‘’’ modparam("dmq", "server_address", "sip:10.6.1.200:5260") modparam("dmq", "notification_address", "sip:ka.ns.com:5260") ‘’’
^^ this will work just fine as it is, provided ka.ns.com resolves to all four nodes - or at least one other than itself.
Why, in your second example, does it only resolve to itself?