Reverse DNS issue…Help Needed Please ..?

[redhat70]

Hi,

We have configured reverse DNS and asked the Network team to update the RIPE database.But we have got the reply from them saying that:

“This needs to be authorative first on the DNS servers before we can update RIPE.”

Can anybody tell me what does they mean by authorative first on the DNS?


Forward DNS is in Place :
=====================
carnap# nslookup mail1.reftec.se
Server: dns1.o2.ie
Address: 62.40.32.33

Non-authoritative answer:
Name: mail1.reftec.se
Address: 45.204.215.233

Reverse DNS is in Place :
===================
carnap# nslookup 45.204.215.233
Server: dns1.o2.ie
Address: 62.40.32.33

Name: mail1. reftec.se
Address: 45.204.215.233


Can anybody tell me what does they mean by authorative first on the DNS?


Regards,
Aparna

[cnamejj]

The forward lookups aren't working for me even when I direct the query to the nameserver you listed. So I'd suggest that you get that working first, and confirm with a DNS lookup from outside your network.

$ dig mail1.reftec.se

; <<>> DiG 9.2.0 <<>> mail1.reftec.se
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 14766
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;mail1.reftec.se.               IN      A

;; AUTHORITY SECTION:
reftec.se.              524     IN      SOA     ns1.chalmers.se. cth-nic.chalmers.se. 2012051510 14400 3600 1209600 600

;; Query time: 1 msec
;; SERVER: 127.0.0.1#53(127.0.0.1)
;; WHEN: Sat Oct 27 12:46:55 2012
;; MSG SIZE  rcvd: 90

$ dig @dns1.o2.ie mail1.reftec.se

; <<>> DiG 9.2.0 <<>> @dns1.o2.ie mail1.reftec.se
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 16281
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0

;; QUESTION SECTION:
;mail1.reftec.se.               IN      A

;; AUTHORITY SECTION:
reftec.se.              538     IN      SOA     ns1.chalmers.se. cth-nic.chalmers.se. 2012051510 14400 3600 1209600 600

;; Query time: 271 msec
;; SERVER: 62.40.32.33#53(dns1.o2.ie)
;; WHEN: Sat Oct 27 12:47:27 2012
;; MSG SIZE  rcvd: 90

[redhat70]

which is the name server ?

Could you please list it here ?

[Lazydog]

run the following;

dig reftec.se ns

and post the output.

this will show who is the authorative server for this domain.

[redhat70]

# dig mail1.reftec.se ns

; <<>> DiG 8.3 <<>> mail1.reftec.se ns
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 2
;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
;; QUERY SECTION:
;; mail1.reftec.se, type = NS, class = IN

;; AUTHORITY SECTION:
reftec.se. 42m40s IN SOA ns1.novara.ie. hostmaster.host.se. (
2012092613 ; serial
3H ; refresh
1H ; retry
1W ; expiry
4H ) ; minimum


;; Total query time: 8 msec
;; FROM: japan to SERVER: default -- 62.40.32.43
;; WHEN: Wed Oct 31 18:47:00 2012
;; MSG SIZE sent: 33 rcvd: 96

[Lazydog]

Sorry for the late reply, Sandy has me working overtime the past few weeks.

Here is what I am seeing

; <<>> DiG 9.3.2 <<>> @4.2.2.2 sungard.com reftec.se ns
; (1 server found)
;; global options:  printcmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 400
;; flags: qr rd ra; QUERY: 1, ANSWER: 3, AUTHORITY: 0, ADDITIONA

;; QUESTION SECTION:
;reftec.se.                     IN      NS

;; ANSWER SECTION:
reftec.se.              172800  IN      NS      ns3.chalmers.se.
reftec.se.              172800  IN      NS      ns2.chalmers.se.
reftec.se.              172800  IN      NS      ns1.chalmers.se.

;; Query time: 154 msec
;; SERVER: 4.2.2.2#53(4.2.2.2)
;; WHEN: Mon Nov 05 11:25:38 2012
;; MSG SIZE  rcvd: 90

These are the Authorative DNS servers for reftec.se.