Reverse Configuration
Barry Margolin
barmar at alum.mit.edu
Sat Oct 16 02:44:54 UTC 2010
In article <mailman.483.1287158389.555.bind-users at lists.isc.org>,
João Alberto Kuchnier <joao.kuchnier at gmail.com> wrote:
> Ari,
>
> I fixed it to use only one reverse file. Like this below:
>
> zone "0-15.101.198.200.in-addr.arpa" {
> type master;
> file "/etc/bind/rev";
> allow-transfer { slave; };
> };
>
> The rev file is like this:
>
> ; 101.198.200.in-addr.arpa
> $ORIGIN 0-15.101.198.200.IN-ADDR.ARPA.
> $TTL 86400
> @ IN SOA ns1.dataprom.com. postmaster.dataprom.com. (
> 2010101501 ; Serial
> 10800 ; Refresh
> 3600 ; Retry
> 1209600 ; Expire
> 3600 ) ; Negative Cache TTL
> ;
> @ IN NS dataprom.com.
> 3 IN PTR ns1.dataprom.com.
> 4 IN PTR ns2.dataprom.com.
> 5 IN PTR mail.dataprom.com.
>
> There are more domains in the same file using the same IPs. Is this a
> problem?
Do you mean that both foo.dataprom.com and bar.someotherdomain.com both
resolve to the same IP? That's not a problem.
While you can legally have multiple reverse entries for the IP, it's not
generally necessary or recommended. Pick one of the names and use that
in the reverse entry.
--
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE don't copy me on replies, I'll read them in the group ***
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