master and slave for same zone on with different IP addresses

Stephane Bortzmeyer bortzmeyer at nic.fr
Thu Jul 15 11:38:34 UTC 2004


On Thu, Jul 15, 2004 at 04:03:26AM -0700,
 asim khan <asim.khan at kcl.ac.uk> wrote 
 a message of 21 lines which said:

> I set up a virtual interface hme0:2  for the slave nameserver with 
> hostname prospero.umds.ac.uk for zone umds.ac.uk on a  solaris 5.9 ultra5,
> also running as the master nameserver with hostname lime.umds.ac.ukfor 
> the zone umds.ac.uk on a diffrent IP address on the real interface
> hme0

That is a strange idea. Why two servers on the same machine, you lose
all redundancy.

> Using the command dig @prospero.umds.ac.uk www.kcl.ac.uk there was no 
> response with a timeout error..?

It works for me:

%  dig @prospero.umds.ac.uk www.kcl.ac.uk

; <<>> DiG 8.3 <<>> @prospero.umds.ac.uk www.kcl.ac.uk 
; (1 server found)
;; res options: init recurs defnam dnsrch
;; got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17019
;; flags: qr aa rd ra; QUERY: 1, ANSWER: 2, AUTHORITY: 3, ADDITIONAL: 4
;; QUERY SECTION:
;;      www.kcl.ac.uk, type = A, class = IN

;; ANSWER SECTION:
www.kcl.ac.uk.          5M IN CNAME     acacia.cc.kcl.ac.uk.
acacia.cc.kcl.ac.uk.    10M IN A        137.73.2.2

;; AUTHORITY SECTION:
kcl.ac.uk.              1D IN NS        iguana.kcl.ac.uk.
kcl.ac.uk.              1D IN NS        axolotl.kcl.ac.uk.
kcl.ac.uk.              1D IN NS        ns3.ja.net.

;; ADDITIONAL SECTION:
ns3.ja.net.             1d22h49m39s IN A  193.63.106.103
ns3.ja.net.             22h49m39s IN AAAA  2001:630:0:46::67
iguana.kcl.ac.uk.       1D IN A         137.73.2.5
axolotl.kcl.ac.uk.      1D IN A         137.73.2.8

;; Total query time: 19 msec
;; FROM: kiwi.generic-nic.net to SERVER: 159.92.16.12
;; WHEN: Thu Jul 15 13:37:29 2004
;; MSG SIZE  sent: 31  rcvd: 214


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