Re: forcing no lookups on certain zones

[Marcelo Medici <gaucho@ericps.crc.uiuc.edu>]

Yes, thank you very much!

On Sun, 26 Jan 2003, Steven Pritchard wrote:

> On Sat, Jan 25, 2003 at 07:54:41PM -0600, Marcelo Medici wrote:
> > is there a manner of setting my server up to think it is master for these
> > zones, but prevents the actual queries, or doesnt require the server to
> > load in zone entries for each rfc1918 ip address?
>
> If I'm understanding your question, why not do this:
>
> In /etc/named.conf:
>
>     zone "10.in-addr.arpa" {
>         type master;
>         file "db.empty";
>     };
>
>     zone "16.172.in-addr.arpa" {
>         type master;
>         file "db.empty";
>     };
>
>     zone "17.172.in-addr.arpa" {
>         type master;
>         file "db.empty";
>     };
>
>     [... (18-29).172.in-addr.arpa ...]
>
>     zone "30.172.in-addr.arpa" {
>         type master;
>         file "db.empty";
>     };
>
>     zone "31.172.in-addr.arpa" {
>         type master;
>         file "db.empty";
>     };
>
>     zone "168.192.in-addr.arpa" {
>         type master;
>         file "db.empty";
>     };
>
> Then in /var/named (or whatever directory you have named.conf pointing
> to), create db.empty with only this:
>
>     @	IN	SOA	localhost. root.localhost. (
>     			1	; serial
>     			10800	; refresh
>     			3600	; retry
>     			604800	; expire
>     			86400 )	; minimum
>
> In other words, a valid SOA, but nothing else (except maybe a NS
> record).  That should make named return an authoritative NXDOMAIN for
> any lookup in those zones immediately.
>
> Steve
> --
> steve@silug.org           | Southern Illinois Linux Users Group
> (618)398-7360             | See web site for meeting details.
> Steven Pritchard          | http://www.silug.org/
>
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