[SOLVED] setting external DNS for one zone in Bind

hortageno · 03-03-2016, 05:15 AM

Hi everyone.

I hope this is the correct sub forum for Bind related questions. If not, feel free to move my post.

I'm trying to configure an external DNS for one zone different from the other forwarders.

I created the following zone file /etc/bind/db.example.com

Code:

$TTL    604800
example.com.     IN      SOA     ns1.dreamhost.com. hostmaster.dreamhost.com. (
                        27
                        604800
                        86400
                        2419200
                        604800 )
;
example.com.     IN      NS      ns1.dreamhost.com.
example.com.     IN      NS      ns2.dreamhost.com.

and included it in /etc/bind/named.conf.local

Code:

zone "example.com." {
        type master;
        file "/etc/bind/db.example.com";
        };

But it is not working at all and I can't figure out, why. When I run

Code:

dig any example.com @ns1.dreamhost.com

it shows me all configured records.

The reason why I'm trying to do this is, I'm in the process of moving a domain to a different registrar/hoster. I setup all subdomains, email accounts etc. and want to test everything from my LAN before changing the nameserver at my old provider.

zhjim · 03-03-2016, 07:46 AM

http://www.zytrax.com/books/dns/

You might miss the A records for {ns1,ns2}.dreamhost.com. Not sure. Check out the book.

hortageno · 03-03-2016, 08:12 AM

Quote:

Originally Posted by zhjim

http://www.zytrax.com/books/dns/

You might miss the A records for {ns1,ns2}.dreamhost.com. Not sure. Check out the book.

I thought that too, but I can't put the A records in the same zone file as bind will complain about them not being in the same zone. And also {ns1,ns2}.dreamhost.com already resolve on my DNS through the forwarders I already setup. And the A records could change at any time without me noticing it. I don't have control over them.

/etc/bind/named.conf.options

Code:

...
forwarders {
        208.67.222.222;
        208.67.220.220;
        8.8.8.8;
        8.8.4.4;
        };
...

Edit: I found in the link what I needed to do. The term I had to look for is "Per Domain Forwarding". From the book:

Code:

// zone section fragment of named.conf 
zone "example.com" IN {
	type forward;
	forwarders {10.0.0.1; 10.0.0.2;};
};

Though it only accepts IP's as forwarders, not names. But I can live with that for now.

Thanks very much

zhjim · 03-03-2016, 09:46 AM

Your welcome. This book helped me out tons. I really like it.

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