Re: Need help with a DNS problem

[Yang Xiao]

On Mon, 30 Aug 2004 15:32:40 -0400, Allen Winter <winterz(a)verizon.net&gt; 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(a)verizon.net&gt;
>  To: For users of Fedora Core releases <fedora-list(a)redhat.com&gt;
>  
>  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