forward only recursive server doesn't forward

[Matus UHLAR - fantomas]

On 19.10.16 21:27, Alex wrote:
>I have a bind-9.10.3 server on fedora22 that is authoritative for a
>few domains and their corresponding IP ranges. I'd like to set up
>another domain server (rbldnsd) on a host in one of those domains as a
>forward-only server.

>The problem appears to be that the queries from the local box to the
>subdomain being managed by the rbldnsd server are being answered by
>the local bind instead of being sent to the remote machine running
>rbldnsd.

>In other words, I believe the issue is that the host is already
>authoritative for the reverse zone, so there would be no reason for it
>to forward these queries to another system.

Mark already took care of first part of your post.

>zone "96/28.104.104.66.in-addr.arpa" {
>        type slave;
>        file "slaves/db.104.104.66";
>        masters { 64.1.1.3; };
>        allow-query { any; };
>        allow-transfer { trusted; };
>};


>I set up the reverse zone a long time ago, and I don't think the "zone
>96/28.104.104.66.in-addr.arpa" is completely correct, but it appears
>to work. I'm not sure if that's related to the problem, but would
>appreciate advice there.

The domain 96/28.104.104.66.in-addr.arpa is completely correct, however the
DNS clients must know they have to search for this domain.

Thus, you must ask your ISP to delegate part of 

104.104.66.in-addr.arpa to your subdomain:

96/28	IN	NS	your.server.name.
96	IN	CNAME	96/28
97	IN	CNAME	97/28
...
111	IN	CNAME	111/28


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