Reverse Lookup Problem

[Ronan Flood]

On 22 Mar 2004 02:47:54 -0800, stat_holyday at hotmail.com (Stat) wrote:

> From my buddy's server a `dig' results in;
> 
> stat at thyme:~$ dig -x 208.38.29.231
> 
> ; <<>> DiG 9.2.1 <<>> -x 208.38.29.231
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 61830
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
> 
> ;; QUESTION SECTION:
> ;231.29.38.208.in-addr.arpa.    IN      PTR
> 
> ;; AUTHORITY SECTION:
> 29.38.208.in-addr.arpa. 8475    IN      SOA    
> marge.compusmart.ab.ca. hostmaster.interbaun.com. 270 43200 21600
> 2592000 172800

I get the same result.

Your ISP appears to have a broken delegation for 29.38.208.in-addr.arpa,
pointing to a non-existant nameserver marge.compusmart.ab.ca.

dig @199.185.131.5 29.38.208.in-addr.arpa. ns

; <<>> DiG 9.2.3 <<>> @199.185.131.5 29.38.208.in-addr.arpa. ns
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 36785
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 0

;; QUESTION SECTION:
;29.38.208.in-addr.arpa.                IN      NS

;; ANSWER SECTION:
29.38.208.in-addr.arpa. 172800  IN      NS      marge.compusmart.ab.ca.

;; Query time: 126 msec
;; SERVER: 199.185.131.5#53(199.185.131.5)
;; WHEN: Wed Mar 24 17:24:42 2004
;; MSG SIZE  rcvd: 76


Also, you seem to be doing something strange here:

> zone "231.29.38.208.in-addr.arpa" {
> 	type master;
> 	file "/etc/bind/231.29.38.208.rev";
> };

> @	IN	NS	ns1.statnet.ca.
> 
> 1	IN	PTR	statnet.ca
> 4	IN	PTR	mail.statnet.ca.
> 5	IN	PTR	gypsy.statnet.ca.
> 6	IN	PTR	orysia.statnet.ca.
> 8	IN	PTR	ftp.statnet.ca.

Do you realise that you're defining, for example,

  8.231.29.38.208.in-addr.arpa. IN PTR ftp.statnet.ca.

a five-octet IPv4 address?

-- 
                      Ronan Flood <R.Flood at noc.ulcc.ac.uk>
                        working for but not speaking for
             Network Services, University of London Computer Centre
     (which means: don't bother ULCC if I've said something you don't like)