1. A method for managing policies within a network intermediary device, comprising: opening, in response to a request from a client to the network intermediary device, a network connection between the client and the network intermediary device so long as said connection is permitted by a policy having rules relating to network connections; processing a transaction over the network connection according to one or more additional policies; upon completion of the transaction, determining if the network connection should be closed, and closing or not closing the connection accordingly; and in the event the connection is not closed, reusing, subject to the additional policies, the connection for further transactions with the client.