reverse DNS

Mark_Andrews at isc.org Mark_Andrews at isc.org
Wed Jul 10 14:36:32 UTC 2002


> The 12.x.x file actuallly looks like this:
> 
> $TTL    43200
> @               IN      SOA     ns1.domain.com.
> hostmaster.felix.domain.com. (
>                         2002070102 ; serial
>                         1H ; refresh
>                         15 ; retry
>                         14D ; expire
>                         12H ; default_ttl
>                         )
> 110             IN      PTR     systems1.domain.com.
> 65              IN      PTR     netop.domain.com.
> 12              IN      PTR     vpn.domain.com.
> 18              IN      PTR     glamon.domain.com.
> 44              IN      PTR     mail.doamin.com.
> 47              IN      PTR     mail2.domain.com.
> 228             IN      PTR     mason2.domain.com.
> 61              IN      PTR     webmail1.doamin.com.
> 62              IN      PTR     webmail2.domain.com.
> @               IN      NS      ns1.domain.com.
> @               IN      NS      ns2.domain.com.
> 
> I left a few lines out in the last post.  But the NS records are there.

	Conventionly the NS records follow the SOA record.
> 
> What's causing it not to connect from 'dig -x x.x.x.x'?

	Firewall?  Error in resolv.conf?

	Mark

> 
> -Devon
> 
> -----Original Message-----
> From: Mark.Andrews at isc.org [mailto:Mark.Andrews at isc.org] 
> Sent: Tuesday, July 09, 2002 5:57 PM
> To: Devon Harding - GTHLA
> Cc: bind-users at isc.org
> Subject: Re: reverse DNS 
> 
> 
> > 
> > For some reason, I cannot to a reverse lookup on my IP address on my RH7.2
> > system.  When I do a 'dig -x 12.x.x.x', I get the following error: ';;
> > connection timed out; no servers could be reached'
> 
> 	Did you read your log files before posting?
> 	You are missing the NS records for the zone.
> 
> 	Mark
>  
> > Here are my DNS files:
> > 
> > named.conf
> > 
> > options {
> >         directory "/var/named";
> > };
> > key "rndckey"{
> >         algorithm "hmac-md5";
> >         secret "ko3EjjIw+4Tf8BKHZqjq+g==";
> > };
> > controls{
> >         inet 127.0.0.1 allow{
> >                 localhost;
> >         }       keys{
> >                 "rndckey";
> >         };
> > };
> > zone "." {
> >         type hint;
> >         file "named.ca";
> > };
> > zone "domain.com" {
> >         type master;
> >         file "domain.com";
> >         notify yes;
> > };
> > zone "x.x.12.IN-ADDR.ARPA" {
> >         type master;
> >         file "12.x.x";
> >         notify yes;
> > };
> > zone "0.0.127.IN-ADDR.ARPA" {
> >         type master;
> >         file "127.0.0";
> > };
> > 
> > 12.x.x:
> > 
> > $TTL    43200
> > @               IN      SOA     ns1.domain.com.  hostmaster.domain.com. (
> >                         2002070102 ; serial
> >                         1H ; refresh
> >                         15 ; retry
> >                         14D ; expire
> >                         12H ; default_ttl
> >                         )
> > 110             IN      PTR     systems1.domain.com.
> > 65              IN      PTR     netop.domain.com.
> > 
> > -Devon
> > 
--
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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