two nameserver, two ip, one host problem.

Kevin Darcy kcd at
Tue Nov 8 00:14:33 UTC 2005

Sven Vogel wrote:

>first i have a question. is it possible to make an instance of a master
>nameserver on one host? i need two nameserver on one host.
>so i have create an instance from my master nameserver. standalone there is
>no problem the nameserver will work but when i add a second nameserver with
>an extra named.conf and own zone files so i got the problem with the port 53
>and 953. i have two different ips for each nameserver i set the
>listen on to <> and to one of the ips. the problem
>is when i start the second i got the problem with the localhost because he
>is blocked from the other nameserver who is already running.
>i this the right way to do this? so i dont can check my second nameserver
>because there is no working 127 connection. when i use nslookup and dig for
>the first then i can resolve the names or ips. but when i want to resolve
>one name from the second nameserver i get no information. when i stop the
>first nameserver so i can use the second.
>is there any solution to solve this problem?
>maybe acl? i dont know. i read the book bind and dns from albitz and liu
>there is an information about two nameserver on one host but i think not
>enough and its an other way then my. i haved used one interface and two
>alias ip adresse.
You need to configure *both* instances with explicit, non-intersecting 

                        - Kevin

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