Reverse lookup response format

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Reverse lookup response format

Brad Stevenson

Hello, I apologize if this has been discussed before. I tried to search the archives but couldn’t find anything.

 

I would like to have the behavior of the reverse lookup responses to only include the hostname, not the hostname with the reverse zone appended. So for example:

# nslookup 192.168.2.206

206.2.168.192.in-addr.arpa      name = server1.ctois.local

 

Instead of the way it is now:

# nslookup 192.168.2.206

206.2.168.192.in-addr.arpa      name = server1.ctois.local.2.168.192.in-addr.arpa.

 

Is this possible? Thanks in advance.


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Re: Reverse lookup response format

Warren Kumari
On Tue, Aug 25, 2020 at 10:30 AM Brad Stevenson
<[hidden email]> wrote:

>
> Hello, I apologize if this has been discussed before. I tried to search the archives but couldn’t find anything.
>
>
>
> I would like to have the behavior of the reverse lookup responses to only include the hostname, not the hostname with the reverse zone appended. So for example:
>
> # nslookup 192.168.2.206
>
> 206.2.168.192.in-addr.arpa      name = server1.ctois.local
>
>
>
> Instead of the way it is now:
>
> # nslookup 192.168.2.206
>
> 206.2.168.192.in-addr.arpa      name = server1.ctois.local.2.168.192.in-addr.arpa.
>
>
>
> Is this possible? Thanks in advance.

Yup -- you just need a period ('.') at the end of the name --
presumably in the zone file you have server1.ctois.local - that needs
to be server1.ctois.local.  (without the period the server doesn't
know that the name is fully qualified and adds the zone name...

W

>
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--
I don't think the execution is relevant when it was obviously a bad
idea in the first place.
This is like putting rabid weasels in your pants, and later expressing
regret at having chosen those particular rabid weasels and that pair
of pants.
   ---maf
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Re: Reverse lookup response format

Bind-Users forum mailing list
In reply to this post by Brad Stevenson
> Instead of the way it is now:
> # nslookup 192.168.2.206
> 206.2.168.192.in-addr.arpa      name = server1.ctois.local.2.168.192.in-addr.arpa.

In your zone file be sure that the name that is the target of the PTR
records has a final dot.   Without the trailing dot, the names are
interpreted as relative to the current origin.
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Re: Reverse lookup response format

Anand Buddhdev
In reply to this post by Brad Stevenson
On 25/08/2020 16:29, Brad Stevenson wrote:

Hi Brad,

> I would like to have the behavior of the reverse lookup responses to only
> include the hostname, not the hostname with the reverse zone appended. So
> for example:
>
> # nslookup 192.168.2.206
>
> 206.2.168.192.in-addr.arpa      name = server1.ctois.local

In your zone file, append a dot to the server name, like this:

server1.ctois.local.

Regards,
Anand
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