Weird Occurance

[tnaves at linkwest.net]

On Wed, 25 Feb 2004 phn at icke-reklam.ipsec.nu wrote:

> tnaves at linkwest.net wrote:
> > I have set up two dns servers on Redhat using BIND 9.  My network is
> > behind a firewall.  I have a named.cache file.  When a name cannot be
> > resolved from the local database, it uses the hints file to go to th ro=
> ot
> > servers and the name is resolved.
> 
> > A strange thing happened day before yesterday.  Suddenly I could not
> > resolve some names e.g., google.com, while other names e.g., hp.com wol=
> d
> > resolve just find.  Then, after an hour or so, everything started worki=
> ng
> > again.  The ttl on my servers is set to 86400 as is the negative cachin=
> g
> > ttl.
> 
> > Could this have been due to caching some bad names?  Is there a way to =
> see
> > what is in cache?
> 
> rndc dumpdb will show your cache.
> 
> 
> Posting your named.conf would give better hints ...
> 
> What you have set up as TTL has nothing to do with caching from other ser=
> vers,
> it will only affect the zones you are auhtorative for.

What controls the ttl on records in my cache that it has gotten from other
servers.  Also, thanks for the tip on dumping the data base.  I noticed
that it contains only names that are from other servers, none from mine.
A lot of them are glue records, is that normal?

 > > Thanks,
> 
> > Tom Naves
> 
> 
> 
> --=20
> Peter H=E5kanson        =20
>         IPSec  Sverige      ( At Gothenburg Riverside )
>            Sorry about my e-mail address, but i'm trying to keep spam out=
> ,
> 	   remove "icke-reklam" if you feel for mailing me. Thanx.
> 
> 
>