Everybody Resolves this Domain but Us.

Chris Davis chris.davis at computerjobs.com
Sat Jul 20 13:27:10 UTC 2002


This is the exact same problem I had with the IP address NS RDATA discussed
on this list in the last few days.  Bad NS RDATA is passed with an answer.
If you cache it, you look to be the broken one.

How much money and time needs to be expended on a problem before the
software should prevent it?


-----Original Message-----
From: James Griffin [mailto:agriffin at cpcug.org]
Sent: Saturday, July 20, 2002 8:53 AM
To: comp-protocols-dns-bind at isc.org
Subject: Re: Everybody Resolves this Domain but Us.



Simon Waters wrote:
> 
> Martin McCormick wrote:
> >
> >         I am blue in the face.  What else can I try?
> 
> accxx123.com
> 
> Asking for it's nameserver gives.
> 
> $ dig @216.98.135.124 accxx123.com ns +norec +short
> brit.
> 
> There is no top level domain "brit." let alone a nameserver, so
> the domain is broken.
> 
> Probably they meant brit.accxx123.com or some such, but that
> isn't what got written to the zone file.
> 

Simon is spot-on.  Here is the axfr for accxx123.com with notes.

$ dig   @soham.clikaroo.net. accxx123.com. axfr

; <<>> DiG 9.2.1 <<>> @soham.clikaroo.net. accxx123.com. axfr
;; global options:  printcmd
accxx123.com.           3600    IN      SOA     brit. admin. 6 900 600
86400 3600
---------  Note the ending '.' here ----------------^ and  ^
accxx123.com.           3600    IN      A       216.98.135.124
accxx123.com.           3600    IN      NS      brit.
---------  as well as here -------------------------^ but
---------  where is the A RR for brit.<whatever>?
accxx123.com.           3600    IN      MX      10 email.accxx123.com.
email.accxx123.com.     3600    IN      A       216.98.135.124
ftp.accxx123.com.       3600    IN      A       216.98.135.124
www.accxx123.com.       3600    IN      A       216.98.135.124
accxx123.com.           3600    IN      SOA     brit. admin. 6 900 600
86400 3600
;; Query time: 296 msec
;; SERVER: 216.98.135.124#53(soham.clikaroo.net.)
;; WHEN: Sat Jul 20 08:46:17 2002
;; XFR size: 9 records

[snip]


More information about the bind-users mailing list