SECURITY IN DOMAIN NETWORK

                    In a domain network, security policies are applied using the following tools present in the DC:

Domain Controller Security Policy: - This tool is used to apply security only on the domain controller.

Domain Security Policy: - This tool is used to apply security on the clients in the domain network and also on the DC.

Group Policy: - Group Policy can be used to apply security policies on the domain, organization unit (OU) and the site. To apply Group Policy, we use Group Policy Object (GPO). GPO is a set of security settings that can change behavior of computers.

APPLYING GROUP POLICY ON THE DOMAIN

1. Go to your DC and open 'Active Directory Users and Computers'.
2. Right-click on the domain-name (e.g., xyz.com) > properties > Group Policy.
3. Click on New and give a name to the policy.
4. Click on Up.
5. Click on Edit. Group Policy Object Editor will open.
6. Edit your policies and close the Editor.
7. Click Apply and O.K.
8. In the RUN, type cmd > O.K. and give the command:
              gpupdate
9. Press Enter.
10. Restart the client computers which must be the member of the domain.