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I have some domain registered with enom.com . From time to time I will do an nslookup domainname.com I get the IP address, however when I put nslookup www.domainname.com it responds can't find www.domainname.com : server failed

After restarting Named I get the same error for domainname.com and www.domainname.com is working as expected

Has any one has seen this issue ?

EDIT : please note the problem is changing between both status . and i am restarting the main name server in our network and the mentioned domain is hosted in another server ...........

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Could you edit you question to include your zone file and named's error log ? –  François Feugeas Nov 5 '09 at 15:06

2 Answers 2

up vote 1 down vote accepted

declare your www subdomain as a CNAME to your A - example of bind9 configs below:

--- named.conf

zone "domainname.com" {
     type master;
     file "/etc/bind/domainname.com";
     allow-update { none; };

--- /etc/bind/domainname.com

@       IN      A       xxx.xxx.xxx.xxx
www     IN      CNAME   @


  • xxx.xxx.xxx.xxx is your IP address (for the domain)

  • there are some parts missing from configs (in the place of SNIP); added only the interesting bits


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Have you actually got a www in your zone file? Just having the name (and the root working) isn't enough to make the www sub domain work.

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