DNS Cache - Bind

[Ted Mittelstaedt]

if your not running with -4 you will get this, unless you
have IPv6 configured of course...

Ted

> -----Original Message-----
> From: owner-freebsd-questions at freebsd.org
> [mailto:owner-freebsd-questions at freebsd.org]On Behalf Of Jack Barnett
> Sent: Tuesday, May 15, 2007 7:46 PM
> To: freeBSD
> Subject: DNS Cache - Bind
> 
> 
> I'm running Bind 9.3.4 on FreeBSD 6.2 for my local network.
> 
> It doesn't have any zones, it's just a local DNS that has a bunch 
> of forwarders.
> 
> The first request is slow (between 150 and 300 ms) - but after that
> (the next query on same domain) is fast (less then 10 ms usually).
> This is nice and working the way I like it. :)
> 
> What I'm wondering though is:
> 
> a) How do I flush the cache if I need to (ie. need to get a new update
> from the forwards) - just restart named?
> 
> b) Are there any settings I can tweak that determine how long the
> cache is kept?  (ie. Say I want to keep all queries for 7 days before
> they are queried from the upstream DNS servers).  [This will probably
> screw up dynamic DNS sites, but want to see what settings are
> available]
> 
> c) Is there a easy way to 'blacklist' sites?  Say I want
> 'SpammerNetwork.com' to resolve to 127.0.0.1.
> 
> Basically I want to take this host file:
> http://www.mvps.org/winhelp2002/hosts.htm
> and then pump it into my DNS server, that way all the LAN clients are
> "protected" from these sites.
> Is there a way to do that?
> 
> 
> -J
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