Microsoft® Internet Security and Acceleration (ISA) Server 2004 is an extensible firewall and Web-caching server that integrates with Microsoft Windows® 2000 and Microsoft Windows Server2003 to provide enterprises with policy-based access control of all communications moving through the firewall. The Web-cache capabilities of ISA Server 2004 improve both network performance and the end-user experience by storing frequently requested Web content in a local cache.
ISA Server 2004 builds on and extends the security, directory, and VPN features included with Windows 2000 and Windows Server 2003, while offering an easy-to-use interface that simpli¬fies the management of firewall policy. Whether deployed as separate cache and firewall servers or as an integrated firewall and Web-caching solution, ISA Server 2004 can improve the speed of Internet access, maximize employee productivity, and enhance network security for organizations of all sizes.