The Common Objects pages (located under Policies > Common Objects in Deep Security Manager) provide a way to define objects once so that you can reuse
them various policies and rules. When you use one of the common objects in the policy
or computer editor, its settings can be overridden for that specific policy or computer.
For more information on how common object properties can be inherited and overridden
at the policy or computer level, see Policies, inheritance, and overrides.
Rules
Some protection modules make use of rules: