Classless Primary DNS
Mark.Andrews at nominum.com
Mark.Andrews at nominum.com
Thu May 4 07:54:07 UTC 2000
> Hello
>
> I have been assigned a set of classless addresses to use for my site.
> I would like to set up a primary DNS Server.
> I have read rfc 2317 but am still not 100% clear on exactly how everything
> works.
> Let's say I have the ip address 196.14.192.115/28 as my Primary DNS servers
> address.
> The name of my nameserver is test.domain.com
> Do I put a zone entry like the following one in my named.conf
>
> zone ".192.14.196.in-addr.arpa" {
> type master;
> file "named.196.14.192";
> };
The zone name above is illegal (nothing to the left of the first
dot). I would also *not* use cidr notation as there are buggy
resolvers. I would instead use the octet range instead. It is
also wise to be a secondary for the parent zone so that lookups
won't fail when the link to the outside world is down.
e.g.
zone "112-127.192.14.196.in-addr.arpa" {
type master;
file "named.196.14.192.112-127";
};
zone "192.14.196.in-addr.arpa" {
type slave;
file "named.196.14.192";
masters { ... };
};
>
> and then in my named.196.14.192
named.196.14.192.112-127
>
> $ORIGIN 113/28.192.14.196.in-addr.arpa.
$ORIGIN 112-127.192.14.196.in-addr.arpa.
> @ IN test.domain.com. hostmaster.domain.com. (
> 0 ;serial
> 28800 ;refresh
> 14400 ;retry
> 3600000 ;expire
> 86400 ) ;minimum
> IN NS test.domain.com.
> 115 PTR test.domain.com.
>
> And then in my named.conf I add the following entry
>
> zone "domain.com" {
> type master;
> file "named.domain.com";
> };
>
> And in the named.domain.com
>
> @ IN test.domain.com. hostmaster.domain.com. (
> 0 ;serial
> 28800 ;refresh
> 14400 ;retry
> 3600000 ;expire
> 86400 ) ;minimum
> IN NS test
>
> test IN A 196.14.192.115
>
> Is this right? or have I got it all wrong.
> What exactly does the isp have to add on there side to make the dns on my
> side work?
They need to add NS records for 112-127.192.14.196.in-addr.arpa
and CNAMES pointing into 112-127.192.14.196.in-addr.arpa. Normally
this would be in the 192.14.196.in-addr.arpa zone.
Mark
>
> Any help appreciated.
>
>
>
--
Mark Andrews, Nominum Inc.
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742 INTERNET: Mark.Andrews at nominum.com
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