third dns server

Mark Andrews marka at isc.org
Tue Jun 23 07:41:49 UTC 2009


In message <BF3E45B0CA194F87B056509007E02C7A at 78c919988d2b476>, "Mohammed Ejaz" 
writes:
> 
> We have been receiving complain by our client, during the primary DNS
> servers are down that is ns1.xyz and ns2.xyz is down. And as per the
> configuration at saudinic.net.sa (domain Registrar Company) we were
> expecting that during the outage of primary name servers then ns3.abc will
> handle all the requests behalf of them, but it won't. So please could you
> advice us what could be the issue why it is not working as per
> configuration.

	Choose sane SOA timer values.  An expire of 1 day is way too
	short.  A week is a reasonable minimum value for this field.

	You should also fix the MNAME and RNAME fields.
	ns3 should be ns3.mot.gov.sa.
	hostmaster should be hostmaster.mot.gov.sa.
	
SOA ns3. hostmaster. 50 900 600 86400 3600 from server ns4.mot.gov.sa in 2066 ms.
SOA ns3. hostmaster. 50 900 600 86400 3600 from server ns3.mot.gov.sa in 1213 ms.
SOA ns3. hostmaster. 50 900 600 86400 3600 from server ns2.cyberia.net.sa in 431 ms.

> Here is the actual domains which we are facing and issues, but Please not
> that when ever am configuring manually ns2.cyberia.net.sa in my PC then all
> the services (web,mail) are working fine 
> 
>  
> 
> > mot.gov.sa
> 
> Server:  ns2.cyberia.net.sa
> 
> Address:  212.119.64.3
> 
>  
> 
> mot.gov.sa      nameserver = ns4.mot.gov.sa (down) 
> 
> mot.gov.sa      nameserver = ns2.cyberia.net.sa ( up and working)  
> 
> mot.gov.sa      nameserver = ns3.mot.gov.sa (down)
> 
> ns2.cyberia.net.sa      internet address = 212.119.64.3
> 
> ns4.mot.gov.sa  internet address = 212.119.69.222
> 
> ns3.mot.gov.sa  internet address = 212.119.69.221
> 
>  
> 
> ejaz 
-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: marka at isc.org



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