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Chapter 2: Establishing Filtering PoliciesWorking with protocol filtersJust as URL category filters provide the basis for Internet site filtering,protocol filters are the basis for filtering Internet content by protocol.<strong>Websense</strong> Express includes 4 predefined protocol filters. These are markedwith an asterisk (*) in <strong>Websense</strong> Manager to indicate that they cannot beedited or deleted.Basic: Blocks commonly-restricted protocols, especially those used forpeer-to-peer file sharing and proxy avoidance.Monitor Only: Permits all protocols, and allows logging and reporting onall protocols.Never Block: Allows total, unrestricted access to all protocols.Typical: Blocks instant messaging, peer-to-peer file sharing, and proxyavoidance protocols. The Typical protocol filter is initially assigned to theDefault policy.36 <strong>Websense</strong>, Inc.
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