The configured Group Policy object can be applied to all desired Servers by following the options provided below.
Option 1: Linking a Group Policy object to an OU containing desired servers.
Option 2 : Add Servers via "Security Filtering" to a domain linked GPO.
From the Active Directory Users and Computers Console (ADUC) create a "New Organizational Unit (OU)" in the default Domain.
Add all audit required Servers to this Organizational Unit.
Now link the created Organizational Unit to a Group Policy object that has the audit policy "Audit Object Access" configured in it.
Fig: Linking a Group Policy object to an OU containing desired Servers
This scenario is applicable for organizations that maintain a separate OU for various Servers.
Create a Group Policy Object for the "Domain"
Configure the audit policy "Audit Object Access" success/ failure in it.
Add the 'Servers' (Computer Objects) that require audit into the "Security Filtering" settings of this Group Policy Object .
The Settings in the GPO will only be applied to the computers listed under "Security Filtering" settings of the GPMC.
Fig: Add Servers that require audit into the Security Filtering settings of Domain Group Policy Object