Subnetting in a reverse file

[inforeqd]

I have a subnet that uses a .224 netmask (/27 network). The problem is I have two sites that use the same 3rd octet and its been subnetted. How do I put the SOA in for each reverse?? I can easily just create a custom reverse file but I'm thinkin the SOA line needs something like

27/24.168.192 or something like that. Anyone ever setup reverse files on a subnetted network??

Thanks in advance

 

[iggsterman]

Suppose you have 192.168.233.128/27 DELEGEATED to your mynameserver.mydomain.com's IP address.
In your named.conf add:
.....
zone "233.168.192.in-addr.arpa." IN {
type master;
file "192.168.233.zone";
allow-update { none; };
};

zone "128/27.233.168.192.in-addr.arpa." IN {
type master;
file "192.168.233.128.zone";
allow-update { none; };
};
.....
Make sure mynameserver.mydomain.com resolves. I put just 2 IP addresses to resolve for this example, 192.168.233.133 and 192.168.233.136. Now let's make the zone files.

Complete 192.168.233.zone file:

$ORIGIN 168.192.in-addr.arpa.
233 17280 IN SOA mynameserver.mydomain.com postmaster.mydomain.com (
2012042103
3H
1H
1W
1H )
17280 IN NS mynameserver.mydomain.com.


$ORIGIN 233.168.192.in-addr.arpa.
133 17280 IN CNAME 133.128/27.233.168.192.in-addr.arpa.
136 17280 IN CNAME 136.128/27.233.168.192.in-addr.arpa.

Complete 192.168.233.128.zone file:

$ORIGIN 233.168.192.in-addr.arpa.
128/27 17280 IN SOA mynameserver.mydomain.com postmaster.mydomain.com (
2012042102
3H
1H
1W
1H )
17280 IN NS mynameserver.mydomain.com.


$ORIGIN 128/27.233.168.192.in-addr.arpa.
133 17280 IN PTR oneserver.mydomain.com.
136 17280 IN PTR twoserver.mydomain.com.




That's it.