It would be a nice feature, but in lieu of that, you could always have a script
manage your named.conf and incorporate the variable-substitution logic into
that. If you want to go Old School, use cpp, make, sccs, some of those
long-forgotten tools :-)
- Kevin
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Barry Margolin
Sent: Wednesday, April 01, 2015 10:09 PM
To: [email protected]
Subject: Re: Variable in name of file for named.conf
In article <[email protected]>,
Jeff Sadowski <[email protected]> wrote:
> I have a number of slave domains that I would like a naming scheme and
> not have to go to each and change the filename.
>
> I have the following zones
>
> zone "1.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "2.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "3.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "4.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "5.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "6.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "7.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "8.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "9.168.192.in-addr.arpa" {
> include "named.slave";
> };
> zone "10.168.192.in-addr.arpa" {
> include "named.slave";
> };
>
> named.slave looks as follows
>
> type slave;
> masters {192.168.1.2;};
> file "data/[email protected]";
>
> It appears to work on my queries.
>
> nslookup 192.168.1.2
>
> 2.1.168.192.in-addr.arpa name = pdc.<domain>
>
> nslookup 192.168.1.1
>
> 1.1.168.192.in-addr.arpa name = gw1.<domain>
>
> nslookup 192.168.2.1
>
> 1.2.168.192.in-addr.arpa name = gw2.<domain>
>
> the only file created in my data directory seems to be [email protected] with
> the at sign.
Why would you expect anything different? @ only has special meaning inside zone
files, it's not special in named.conf.
>
> Do I really need to have each zone with its own file?
Yes, you do. What's happening is that every time one of the reverse zones is
transferred, it's overwriting that file. But the files are only used when
initializing the zones when named starts up; you get the correct answers
because the in-memory versions of the zones are distinct. But try restarting
named and then see what happens when you do those nslookups. You'll see that
192.168.1.1 and 192.168.2.1 both return the same name.
>
> Is there a special syntax to get what I expect?
> expected files:
> data/db.1.168.192.in-addr.arpa.slave
> data/db.2.168.192.in-addr.arpa.slave
> data/db.3.168.192.in-addr.arpa.slave
> ...
> data/db.10.168.192.in-addr.arpa.slave
>
> if not I can have Make do it and build some scripts to do what I want
> but if there is syntax to do what I want it would be nice.
No, there's no built-in syntax to create the filename based on the zone name.
--
Barry Margolin
Arlington, MA
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