Weird Occurance

phn at icke-reklam.ipsec.nu phn at icke-reklam.ipsec.nu
Wed Feb 25 20:01:46 UTC 2004


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.

> 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.


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