How to Prevent Registration of A and GC For Domains Controllers

How to Prevent Registration of A and GC For Domains Controllers 

Simple Steps Given Below:-

• DomainName.Com    A   IP_Address

• gc._msdcs.DomainName.Com     A    IP_Address

You can use the below mentioned registry entry on the domain controllers to dis-allow registration of these records:

• KEY Name: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\NetLogon\Parameters
• Entry Name: RegisterDnsARecords
• Data: DWORD
• Value: 1 (Register A Records), 0 (Do not register A Records)

Note: This regsitry entry does not exist by default.