DNS forwarding

**sheru_kl** · 01-06-2004

Hi to all,
Can anyone please help in setting up my dns. I have to create a dns server on my server which has a fresh installation of linux 9.1. But the problem this DNS server dont have any database to resolve host address, So what i have to do is call one of my ISP's DNS from my dns server and resolve the address. I dont know how to do this...How to call external dns server from my dns server. I tried creating slave zone and adding ISP's DNS ip's in master but it didn't worked...I hope i m clear...Please help me...

**Dolda2000** · 01-08-2004

Are you using BIND as you DNS server? In that case, create a "hint" zone for the root domains, something like this:

In named.conf:

Code:

zone "."
&#123;
        type hint;
        file "root.hint";
&#125;;

In root.hint (which should be in BIND's root dir):

Code:

.       3600000 IN      NS      ns1.isp.tld
ns1.isp.tld.   3600000         A       <IP address>
.       3600000 IN      NS      ns2.isp.tld
ns2.isp.tld.   3600000         A       <IP address 2>

**Giro** · 01-09-2004

And at the top of named.conf you will see

Code:

fowarders &#123;
    x.x.x.x
    x.x.x.x
&#125;

Comment this out and enter your ISP's DNS's IP address here HTH.

**Dolda2000** · 01-09-2004

Interesting. I haven't seen the forwarders option until now. Giro, do you know what the practical differences are between specifying them this way or in the root hint?

**Giro** · 01-09-2004

Havent a clue what the differnce is i used this txt http://www.faqs.org/docs/securing/chap21sec164.html . Im switching to djbdns now from what ive read its alot more secure by design and better for what i need which is only caching.

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