Overview

Microsoft Internet Security and Acceleration (ISA) Server 2000 is an extensible, multilayer enterprise firewall and Web cache that helps provide secure, fast, and manageable Internet connectivity. ISA Server is an integrated solution optimized for application-layer defense, networking on a virtual private network (VPN), stateful packet inspection, and secure publishing to help protect customer installations. ISA Server also provides a sophisticated, scalable, high-performance Web proxy and cache that improves performance and saves network bandwidth resources.

ISA Server is available in two editions:

• ISA Server Enterprise Edition is designed for large-scale deployments with high-volume Internet traffic environments. It supports multiserver arrays with centralized management as well as enterprise-level and array-level security policy. Enterprise Edition has no hardware limits.
• ISA Server Standard Edition shares the rich feature set of Enterprise Edition, but it is intended for small businesses, workgroups, and departmental environments. Standard Edition provides local policy only, and supports up to four processors.