[aclug-L] Re: DNS TEST

[Steven Saner <ssaner@xxxxxxxxxxxxxxx>]

Okay, so you are using traceroute to do a DNS lookup, fine, but I
would prefer to use the host command (bind 8.x).

Nonetheless, just because one or more of SWBI DNS servers are not
giving you the correct information, does not mean that it is the fault
of SWBI's DNS server. You need to first make sure that all of the
authoritative DNS servers are responding with the correct
information. If one of them is not, and SWBI's server happens to ask
that one, it is going to give you wrong information.


On Tue, Apr 25, 2000 at 03:35:49PM -0500, David Carmichael wrote:
> In short if the local DNS server is unable to find the name and match it
> with an IP address then even a trace route would fail before it could go any
> farther along the route.
> 
> And if other ISP's are able to do a proper DNS / IP match kind of narrows
> down the error.
> 
> As far as SWBI goes it seems that they fixed their DNS server and is now
> working with most (not all) of the sites that I had been erroring out on for
> the past two weeks.
> 
> The IP addresses of the SWBI DNS servers are 161.147.174.1 through
> 161.147.174.8 and here in Wichita a DSL line is connected to SWBI using DHCP
> which should find and use the first open DNS server.
> 
> --David
> 
> ----- Original Message -----
> From: "Steven Saner" <ssaner@xxxxxxxxxxxxxxx>
> To: <discussion@xxxxxxxxx>
> Sent: Tuesday, April 25, 2000 2:20 PM
> Subject: [aclug-L] Re: DNS TEST
> 
> 
> > Well, a DNS lookup and a traceroute to a remote host are two different
> > things. If you think that it is a DNS problem, traceroute isn't likely
> > going to help you solve it. You need to find who is the the
> > authoritative name server for the domain and ask those servers what
> > the IP address should be. Then compare that with that SWBI's name
> > servers tell you.
> >
> > What are the SWBI DNS server IP addresses that you are using?
> >
> >
> >
> >
> > On Tue, Apr 25, 2000 at 12:03:41PM -0500, David Carmichael wrote:
> > > The point is SWBI is claiming that the troubles is at 'Infobeats' end
> and
> > > not theirs and if I have a few trace routes from other ISP's I can try
> to
> > > prove to them that there is something wrong with their DNS server.
> > >
> > > I can reach the site using the IPS number address just not under their
> > > name..
> > >
> > > --David
> > >
> > > ----- Original Message -----
> > > From: "Jeff" <schaller@xxxxxxxxxxxxx>
> > > To: <discussion@xxxxxxxxx>
> > > Sent: Tuesday, April 25, 2000 11:38 AM
> > > Subject: [aclug-L] Re: DNS TEST
> > >
> > >
> > > > On Tue, 25 Apr 2000, David Carmichael wrote:
> > > >
> > > > > I use SWBI as my current ISP and have been having troubles accessing
> a
> > > web
> > > > > site for the last two weeks that I had no troubles with before.
> > > > >
> > > > > Please do a trace route and send me a copy of your findings.
> > > > >
> > > > > The web site HTTP://WWW.INFOBEAT.COM
> > > >
> > > > I might point out that other people's traceroutes are going to be
> > > > next to useless to you, unless you happen to be in charge of
> > > > routing for SWB.
> > > >
> > > > Do you have your routing tables set up correctly? (netstat -rn)
> > > > Can you ping your default route?
> > > > Can you resolve the site name? (I get 192.147.174.116)
> > > > Is there filtering or a firewall that would be killing it?
> > > >
> > > > -jeff
> > > > --
> > > >      Karate is a form of martial arts in which people who have had
> years
> > > > and years of training can, using only their hands and feet, make some
> of
> > > > the worst movies in the history of the world.
> > > >      -- Dave Barry
> > > >
> > > >
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> > > >
> > >
> > >
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> 
> 
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