DNS PTR Records subnet
Joseph S D Yao
jsdy at center.osis.gov
Thu Mar 15 19:23:10 UTC 2007
On Thu, Mar 15, 2007 at 01:34:24PM -0400, Sangoi, Nehal (GE Supply, consultant) wrote:
> Hi
>
> How can I define my reverse record zone files for the subnet like
> "3.160.232.0/22"
>
> should it be "160.3.in-addr.arpa"
>
> or should it be like
> "235.160.3.in-addr.arpa"
> "234.160.3.in-addr.arpa"
> "232.160.3.in-addr.arpa"
Do you own the 3.160.0.0/16 network? No, you do not (at least, not from
what you said above). Therefore you must not define a reverse DNS zone
for it.
You must define zones for those networks that you do own. As you almost
say, the zones you would define are:
232.160.3.in-addr.arpa
233.160.3.in-addr.arpa
234.160.3.in-addr.arpa
235.160.3.in-addr.arpa
You must then ask the person who DOES serve 160.3.in-addr.arpa to
delegate those subdomains to your name servers. Otherwise, nobody will
be able to see your zones!
Authoritative answers can be found from:
3.in-addr.arpa
origin = ns.ge.com
mail addr = hostmaster.ge.com
serial = 2006102301
refresh = 10800
retry = 3600
expire = 604800
minimum = 300
OK, it looks like your 3.in-addr.arpa hostmaster likes to keep all his
networks in one big file. So, you have to ask him or her to delegate
232.160, 233.160, 234.160, and 235.160 to your name servers.
--
Joe Yao
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