Allowable reverse mapping zone file names

Lyle lyle at
Sun Aug 28 00:23:33 UTC 2016

File names?   The file name is up to you.  How you reference it in your 
DNS server is something else.  That depends on your name server software.

As far as question 2, depends on if the reverse zones were delegated to 
you or not. It depends on your ISP.  Many do not delegate reverse lookup 
zones to the end user.  In that case, you have to ask them to insert the 
records you think necessary including your mail server's host name.

Lyle Giese
LCR Computer Services, Inc.

On 08/27/16 10:47, Tom Browder wrote:
> I do not control 3-octet networks but need reverse mapping for my mail 
> server.
> Two questions:
> 1. Where is the doc that completely describes the allowable reverse 
> mapping zone file names?
> 2. When running my own authoritative name servers, do I need reverse 
> mapping for anything other than my single mail server?
> Thanks.
> Best regards,
> -Tom
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