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
>=20
>=20
>=20
> > 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]
>=20
> I think this entry is for dbkassociates.biz, not=20
> dbkassociates.com, since
> the referring name server was a .biz name server.
>=20
> > 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]
>=20
> 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)
>=20
> I don't see any indication of why the West Coast name servers' name
> resolution failed.
>=20
> cricket
Well, I feel a little better knowing there wasn't something obvious.=20
>=20
> Men & Mice
> DNS Software, Training and Consulting
> www.menandmice.com
>=20
> The DNS and BIND Cookbook, coming October 2002!
> http://www.oreilly.com/catalog/dnsbindckbk/
>=20
>=20
>=20
More information about the bind-users
mailing list