Question Sophos UTM as Internal DNS Server with Domain.local

Hello,

I have some questions to the DNS Best Practice Configuration https://community.sophos.com/kb/en-us/120283 as I use the UTM with domain.local

Hostname: mysophos

Network Definitions:

Name: mysophos

Type: Host

IP: 192.168.0.1

DNS Settings: mysophos.domain.local

Reverse DNS: marked

All other Devices like Laptop, Printer, Access Point in DMZ, etc. are created as Host Definitions.

Network Services DNS

Allowed Networks:

Internal Network

DMZ Network

DNS Forwarders:

DNS Group – Availability Group with Cloudflare DNS 1 and Cloudflare DNS 2

User Forwarders by ISP – not checked

Request Routing:

domain.local to mysophos

My questions, with the setting request Routing domain.local to mysophos and created host definitions would this be enough for the internal dns resolution or do I have to add the 168.192.in-addr.arpa record for all networks as well, or just when I would like to have the names instead of ip address in the reports? Would this be the fastest way for Internal DNS Resolution with the UTM?

How can I check that the created DNS Forwarders to Cloudflare are working correct?

Thx