How to setup dns reverse zone
Go to server manager click to tools select dns and right click on reverse lookup zones
Click to New zone
Select primary zone
Select domain to this domain
Select ipv4 reverse lookup zone
Reverse Lookup zone – Type your zone network ID
Dynamic update
And now click to finish
Click to create New PTR
pointer record
Click to browse or type your dns server
Selected dns server
So, now there is no any unknown server
