So here is a dumb question

Imagine I was using Server Admins' DNS service to create a Secondary Zone, for the domain name example.com I click the "Add Zone" button and select "Add Secondary Zone (slave)" I am asked for a "Secondary Zone Name:" and I enter "example.com" then I am asked for the "Primary DNS Servers:" IP address so I enter "192.168.1.211" Is this all I need or do I need to do the exact same thing as above for the PTR record like this. I click the "Add Zone" button and select "Add Secondary Zone (slave)" I am asked for a "Secondary Zone Name:" and I enter "1.168.1.211.in-addr.arpa." then I am asked for the "Primary DNS Servers:" IP address so I enter "192.168.1.211" I know this is a dumb question, sorry :oops: