Microsoft Internet Security and Acceleration Server
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| Developer(s) | Microsoft |
|---|---|
| Stable release | Microsoft Internet Security and Acceleration Server 2006 |
| Operating system | Microsoft Windows Server |
| Type | firewall, virtual private network, web cache |
| License | Proprietary |
| Website | Microsoft Internet Security and Acceleration Server Homepage |
Microsoft Internet Security and Acceleration Server (ISA Server) is described by Microsoft as an "integrated edge security gateway". Originating as Microsoft Proxy Server, ISA is a Firewalling & Security product based on Microsoft Windows primarily designed to securely publish webservers and other server systems, provide Stateful, Application-Layer Firewalling, act as a VPN endpoint, and provide Internet Access for client systems in a Business Networking environment.
ISA 2000 and 2004 have also been included in the Premium Edition of Microsoft Small Business Server, as well as being sold as Appliance devices by a number of Third Party vendors.
Contents |
[edit] Current Version
ISA 2006 introduces a variety of improvements upon the previous version, ISA 2004, including support for authentication via Secure LDAP, (LDAPS) to multiple LDAPS providers or Active Directory forests, integrated support for Exchange 2007 (also backported to ISA 2004), support for publishing Microsoft SharePoint, Single sign-on, Cross-Array Link Translation, Web Publishing Load Balancing (with cookie-based affinity for Integrated NLBS) as well as variety of improvements to wizards such as a Branch Office VPN Connection Wizard, improved certificate management, and Link translation. ISA Server 2006 is only available in a 32 bit version. It also does not work on Windows Server 2008 due to the extensive changes to the networking stack.
[edit] Versions
[edit] Microsoft Proxy Server
The ISA Server product line originated with Microsoft Proxy Server. Developed under the code-name "Catapult"[1], Proxy Server v1.0 was first launched in January 1997[2], and was designed to run on the Windows NT 4.0 platform. Proxy Server v1.0 was a basic product designed to provide Internet Access for clients in a LAN Environment via TCP/IP. Support was also provided for IPX/SPX networks (primarily used in legacy Novell NetWare environments), through a WinSock translation/tunnelling client which allowed TCP/IP applications, such as web browsers, to operate transparently without any TCP/IP on the wire. Although well-integrated into the NT4 platform,[3] Proxy Server v1.0 only had basic functionality, and came in only one edition. Extended support for Proxy Server v1.0 ended on March 31, 2002.[2]
Proxy Server v2.0 was launched in December 1997,[4] and included better NT Account Integration, improved Packet Filtering support, and support for a wider range of Network Protocols. Proxy Server v2.0 exited the extended support phase and hit End of Life on the 31st of December 2004.[4]
[edit] ISA 2000
On the 18th of March 2001, Microsoft launched ISA 2000.[5] ISA 2000 introduced the Standard and Enterprise editions which ISA continues to ship under, with Enterprise-grade functionality such as High-Availability Clustering not included in the Standard Edition. ISA 2000 required Windows 2000 (any edition), and will also run on Windows Server 2003. In accordance with Microsoft's Support Lifecycle Policy, ISA 2000 was the first ISA product to use the 10 year support lifecycle with 5 years of Mainstream support and five years of Extended support. ISA 2000 reaches End of Life on the 12th of April 2011.[5]
[edit] ISA 2004
ISA Server 2004 was released on the 8th September 2004.[6] ISA 2004 introduced multi-networking support, integrated virtual private networking configuration, extensible user and authentication models, Application-Layer Firewall support, support for the H.323 protocol, Active Directory Integration, SecureNAT, Secure Server Publishing, and improved reporting and management features. The rules based configuration was also considerably simplified over ISA 2000 version.
ISA Server 2004 Enterprise Edition included array support, integrated Network Load Balancing (NLB), and Cache Array Routing Protocol (CARP). One of the core capabilities of ISA Server 2004 was its ability to securely publish Web servers. For example, some organizations use ISA Server 2004 to publish their Exchange services (e.g., OWA, RPC over HTTP, ActiveSync, OMA). Using the Forms-based Authentication (FBA) authentication type, ISA Server can be used to pre-authenticate web clients so that traffic from unauthenticated clients to published clients is not allowed.
