PTR using DIG

[BIJU KURIAN]

Kevin,

Thanks a lot...dig -x 1.2.3.4 works fine for me...Thnak you again...

-Biju


On Wed, 30 Mar 2005 18:40:38 -0500, Kevin Darcy <kcd at daimlerchrysler.com> wrote:
> BIJU KURIAN wrote:
> 
> >How can i see the PTR record for a host..
> >
> >dig host1.doma.com @ns1.domain.com PTR doesn't show the details..
> >
> >Is there someother ways to see the PTR recoring working fine or not?
> >
> If host1.doma.com owns a PTR record, then dig host1.doma.com will show
> it. But, normally PTR records exist solely for reverse lookups and are
> therefore found under the in-addr.arpa tree; you typically wouldn't see
> one under the .com tree unless it is aliased from somewhere under the
> in-addr.arpa tree.
> 
> You can simulate a reverse lookup in dig by reversing the octets of the
> address,  appending ".in-addr.arpa" to the result, and then querying
> whether that name owns any PTR records, e.g. reverse lookup of 1.2.3.4
> -> dig 4.3.2.1.in-addr.arpa ptr. Most versions of dig also have a -x
> option that does the grunt work of reversing and appending, e.g. dig -x
> 1.2.3.4 ptr, and some versions of dig even default to looking up PTR
> records when the -x option is used, so maybe the command is as simple as
> dig -x 1.2.3.4. Give it a try.
> 
> 
>                                                 - Kevin
> 
> 


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