Need help with a DNS problem

[Yang Xiao]

On Mon, 30 Aug 2004 15:32:40 -0400, Allen Winter <winterz at verizon.net> wrote:
> Hi,
> 
> A few months ago I posted the enclosed message and was given the fix to turn off ipv6 support,
> which has worked fine for me ever since (i.e, add the line 'install ipv6 /bin/true' to /etc/modprobe.conf)
> 
> Recently the DNS problems I described have come back... I did upgrade a new kernel using yum.
> I still see the ipv6 line in my /etc/modprobe.conf file so I am at a loss.  Any ideas as to what may
> be causing resolver "dropouts"??
> 
> Regards and Help!
> Allen
> -------------------
> 
> Subject: Need help with a DNS problem
> Date: Friday 04 June 2004 01:04 pm
> From: Allen Winter <winterz at verizon.net>
> To: For users of Fedora Core releases <fedora-list at redhat.com>
> 
> Howdy,
> 
> I am having a strange issue on my new Fedora Core 2 install with DNS.
> 
> I have three systems connected to ADSL via a Netgear WGR214v2 Router,
> with one running Redhat 9, one running FC1, and the other my new FC2 system.
> 
> The Redhat system is running dhcpcd and has no problem getting addresses.
> The FC1 system is running dhclient and had no problem getting addresses.
> 
> The new FC2 system is also running dhclient and fails to get addresses for only
> a *few* names I've encountered so far.  And dig will give me an answer for those
> names, but nslookup will fail.  I have looked up everything I know and compared
> the FC1 and FC2 systems and they look to be configured the same.
> 
> For example,
> % dig myfidelity.members.fidelity.com
> 
> ; <<>> DiG 9.2.3 <<>> myfidelity.members.fidelity.com
> ;; global options:  printcmd
> ;; Got answer:
> ;; ->>HEADER<<- opcode: QUERY, status: NXDOMAIN, id: 3837
> ;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 1, ADDITIONAL: 0
> 
> ;; QUESTION SECTION:
> ;myfidelity.members.fidelity.com. IN    A
> 
> ;; ANSWER SECTION:
> myfidelity.members.fidelity.com. 6056 IN CNAME  myfidelity.members.retail.fidelity.com.
> 
> ;; AUTHORITY SECTION:
> retail.fidelity.com.    52      IN      SOA     dns3dccfw01.fidelity.com. hostmaster.retail.fidelity.com. 2004060332 10800 3600 604800 60
> 
> ;; Query time: 25 msec
> ;; SERVER: 192.168.0.1#53(192.168.0.1)
> ;; WHEN: Fri Jun  4 13:01:26 2004
> ;; MSG SIZE  rcvd: 148
> 
> % nslookup myfidelity.members.fidelity.com
> Server:         192.168.0.1
> Address:        192.168.0.1#53
> 
> ** server can't find myfidelity.members.fidelity.com: NXDOMAIN
> 
> Oh, and I forgot to mention that every now and then nslookup will return an address for myfidelity.members.fidelity.com,
> but that is not the typical case.
> 
> Any ideas?
> Regards,
> Allen
> 
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what's your /etc/resolv.conf look like?

Yang