You can specify the action to be taken by the server when a request matches the access control rule.
Allow means users or systems can access the requested resource
Deny means users or systems cannot access the resource
The server scans the list of access control expressions (ACEs) to determine the access permissions. For example, the first ACE is usually to deny everyone. If the first ACE is set to “continue,” the server checks the second ACE in the list, and if it matches, that ACE is used. If continue is not selected, everyone would be denied access to the resource. The server continues down the list until it reaches either an ACE that doesn’t match, or that matches but is set to not continue. The last matching ACE determines if access is allowed or denied.