Multiple instances of BIND at startup
Jonathan Chen
jonc at chen.org.nz
Thu May 22 03:59:16 UTC 2008
On Wed, May 21, 2008 at 10:21:05PM -0400, Steve Bertrand wrote:
[...]
> My authoritative name server (service, eventually cluster) will
> eventually house about 500 domains, which I want only recursive DNS
> servers that come from the root .tld down to see (no caching).
>
> The caching name server (service, and eventually cluster) will see tens
> of thousands of our clients requests (we are an ISP) to use as their DNS
> lookup, which will perform recursive lookups that we are not
> authoritative for.
>
> I'm sorry, I don't know how to put it into other words, other than I
> want complete separation from dns authoritative and dns caching services
> to be disparate.
Let's say your authoritative server is listening on IP-A, and your
caching server is listening on IP-B; both ip-addresses are on the same
host. We can have a named instance listening on both addresses, with
multiple views like:
/*
Used by root .tld.
*/
view "authoritative"
{
match-destination
{
IP-A;
};
recursion no;
zone "my.authoritative.org"
{
type master;
...
};
....
}
/*
Use by our client requests.
*/
view "caching"
{
match-destination
{
IP-B;
};
recursion yes;
zone "my.authoritative.org"
{
type master;
...
};
....
}
The "match-destination" inspects the DNS address used by the client to
query to determine which view to use. Would this suit your purpose?
--
Jonathan Chen <jonc at chen.org.nz>
----------------------------------------------------------------------
"Nyuck, nyuck, nyuck" - Curly
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