Just 1 out of 2 name servers responding request

Mark_Andrews at isc.org Mark_Andrews at isc.org
Thu Oct 16 23:58:28 UTC 2003


	Bad firewall.  There appears to be a nameserver running but
	there is a firewall blocking the UDP port.

	Mark

TCP query:

09:52:54.091092 211.29.163.60.1130 > 212.43.245.104.53: S 988766942:988766942(0) win 57344 <mss 1460,nop,wscale 0,nop,nop,timestamp 358157194 0> (DF)
09:52:54.425231 212.43.245.104.53 > 211.29.163.60.1130: S 3228300121:3228300121(0) ack 988766943 win 5792 <mss 1460,nop,nop,timestamp 1090035583 358157194,nop,wscale 0> (DF)
09:52:54.425366 211.29.163.60.1130 > 212.43.245.104.53: . ack 1 win 57920 <nop,nop,timestamp 358157227 1090035583> (DF)
09:52:54.425615 211.29.163.60.1130 > 212.43.245.104.53: P 1:42(41) ack 1 win 57920 <nop,nop,timestamp 358157227 1090035583> 39649[|domain] (DF)
09:52:54.764823 212.43.245.104.53 > 211.29.163.60.1130: . ack 42 win 5792 <nop,nop,timestamp 1090035757 358157227> (DF)
09:52:54.765689 212.43.245.104.53 > 211.29.163.60.1130: P 1:121(120) ack 42 win 5792 <nop,nop,timestamp 1090035757 358157227> 39649*[|domain] (DF)
09:52:54.768754 211.29.163.60.1130 > 212.43.245.104.53: F 42:42(0) ack 121 win 57920 <nop,nop,timestamp 358157262 1090035757> (DF)
09:52:55.102747 212.43.245.104.53 > 211.29.163.60.1130: F 121:121(0) ack 43 win 5792 <nop,nop,timestamp 1090035930 358157262> (DF)
09:52:55.102940 211.29.163.60.1130 > 212.43.245.104.53: . ack 122 win 57920 <nop,nop,timestamp 358157295 1090035930> (DF)

UDP query:

09:53:00.849270 211.29.163.60.4774 > 212.43.245.104.53:  12619 A? createur-internet.com. (39)
09:53:01.184069 212.43.245.104 > 211.29.163.60: icmp: 212.43.245.104 udp port 53 unreachable [tos 0xc0] 

> Hi everybody,
> I have a problem since along time now an that I didn't resolve althought I
> almost read all the DNS & BIND of O'reilly !
> I have 2 name servers : jupiter.oxyd.fr and ns0.createur-internet.com .
> 
> I want these 2 servers are the DNS of www.createur-internet.com
> ns0.createur-internet.com is the master primary server et jupiter.oxyd.fr
> the slave.
> this web site works but when I run http://www.dnsreport.com/
> I have some Warnings and specially this one :
> "
> WARN All nameservers report identical NS records WARNING: At least one of
> your nameservers did not return your NS records (it reported 0 answers).
> This could be because of a referral, if you have a lame nameserver (which
> would need to be fixed).
> 
> 212.43.245.104 returns 0 answers (may be a referral)
> "
> that I can't solve. Everytime I want to resolve name of
> createur-internet.com, I must go throught jupiter.oxyd.fr, this is boring...
> 
> here the named configuration of createur-internet.com
> 
> **********
> 
> $ttl 38400
> createur-internet.com.  IN      SOA     ns0.createur-internet.com.
> admin.createur-internet.com. (
>                         1063918372
>                         10800
>                         3600
>                         604800
>                         38400 )
>                         IN      NS      ns0.createur-internet.com.
>                         IN      NS      jupiter.oxyd.fr.
> 
> 
>         IN      A       212.43.245.104
> ns0.createur-internet.com. IN   A       212.43.245.104
> www     IN      CNAME   ns0
> mail    IN      CNAME   ns0
> 
> 
> createur-internet.com.  IN      MX      20 ns0.createur-internet.com.
> createur-internet.com.  IN      MX      100 jupiter.oxyd.fr.
> 
> *********
> 
> Any help will be appreciated !
> 
> 
> 
> 
--
Mark Andrews, Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at isc.org


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