Reverse DNS Problem
Mark_Andrews at isc.org
Mark_Andrews at isc.org
Sun Feb 2 01:00:24 UTC 2003
It looks like you have worked out your problem. That being
that each individual reverse name was individually delegatated
which is reasonable for three addresses.
I would however get a second, topologically remote, nameserver
for these zones especially as you say you need reverse
lookup to work for these servers.
Mark
> Hi all,
>
> I am having a heck of a time understanding what the problem is here....
>
> I currently have 3 servers colocated with peer1.net
> I am using 1 IP for each serrver.
> Peer 1 assures me the IPs have been delegated to my nameserver
> NS: ns1.thenetnow.com
> IPs: 65.39.193.152 , 153 , 154.
>
> I have set up the named.conf:
>
>
> options {
> directory "/etc/namedb";
> allow-transfer { none; };
> allow-query { any; };
> };
> ....
>
> zone "193.39.65.IN-ADDR.ARPA" {
> type master;
> allow-query {any;};
> file "masters/thenetnow.rev";
> };
>
>
> I have the .rev file (in masters):
>
>
> $TTL 1800;
> @ IN SOA 193.39.65.IN-ADDR.ARPA. webmaster.thenetnow.com. (
> 2003020102 ;Serial
> 28800 ;Refresh
> 14400 ;Retry
> 604800 ;Expire
> 1800 ) ;Minimum
> IN NS ns1.thenetnow.com.
> 152 IN PTR enterprise.thenetnow.com.
> 154 IN PTR excelsior.thenetnow.com.
> enterprise.thenetnow.com. IN A 65.39.193.152
> excelsior.thenetnow.com. IN A 65.39.193.154
>
> WHen I do dig -x on the machine I get:
>
> enterprise# dig -x 65.39.193.152
>
> ; <<>> DiG 9.2.1 <<>> -x 65.39.193.152
> ;; global options: printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 31778
> ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 1
>
> ;; QUESTION SECTION:
> ;152.193.39.65.in-addr.arpa. IN PTR
>
> ;; ANSWER SECTION:
> 152.193.39.65.in-addr.arpa. 1800 IN PTR enterprise.thenetnow.com.
>
> ;; AUTHORITY SECTION:
> 193.39.65.in-addr.arpa. 1800 IN NS ns1.thenetnow.com.
>
> ;; ADDITIONAL SECTION:
> ns1.thenetnow.com. 1800 IN A 65.39.193.152
>
> ;; Query time: 1 msec
> ;; SERVER: 127.0.0.1#53(127.0.0.1)
> ;; WHEN: Sat Feb 1 10:19:51 2003
> ;; MSG SIZE rcvd: 116
>
> enterprise#
>
> But when I do the dig on any other non local machine:
>
> host.expresshost.net >dig -x 65.39.193.152
>
> ; <<>> DiG 8.2 <<>> -x
> ;; res options: init recurs defnam dnsrch
> ;; got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 4
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0
> ;; QUERY SECTION:
> ;; 152.193.39.65.in-addr.arpa, type = ANY, class = IN
>
> ;; Total query time: 1 msec
> ;; FROM: host.expresshost.net to SERVER: default -- 64.176.60.218
> ;; WHEN: Sat Feb 1 10:20:55 2003
> ;; MSG SIZE sent: 44 rcvd: 44
>
> host.expresshost.net >
>
> I have a few things on the box that won't work without reverse mapping
> working, any ideas what the problem is?
>
> -Grant
>
>
> --
> -Grant
>
> Grant W. Peel
> Server Admin
> grant at thenetnow.com
> http://thenetnow.com
>
>
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at isc.org
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