ISA Server
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Microsoft Forefront Threat Management Gateway 2010 management console
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| Developer(s) | Microsoft |
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| Initial release | 1 January 1997 |
| Stable release |
2010 / 10 October 2011
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| Development status | Discontinued on 12 September 2012 |
| Operating system | Windows Server 2008 |
| Platform | x86-64 |
| Available in | English, Chinese (Simplified), Chinese (Traditional), French, German, Italian, Japanese, Korean, Portuguese (Brazil), Russian and Spanish |
| Type | Router, firewall, antivirus program, VPN server, web cache |
| License | Trialware |
| Website | www |
Microsoft Forefront Threat Management Gateway (Forefront TMG), formerly known as Microsoft Internet Security and Acceleration Server (ISA Server), is a network router, firewall, antivirus program, VPN server and web cache from Microsoft Corporation. It runs on Windows Server and works by inspecting all network traffic that passes through it.
Microsoft Forefront TMG offers a set of features which include:
The Microsoft Forefront Threat Management Gateway product line originated with Microsoft Proxy Server. Developed under the code-name "Catapult", Microsoft Proxy Server v1.0 was first launched in January 1997, and was designed to run on Windows NT 4.0. Microsoft 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 Windows NT4, Microsoft Proxy Server v1.0 only had basic functionality, and came in only one edition. Extended support for Microsoft Proxy Server v1.0 ended on 31 March 2002.
Microsoft Proxy Server v2.0 was launched in December 1997, and included better NT Account Integration, improved packet filtering support, and support for a wider range of . Microsoft Proxy Server v2.0 exited the extended support phase and reached end of life on 31 December 2004.
On 18 March 2001, Microsoft launched Microsoft Internet Security and Acceleration Server 2000 (ISA Server 2000). ISA Server 2000 introduced the Standard and Enterprise editions, with Enterprise-grade functionality such as High-Availability Clustering not included in the Standard Edition. ISA Server 2000 required Windows 2000 (any edition), and will also run on Windows Server 2003. In accordance with Microsoft's Support Lifecycle Policy, ISA Server 2000 was the first ISA Server product to use the 10 year support lifecycle with 5 years of Mainstream support and five years of Extended support. ISA Server 2000 reached End of Life on 12 April 2011.
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