ISA Server overview
There is an explosion of business activities taking place on the Internet. Vast numbers of corporate networks are now connected to the Internet and the need is greater than ever for a powerful and easy-to-administer Internet gateway that provides a secure connection while also enhancing and improving network performance. Microsoft Internet Security and Acceleration (ISA) Server meets these demands by offering a complete Internet connectivity solution that contains both an enterprise firewall and a complete Web cache solution. These services are complementary—you can use either or both of these functions when you install ISA Server in your network.
ISA Server secures your network, allowing you to implement your business security policy by configuring a broad set of rules that specify which sites, protocols, and content can be passed through the ISA Server computer. ISA Server monitors requests and responses between the Internet and internal client computers, controlling who can access which computers on the corporate network. ISA Server also controls which computers on the Internet can be accessed by internal clients.
This section introduces ISA Server. For information about specific topics, see:
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