[Gllug] DNS problem

[Xander D Harkness]

That is the tricky thing at present,
  Davros and spitfire are the same machine.

The router that operates on this leased line, provided by Telewest does 
not update its arp records unless I reboot it, thus I cannot move the 
two IPs from that machine until I can reboot the router.  If I switch 
IPs they are seen on the local network but not live on the internet. 
Being based in Belgium at present makes the rebooting operation difficult.

I therefore only have one DNS server until I can get back.

That DNS server has been shown that it can do a reverse lookup on the 
213.48.46.196 IP.


[root at davros named]# nslookup 213.48.46.196
Server:  davros.wildthorn.com
Address:  213.48.46.196

Name:    davros.wildthorn.com
Address:  213.48.46.196

[root at davros named]# nslookup 213.48.46.206
Server:  davros.wildthorn.com
Address:  213.48.46.196

Name:    spitfire.wildthorn.com
Address:  213.48.46.206

I have no idea why I get the timeout from some remote servers.

Kind regards
Xander

Paul Nasrat wrote:
> On Thu, Aug 02, 2001 at 12:43:34PM +0200, Xander D Harkness wrote:
> 
>>I have a problem with my DNS.
>>
>>I am able to query my dns normally using Linux from a variety of locations.
>>
>>If, however I do an nslookup from some windows boxes I get a timeout.
>>
> 
> 
> [whois.nic.uk]
> 
> Domain Name: HARKNESS.CO.UK
> 
> Registered For: Mr Alexander Harkness
> 
> Domain Registered By: TELEWEST
> 
> Registered on 16-Feb-1998.
> 
> Record last updated on 26-Jul-2001 by <hostmaster at cableinet.net>.
> 
> Domain servers listed in order:
> 
> DAVROS.WILDTHORN.COM              213.48.46.196
> SPITFIRE.WILDTHORN.COM            213.48.46.206
> 
> WHOIS database last updated at 02:35:01
> 02-Aug-2001
> 
> The NIC.UK Registration Host contains ONLY
> information for domains
> within co.uk, org.uk, net.uk, ltd.uk and
> plc.uk.  Please use the whois
> server at rs.internic.net for Internet
> Information or the whois server
> at nic.ddn.mil for MILNET Information.
> 
> Dig gives:
> 
> ; <<>> DiG 8.3 <<>> @davros.wildthorn.com harkness.co.uk soa 
> ; (1 server found)
> ;; res options: init recurs defnam dnsrch
> ;; res_nsend to server davros.wildthorn.com  213.48.46.196: Connection timed out
> 
> Looks like this is your guilty party.
> 
> 
> Starting nmap V. 2.54BETA22 ( www.insecure.org/nmap/ )
> Interesting ports on davros.wildthorn.com (213.48.46.196):
> Port       State       Service
> 53/tcp     open        domain                  
> 
> 
> Nmap run completed -- 1 IP address (1 host up) scanned in 1 second
> 
> hmm open, lets see what it does when we do an nslookup
> 
> [root at now0628 paul]# /usr/sbin/tethereal host davros.wildthorn.com
> Kernel filter, protocol ALL, raw packet socket
> Capturing on eth0
>   0.000000 now0628.uk.now.com -> davros.wildthorn.com DNS Standard query
>   PTR 196.46.48.213.in-addr.arpa
>     4.992352 now0628.uk.now.com -> davros.wildthorn.com DNS Standard
>     query PTR 196.46.48.213.in-addr.arpa
> 
> 
> [paul at now0628 paul]$ nslookup - spitfire.wildthorn.com
> Default Server:  spitfire.wildthorn.com
> Address:  213.48.46.206
> 
> 
>>set type=ptr  
>>196.46.48.213.in-addr.arpa
>>
> Server:  spitfire.wildthorn.com
> Address:  213.48.46.206
> 
> 196.46.48.213.in-addr.arpa      name = davros.wildthorn.com
> 196.46.48.213.in-addr.arpa      nameserver = davros.wildthorn.com
> 196.46.48.213.in-addr.arpa      nameserver = spitfire.wildthorn.com
> davros.wildthorn.com    internet address = 213.48.46.196
> spitfire.wildthorn.com  internet address = 213.48.46.206
> 
> Seems good in ptr record.  Check what dns settings are on davros in
> /etc/resolv.conf (ie can it get it's own ptr record).
> 
> Paul
> 
> 



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