strange cacheing results

Hulman, Patrick (CCI-Atlanta) Patrick.Hulman at cox.com
Mon Sep 30 18:54:31 UTC 2002




> -----Original Message-----
> From: Cricket Liu [mailto:cricket at menandmice.com]
> Sent: Monday, September 30, 2002 2:29 PM
> To: bind-users at isc.org
> Subject: Re: strange cacheing results
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> > I'm running bind 8.3.3 (straight compile) on solaris 8 boxes.=3D20
> >
> > On Saturday, I recieved notification that my west coast dns=20
> servers were =3D
> > unable to resolve a couple of domains.  I did nslookups on=20
> each and got =3D
> > a non-existent host/domain after a long time period.  Same=20
> results with =3D
> > a dig.  I checked my east coast servers and they were able=20
> to resolve =3D
> > fine. So, I did a namedb dump from ndc and searched for the=20
> domains.  =3D
> > The results were below.
> >
> > dbkassociates   2978    IN      NS      NS8.SAN.YAHOO.COM.      =3D
> > ;Cr=3D3Daddtnl [209.173.58.65]
> >         2978    IN      NS      NS9.SAN.YAHOO.COM.     =20
> ;Cr=3D3Daddtnl =3D
> > [209.173.58.65]
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> I think this entry is for dbkassociates.biz, not=20
> dbkassociates.com, since
> the referring name server was a .biz name server.
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> > geranen 90170   IN      NS      NS1.MYDOMAIN.com.      =20
> ;Cr=3D3Daddtnl =3D
> > [192.12.94.30]
> >         90170   IN      NS      NS2.MYDOMAIN.com.      =20
> ;Cr=3D3Daddtnl =3D
> > [192.12.94.30]
> >         90170   IN      NS      NS3.MYDOMAIN.com.      =20
> ;Cr=3D3Daddtnl =3D
> > [192.12.94.30]
> >         90170   IN      NS      NS4.MYDOMAIN.com.      =20
> ;Cr=3D3Daddtnl =3D
> > [192.12.94.30]
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> This cached data looks fine.  Did you see any negative cache entries?
> What domain names were your West Coast name servers unable to resolve?
these two were the only ones that i knew of that it couldn't resolve.  =
It was able to resovle almost everything else.  Also, I didn't see any =
negative cache entries for these.
> (snip some stuff)
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> I don't see any indication of why the West Coast name servers' name
> resolution failed.
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> cricket
Well, I feel a little better knowing there wasn't something obvious.=20


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