I would start by checking the antispoofing configuration.  Rule 0 items are
indicative of 1) spoofing notifications 2) return connections coming in on known
service ports.

MIS wrote:

> how to fix a problem of nameserver query reject by rule 0
> >from internal network to DNS server in DMZ
>
> I got the following option checked in the Properties Setup
>
> Accept Domain Name over UDP (Queries)                   First
> Accept Domain Name over TCP (Zone Transfer)             First
>
> thanks in advance
>
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