DNS lookups gone on coffee break

[Matthew Carpenter]

Does this continue to occur if you restart Bind(or have you)?

How old is the db.cache file? (An updated version can be found at ftp://ftp.internic.net/domain/db.cache)

Is the 127.0.0.0 zone correct?  Oddly enough, this has been known to cause some timeout messages, but generally the server still works.

What are the clients which are unable to resolve?  Win2k or XP?  Have you tried flushing the cache with "ipconfig /flushdns"?

Assuming that the DNS server is using itself as the DNS resolver (nameserver 127.0.0.1 is in /etc/resolv.conf), using nslookup with "set query=any" what information can you pull for linuxworld.com?

Using nslookup from the DNS server, use "server 69.33.10.246" and look for any information about linuxworld.com.  Does this bring back any information?

How about using "server dns1.n-ary.com" and "scotland.sys-con.com"?
These are the DNS servers for linuxworld.com

If you are not able to access the last two servers, you may have some issues communicating with those DNS servers.  This could be from Firewalling, Routing, or even using a broken Netmask.  

Good luck!


On 24 Dec 2003 11:28:33 -0600
Shawn L Johnston <sjohnston at satshot.com> wrote:

> On Tue, 2003-12-23 at 13:26, David A. Bandel wrote:
> > 
> > when you changed IPs did you stop then restart bind?
> 
> Yes I did.
> 
> > do you have split horizon configured?
> > is either horizon non-recursive?
> 
> I'm going to look this up as I'm not sure what that is. I'm guessing I'm
> not using this.
> 
> > can you post your named.conf (no need to include your zones, and please
> > xxx out the rndc key)?
> 
> Attached below.
> 
> > when is the last time you updated your hints zone: dig
> > @b.root-servers.net > named.root ?
> > 
> 
> It had been at least a year since this was updated, it doesn't seem to
> have solved the issue though.
> 
> Many thanks!
> 
> Shawn
> 
> named.conf
> ----------------
> options{
>            directory "/var/named";
>            // Place other options here
>    };
>                                                                                                                                                     
>    controls {
>            inet * port 953 allow { any; } keys { "rndc-key"; };
>    };
>                                                                                                                                                     
>    include "/etc/nkeys/rndc.key";
>    include "/etc/nkeys/ns4.key";
>                                                                                                                                                     
>    zone "satshot.com" in {
>            type master;
>            file "db.satshot.com";
>    };
>                                                                                                                                                                                                                                                                                                         
>    zone "245.21.64.in-addr.arpa" in {
>            type master;
>            file "db.64.21.245";
>    };
>                                                                                                                                                     
>    zone "0.0.127.in-addr.arpa" in {
>            type master;
>            file "db.127.0.0";
>    };
>                                                                                                                                                     
>    };
>                                                                                                                                                     
>    zone "." in {
>            type hint;
>            file "db.cache";
>    };
> 
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> 


-- 
Matthew Carpenter 
matt at eisgr.com                          http://www.eisgr.com/

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