Since i want the 224/28 subnet to be forwarded to another name server
and the rest of the ip address in the /24 to be answered by my own name
server could i do something like this?
79.73.217.in-addr.arpa:
IN NS ns1.myserver.com // this is the NS for all the IP in
that range that my name server will answer
IN NS ns2.myserver.com
224/28 IN NS ns1.otherserver.com. // this /28 subnet will not
be answered by my name server but another server
224/28 IN NS ns1.otherserver.com.
Or do i have to define every other ip as part of a subnet which is
smaller then /24?
Imre Gergely wrote:
The rest of the IP addresses (outside that /28) you can define with
PTR in the normal way, whenever you like. It's not necessary to define
them all, if they don't have a PTR record, that's alright.
So in your zone file on your 2 namservers you'll have
224/28 IN NS ns1.otherserver.com.
224/28 IN NS ns1.otherserver.com.
26 IN PTR foo1.example.com.
27 IN PTR foo2.example.com.
28 IN CNAME 28.224/28.79.73.217.in-addr.arpa.
29 IN CNAME 29.224/28.79.73.217.in-addr.arpa.
[..]
43 IN CNAME 43.224/28.79.73.217.in-addr.arpa.
44 IN PTR foo3.example.com.
You only have to have the CNAMEs for _all_ the IP addresses in that
/28 subnet, because you want to delegate them all to the other
nameserver.
On 03/25/2010 06:50 PM, Athiqur Rahman wrote:
Looking at the link below. It looks like that I will have to create
CNAME entry for every IP in the /28 subnet, That is 16 CNAME entries?
The nameserver that I am sending to will have to create a zone record
called 224/28.79.73.217.in-addr.arpa?
I am thinking do I have to define the rest of the IP addreses or will
just simple defining that one /28 be enough? Will the rest of the IP
addresses fall into the umbrella of the main NS definition in the zone
record?
Imre Gergely wrote:
You mean delegating a subnet to another nameserver? This may help:
http://www.zytrax.com/books/dns/ch3/#reverse
On 03/25/2010 05:53 PM, Athiqur Rahman wrote:
Hi,
I have the following zone 79.73.217.in-addr.arpa with the NS set as
my 2
name servers.
What i want to do is just forward reverse dns requests for
217.73.79.224/28 to another name server. What would be the best way to
go about this?
Thanks
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