[Pdns-users] ptr - revese dns

[Alan Hodgson]

On April 19, 2006 02:51 pm, Luis Matos <gass at otiliamatos.ath.cx> wrote:
> Alan Hodgson wrote:
> >On April 19, 2006 02:32 pm, Luis Matos <gass at otiliamatos.ath.cx> wrote:
> >>updated SOA, and i also have reverse dns when request directly to the
> >>server, but not from else where.
> >
> >Is the reverse DNS range delegated to your name server?
>
> if the ip is, why not the reverse? good question ... the ip in quetion
> is 212.54.133.46

From what I can see, the reverse DNS for that is delegated to ns.broadnet.pt 
and ns2.broadnet.pt.  Are you working on those servers?

[ahodgson at hal ~]$ dig ns 133.54.212.in-addr.arpa

; <<>> DiG 9.3.2 <<>> ns 133.54.212.in-addr.arpa
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 57763
;; flags: qr rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 0, ADDITIONAL: 2

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

;; ANSWER SECTION:
133.54.212.in-addr.arpa. 172771 IN      NS      ns.broadnet.pt.
133.54.212.in-addr.arpa. 172771 IN      NS      ns2.broadnet.pt.

;; ADDITIONAL SECTION:
ns.broadnet.pt.         28771   IN      A       212.54.130.65
ns2.broadnet.pt.        431971  IN      A       212.54.130.81

;; Query time: 18 msec
;; SERVER: 72.51.27.50#53(72.51.27.50)
;; WHEN: Wed Apr 19 14:57:15 2006
;; MSG SIZE  rcvd: 119


Reverse DNS is a full delegation chain just like forward DNS.  It doesn't 
just magically work :/

-- 
"I often liken government to a mentally retarded giant.  It is immensely
powerful but basically incapable of doing any but the simplest of tasks."