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Re: reverse dns
From: Len Conrad
Date: Wednesday, July 30, 2003
Time: 7:45:23 am
>I set up the reverse zone at your suggestion. Here is the nslookup result:
>
>% nslookup 12.33.161.78
>Server: dns-rs2.bgtmo.ip.att.net
>Address: 12.127.17.72
>
>Name: ftp.knightprinting.com
>Address: 12.33.161.78
>Aliases: 78.161.33.12.in-addr.arpa
>
>That is the result I expected
which is also the correct result, GAMEOVER.
>, but I'm curious as to why the "Aliases:" line shows up.
I don't use or know nslookup, but I guess nslookup see that its query for
78.161.33.12.in-addr.arpa returns a CNAME, so that's announced.
>Should I remove or disable the reverse zone that I had originally set up?
>Its name is 161.33.12.in-addr.arpa. and looks like this:
that's a full Class C, so you shouldn't be spoofing reverse authority for
ranges not delegeated to your NS
>Or could I just set the PTR records in that original zone to match those
>you listed for the new reverse zone and remove the new zone:
be precise, your NS should answer for what it is delegated with, nothing
more, nothing less.
Len
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