Re: [nznog] XTRA DNS Issues - anyone else?

9 Mar 2003


      I am somewhat confused myself with that configuration, I have someone
looking into that, however it wasn't just scarfies.net that were having
problems, there are a number of other clients around the Dunedin area with
similar issues.


----- Original Message -----
From: "Brian Gibbons" 
To: "Dan Clark" ; 
Sent: Monday, March 10, 2003 3:26 PM
Subject: Fw: [nznog] XTRA DNS Issues - anyone else?
...
...
----- Original Message -----
From: Dan Clark
If we update a record in our name server, ns1.clear.net.nz gets it pretty
quickly
The problem appears to be anyone logged into XTRA or using their DNS
is there something different about the way their DNS servers operate?
I would suggest that Xtra's servers are probably confused by the
configuration of your name servers.
A quick audit shows...
For scarfies.co.nz the SRS (.co.nz)  list two name servers
    ns1.scarfies.net
    ns3.scarfies.net
"rootservers".net shows 5 Name Server delegations for scarfies.net
    ns1.scarfies.net
    ns2.scarfies.net
    ns3.scarfies.net
    ns2.zoneedit.com
    ns3.zoneedit.com
ns1.scarfies.net returns two name servers as authorititive for
scarfies.net
    ns1.scarfies.net  (210.55.10.201)
    ns3.scarfies.net  (210.54.31.84)
ns3.scarfies.net lists only one authorititive name server for scarfies.net
    zues.scarfies.net (210.55.10.201)
    It does not list itself (by name) as Authorititive
210.55.10.201 resolves "ns1.scarfies.net" (itself)
    as 210.55.10.201
210.55.10.201 resolve "ns3.scarfies.net "
     as 210.54.31.84
210.54.31.84  (ns3.scarfies.net?) resolves "ns1.scarfies.net "
    as a CNAME for nemisis.scarfies.net (GULP!)
    with an IP address of 210.54.31.84
        (this is the Opposite IP address)
210.55.10.201 resolves "zues.scarfies.net"
    as a CNAME for ns1.scarfies.net.nz
        this is a circular CNAME reference when
        included with the zone file on 210.54.31.84
210.55.10.201 (ns1.scarfies.net) resolves "nemesis.scarfies.net"
    to 210.54.31.84
210.55.10.201 (ns1.scarfies.net) resolves "zues.scarfies.net"
    as a CNAME for ns1.scarfies.net
    with an IP address of 210.55.10.201
        this is difference answer from the other name server
            (which returned 210.54.31.84)
210.54.31.84 (ns3.scarfies.net?) returns no answers for a lookup of
ns3.scarfies.net  (Hmm)
Perhaps a little tidyup might solve your problem @ Xtra
Cheers
BG