You can disable it, but that's just workaround.
It would be better to fix it :-)

I would recommend checking logs on resolver which is failing to resolve the domain. I guess you will find out a DNSSEC validation error would tell us what's misconfigured.

My bet is that the internal domains are missing delegation from the parent domain, which was incorrect even before and worked just accidentally.

E.g the ubi.pt zone file needs NS records which point to subdomains Internalsite1.ubi.pt and di.ubi.pt etc.

If you do not want these domains to resolve from outside, just configure ACL on the authoritative servers to not respond to queries from outside of your network.

I hope it helps.
Petr Špaček



On 19. 04. 23 11:27, Darren Ankney wrote:
Hi David,

You can disable validation on one or more domains using "validate-except" - https://bind9.readthedocs.io/en/latest/reference.html#namedconf-statement-validate-except <https://bind9.readthedocs.io/en/latest/reference.html#namedconf-statement-validate-except>

Thank you,

Darren Ankney

On Wed, Apr 19, 2023 at 5:05 AM David Carvalho via bind-users <bind-users@lists.isc.org <mailto:bind-users@lists.isc.org>> wrote:

    Hello guys____

    Asking for your help, again.____

    __ __

    So after setting up DNSSEC I’ve found I couldn’t reach some internal
    sites on my top domain, served by internal DNS servers____

    There’s no need in hiding domains as my e-mail is shown here.____

    __ __

    Top domain____

    __

        

    ____ __

    __ __


    ubi.pt <http://ubi.pt> (external DNS Servers authoritative)____

    __ __

               Internal DNS servers (windows, Active directory -
    Recursive)____

    Internalsite1.ubi.pt <http://Internalsite1.ubi.pt>____

    ____Internalsite2.ubi.pt <http://Internalsite2.ubi.pt>____

    ____                …____

    __ __

    __ __

    di.ubi.pt <http://di.ubi.pt> ____

    (both authoritative and recursive for my networks)____

    __ __

    Previously I had the following to get internal sites resolved, but
    now it seems it is completely discarded by dnssec.____

    __ __

    zone "ubi.pt <http://ubi.pt>" IN {____

             type forward;____

             forwarders { 192.168.100.1; 192.168.100.2; };____

    }____

    __ __

    Is there any configuration to allow me  to be able to access
    internal sites served by internal dns servers, I guess not using
    DNSSEC?____

    Can this only be accomplished by adding these entries to my parent
    domain?____

    Thanks!
--
Visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from 
this list

ISC funds the development of this software with paid support subscriptions. 
Contact us at https://www.isc.org/contact/ for more information.


bind-users mailing list
bind-users@lists.isc.org
https://lists.isc.org/mailman/listinfo/bind-users

Reply via email to