ISA Server 2006 is the integrated edge security gateway that helps protect your IT environment from Internet-based threats while providing your users with fast and secure remote access to applications and data. ISA Server 2006 Release Candidate is available for download in both Standard Edition and Enterprise Edition.
ISA Server 2006 makes it easier to provide security for corporate applications accessed over the Internet by pre-authenticating users before they gain access to any published servers, inspecting even encrypted traffic at the application layer in a stateful manner, and providing automated publishing tools. In addition, by providing HTTP compression, caching of content including software updates, and site-to-site VPN capabilities integrated with application-layer filtering, ISA Server 2006 makes it easier to securely expand corporate networks. ISA Server 2006 also makes it easier to manage and protect your network with a hybrid proxy-firewall architecture, deep content inspection, granular policies, and comprehensive alerting and monitoring capabilities.