One thing we do is create a single "alias" zone with generic information in it
to have multiple zones all go to the same IP.
Typically the main zone we'll put in its own zone file and have named.conf
associate that zone with that zone file.
For other zones we tell named.conf to point to the alias zone file:
Something like:
@ IN SOA ns1.example.com. techuser.example.com. (
2011091902 ; serial
10800 ; refresh
3600 ; retry
604800 ; expire
86400 ) ; Minimun TTL
;
; Name Servers
;
IN NS ns1.example.com.
IN NS ns2.example.com.
;
; Mail Servers
;
IN MX 10 mail.example.com. ; Primary MX BH
IN MX 30 mail.example.com. ; Primary MX BH
;
; Addresses
;
;
@ IN A 192.168.1.1
;
www IN A 192.168.1.1
;
Any domain in named.conf pointing to this alias zone will be substituted
automatically for the "@" seen in this file whenever a lookup occurs.
So if named.conf sent examplestore.com to the alias file it would see that
examplestore.com and www.examplestore.com are both at 192.168.1.1.
If named.conf also sent examplesite.com to the file then it would see that
examplesite.com and www.examplesite.com are both at 192.168.1.1 as well.
As noted by someone else you should only have one PTR record (we keep that in a
separate arpa zone) that points to your primary domain.
Note that in the above the NS (name server) and MX (mail) records point to your
regular mail and name servers in a primary domain and are not relative to the
alias domains like the www is.
-----Original Message-----
From: bind-users-bounces+jlightner=water....@lists.isc.org
[mailto:bind-users-bounces+jlightner=water....@lists.isc.org] On Behalf Of
Chuck Swiger
Sent: Wednesday, September 21, 2011 4:15 PM
To: Adamiec, Lawrence
Cc: bind-users@lists.isc.org
Subject: Re: One IP in multiple zones
On Sep 21, 2011, at 12:56 PM, Adamiec, Lawrence wrote:
> Is it possible to have one IP in multiple zone files for forward lookups?
Yes.
> What type of troubles would be encountered?
None. This sort of thing is very commonly done, for example with
shared/virtual webservers.
Regards
--
-Chuck
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