disabling caching on selected zones

[Barry Margolin]

In article <cg8sei$elq$1 at sf1.isc.org>, Ollie Wild <aaw at rincewind.tv> 
wrote:

> Hi.  I'm running a simple bind configuration on my home network.  The 
> bind daemon is authoritative for my local network.  Any requests outside 
> my local network are forwarded to my ISP:
> 
>     zone  "." {
>             type forward;
>             forward only;
>             forwarders {
>                     xx.xx.xx.xx;
>             };
>     };
> 
> I also have a vpn to my office network, which I only enable 
> occasionally.  The name of our office mail server resolves externally, 
> but access is disabled.  Once the vpn is active, the same hostname 
> resolves to an internal IP from which I can access mail.
> 
> The problem is that named caches the external IP, so everytime I enable 
> the vpn, I have to restart named to access my mail.  Is there a way to 
> explicitly configure bind to disable caching of results from a specific 
> zone?

I don't think so.  But if you have a script that runs to establish the 
VPN, you could have it send a command to named to clear the cache.

-- 
Barry Margolin, barmar at alum.mit.edu
Arlington, MA
*** PLEASE post questions in newsgroups, not directly to me ***