TSIG DDNS and windows clients

Pete Fry cadel2010 at googlemail.com
Tue May 12 09:57:23 UTC 2020


All

I've inherited a BIND environment and i'm trying to understand a few things
as currently we are experiences an issue related to DDNS.

we have

site 1
hostA

site 2
hostB

We have a HArecord, and we want HostA or HostB to be able to update the
HArecord (i.e. failover cluster type configuration)

config:
Zone file:

zone "TEST" {
    check-names ignore;
    type master;
    file "/var/named/dynamic/TEST";
    allow-update {
        auth-dns;
        dynamic-TEST;
    };
};

lists.conf

acl dynamic-update-ads {
   192.168.2.1 // hostA
   192.168.5.1 // hostB
   dynamic-TEST-tsig;
};

acl dynamic-TEST-tsig {
   // any host which is not..
   !{
      // not in the new acls
      !dynamic-test-site1;
      !dynamic-test-site2;
      any;
   };
   // but has the key
   key TEST-key;
};


acl !dynamic-test-site1 {
192.168.2.1/32; // HostA
};

acl !dynamic-test-site2 {
192.168.5.1/32; // HostB
};

however these windows machines keep saying bad key, I know i'm missing
something obvious but how do i get this to work?

happy to be able to give the key to the windows boxes if anyone knows
but i'm drawing a blank

Regards

Cade
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