On Wed, Feb 12, 2003 at 11:09:33AM +0100, Bjarne Wichmann Petersen wrote:
> On Wednesday 12 February 2003 10:43, Frank Tegtmeyer wrote:
> 
> > > 3) Since I'm only aiming for a dns-cache I'm right in assuming I should
> > > keep my hands away from all the zone-stuff?
> > Much better: follow the instructions in
> > http://cr.yp.to/djbdns/install.html and
> > http://cr.yp.to/djbdns/run-cache.html
> > and then forget any dns- and dns related security problems.
> 
> Tried it, but really got confused trying to install it. Ended up having a 
> service dir created all over my system. Never got it to work.
> 
> But looks like I got bind working (my firewall blocked quiries), but it 
> doesn't look like a dnscache is solving my problem. *Still* takes forever for 
> my box to resolve eg. doubleclick.net. This is *REALLY* getting on my nerves 
> to sit and wait -5 minutes for a page to load because some unresolvable 
> server is blocking.
> 
> Anyone know how to solve this issue?

I have just tried to resolve doubleclick.net, and the first hit took
around three seconds.  Thereafter, with it cachedi locally, it came back 
in at most 0.02 seconds.  I reckon your best bet is to persevere - does 
the cache demonstrate any advantage at all?

I put my upstream (ISP's) caches in the forwarders section in named.conf.  
While not strictly necessary, as already pointed out, it can give you the
advantage of tapping into a huge set of cached data on your ISP's servers. 
Suck it and see - I cannot believe that you are the only person connecting
through your ISP who gets pelted with these bloody ads from doubleclick.

Check for messages in /var/log/messages, or whatever file your named
logs to.

> And where *does* named/bind store it's cache-data?

In RAM, where it's most useful.  Using the (r)ndc utility, you can make
it dump its cache to a predefined file if you ever fancy taking a stroll
through it.

-- 
Daniel Bye

PGP Key: ftp://ftp.slightlystrange.org/pgpkey/dan.asc
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