One static IP address and reverse lookup

Alex Miller bind-users at bannerclub.com
Fri Jan 7 18:46:36 UTC 2000


I have one static IP address on a linux
box with Bind 8.

I have a number of domains. Happily,
bind works, and serves the zones for
my domains and granitecanyon is functioning
fully as zone slaves.

My IP address is 209.21.191.17

The way I have things set up, I have one
and only one A record among all my zones,
acme.acmeconscience.org

All my other zones consist of CNAMES which
point to acme.acmeconscience.org including
the CNAME for my nameserver ns.acmeconcscience.net
My MX records use acme.acmeconscience.org as
the lowest value MX record.

The domains that are set up are
acmeconscience.org (the one with the A record)
acmeconscience.net (the one with the registered name server)
bannerclub.com
creativepeople.org
cybergood.net
cybergood.org
cybergod.org

What should I do with regards to obtaining
delegation for my static IP address.

Clearly my ISP has the reverse lookup zone
191.21.209.in-addr.arpa

The contents of that zone is correctly
$ORIGIN 21.209.in-addr.arpa.
191     86400   IN      SOA     ns.mercurian.com. celtic.celticweb.com. (
                2000010501 28800 7200 604800 86400 )
        86400   IN      NS      ns.mercurian.com.
        86400   IN      NS      auth01.ns.harvard.net.
$ORIGIN 191.21.209.in-addr.arpa.
1       86400   IN      PTR     cisco2513.celticweb.com.
12      86400   IN      PTR     roger.celticweb.com.
14      86400   IN      PTR     usagateway.wonderbox.com.
15      86400   IN      PTR     brennick.com.
17      86400   IN      PTR     acme.acmeconscience.org.
19      86400   IN      PTR     namebears.celticweb.com.
2       86400   IN      PTR     ns.mercurian.com.
25      86400   IN      PTR     svaha.com.
3       86400   IN      PTR     celticweb.com.
4       86400   IN      PTR     pagesentry.celticweb.com.
40      86400   IN      PTR     linux.brennick.com.
5       86400   IN      PTR     pop.celticweb.com.
6       86400   IN      PTR     ntserver.celticweb.com.
8       86400   IN      PTR     www.newgrange.net.
9       86400   IN      PTR     smtp.celticweb.com.

Is it possible for me to have the delegation of
17.191.21.209.in-addr.arpa

That way I could add reverse lookups for multiple
A records for my one static IP address.

Or is it in principle best that for each IP address
it is best to have 1 A record and one corresponding
PTR record, and that's it.

Alex Miller



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