bind9 cache

[Mark Andrews]

In message <20101227132531.27408gvuita79fi0 at mail.junc.org>, Benny Pedersen writ
es:
> On l=F8r 04 dec 2010 22:45:56 CET, Barry Margolin wrote
> 
> > You can't.  You can configure a max cache time, but not a minimum.
> >
> > Why do you think this is a good idea?  With your method, it would have
> > to do two queries whenever a record's TTL has expired: first check the
> > SOA to see if it has changed, then query the record.  The standard
> > algorithm just queries for the record you want.
> 
> okay, just readed this today, still have problems with some zones that
> need to be defined in named.conf for hostnames not lokal :/
> 
> a example is that rfc-ignorant.org does not being found if i remove it
> in named.conf as forward, is there a way i can debug this in verbose ?
> when i had a ip in 80.x.x.x there was nearly none problems with dns,
> but after i get one new ip in 2.x.x.x then there is half of public dns
> failing :/

You are falling foul of out of date filters.  2/8 was only allocated
2009-09 so you will still find sites that are blocking packets from /
route for 2/8.

Mark
 
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-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org