then REAL information
won't necessarily help at all ( at least in the context of giving real host
names, domain names, and IP addresses ).  As a debugger, you can't reach it
anyway and, in the case where it's internal, probably is not a registered
domain anyway ( which really would only matter where the problem was related
to something going on w/ ARIN )!  I understand that real information is
necessary when somebody is trying to get help w/ a publicly known domain,
but lets try to be understanding w/ people who are trying to do the right
thing by not publicly broadcasting their private network information.

Kevin Martin


> -----Original Message-----
> From: Benjamin John [mailto:bjohn at firstconsulting.net]
> Sent: Thursday, July 08, 1999 9:13 PM
> To: comp-protocols-dns-bind at uunet.uu.net
> Subject: Re: Mysterious DNS Problem
> 
> 
> Very true, its is stupid when they do that. what is someone 
> going to do with
> "real" information ? it only helps to solve problems if you 
> pass out real
> information.
> 
> Mark is very correct.
> 
> Mark_Andrews at isc.org wrote:
> 
> > > Well, at least it is mysterious to a rookie like me.
> > >
> > > I have registered 3 DNS servers with the internic. 
> However, some ISPs have
> > > the third DNS addresses in their cache, which point to a 
> mirror site. I
> > > waited until the cache was cleared (TTL value expired), 
> and when I queried
> > > the ISPs name server, the #3 DNS value was there again.
> > >
> > > Why does it not cache DNS1 or DNS2? Even though I know 
> they were not down?
> > >
> > > For example the A record for WWW.MYDOMAIN.COM is 
> 255.255.255.1 on DNS1 and
> > > DNS2. The A record for WWW.MYDOMAIN.COM for DNS3 is 255.255.255.2.
> > >
> > > If you were to use home.net's DNS server, you will be 
> sent to 255.255.255.2.
> > > Why doesnt it cache the first value?
> >
> >         mydomain.com has 4 dns servers not 3.  The nameservers
> >         names are ns1.mydomain.com, ns2.mydomain.com, 
> ns3.mydomain.com
> >         and ns4.mydomain.com.  The IP address for www.mydomain.com
> >         is 209.153.199.62 from all of these servers.
> >
> >         Why does every rookie expect to get an answer when they hide
> >         the domain names / IP addresses involved.  You have 
> a problem,
> >         do you hide symtoms when you go to your doctor or 
> to the mechanic
> >         to fix your car.  How do you expect us to help you unless we
> >         can actually identify the problem.
> >
> >         Mark
> > >
> > > Thanks,
> > >
> > > Mo
> > >
> > >
> > >
> > >
> > >
> > --
> > Mark Andrews, Internet Software Consortium
> > 1 Seymour St., Dundas Valley, NSW 2117, Australia
> > PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org
> 
>