Microsoft Internet Security and Acceleration Server 2004 is available in two editions, Standard and Enterprise. Enterprise Edition contains features enabling policies to be configured on an array level, rather than on individual ISA Servers, and load-balancing across multiple ISA Servers. Each edition of ISA Server is licensed per processor (the version included in Windows Small Business Server 2000/3 Premium includes licensing for 2 processors), and requires Windows Server 2003 Standard (32 bit) or Enterprise (32 bit) Edition server on which to run. Appliance hardware containing Windows 2003 Appliance Edition and ISA Server Standard Edition is available from a variety of Microsoft Partners.[7]
[edit] ISA 2006
ISA Server 2006 was released on 17 October 2006.[8] It was an updated version of ISA 2004, and retained most features.
[edit] ISA Appliance Edition
Microsoft also offer what they call ISA 2006 appliance edition, software designed to be pre-installed onto a OEM server, and sold by the hardware manufacturer as a stand alone firewall type device.[9]
[edit] Microsoft Forefront Threat Management Gateway (TMG)
The next version of ISA server is soon to be released as Microsoft Forefront Threat Management Gateway. The beta version is available.[10] along with the RTM of Windows Essential Business Server with which it is included.
[edit] Timeline
| Date | Version |
|---|---|
| 2008 | Forefront Threat Management Gateway |
| 2006 | ISA Server 2006 (released on 9/6/2006) |
| 2004 | ISA Server 2004 (internal version is 5.0) |
| 2000 | ISA Server 2000 (internal version is 3.0) |
| 1997 | Proxy Server 2.0 |
| 1996 | Proxy Server 1.0 |
[edit] See also
[edit] References
- ^ "Press Release: Microsoft Ships Proxy Server 1.0". Microsoft. Oct 29, 1996. http://www.microsoft.com/presspass/press/1996/oct96/proxypr.mspx. Retrieved 2009-07-31.
- ^ a b "Microsoft Support Lifecycle". http://support.microsoft.com/lifecycle/?p1=2695. Retrieved 2007-06-05.
- ^ "Microsoft ISA Server". http://www.windowsecurity.com/articles/Microsoft_ISA_Server_Part_I__introduction_installation_configuration_Web_caching_and_Internet_access.html. Retrieved 2007-06-05.
- ^ a b "Microsoft Support Lifecycle: Proxy Server 2.0 Standard Edition". http://support.microsoft.com/lifecycle/?p1=2696. Retrieved 2007-06-05.
- ^ a b "Microsoft Support Lifecycle ISA 2000". http://support.microsoft.com/lifecycle/?p1=2107. Retrieved 2009-03-09.
- ^ "Microsoft Support Lifecycle ISA 2004". http://support.microsoft.com/lifecycle/?p1=2108. Retrieved 2009-03-09.
- ^ "Deploy ISA Server and IAG in Minutes with Hardware Solutions". http://www.microsoft.com/isaserver/hardware/default.mspx. Retrieved 2007-06-05.
- ^ "Microsoft Support Lifecycle ISA 2006". http://support.microsoft.com/lifecycle/?p1=11928. Retrieved 2009-03-09.
- ^ "Internet Security and Acceleration Server: hardware partners". http://www.microsoft.com/Forefront/edgesecurity/isaserver/en/us/hardware-partners.aspx. Retrieved 2009-01-21.
- ^ "Microsoft Releases Beta of Integrated Security System Forefront “Stirling”". 2008-04-08. http://www.microsoft.com/presspass/press/2008/apr08/04-08ForefrontBetaPR.mspx. Retrieved 2008-04-16.
[edit] External links
- Microsoft Internet Security and Acceleration Server
- ISA Server TechCenter
- Evaluate ISA Server 2006 Enterprise Edition
- Forefront TMG Beta 3 Download
- Forefront TMG (ISA Server) Product Team Blog
- Forefront TMG information and articles in french on a Microsoftee's blog
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