What is TMG ?
Microsoft Forefront Threat Management Gateway (Forefront TMG), formerly known as Microsoft Internet Security and Acceleration Server (ISA Server), is a network security and protection solution for Microsoft Windows, described by Microsoft as “enables businesses by allowing employees to safely and productively use the Internet for business without worrying about malware and other threats“.
Microsoft Forefront TMG offers a set of features which include:
- Routing and remote access features: Microsoft Forefront TMG can act as a router, an Internet gateway, a virtual private network (VPN) server, a network address translation (NAT) server and a proxy server.
- Security features: Microsoft Forefront TMG is a firewall which can inspect network traffic (including web contents, secure web contents and emails) and filter out malwares, attempts to exploit security vulnerabilities and content that does not match a predefined security policy. In technical sense, Microsoft Forefront TMG offers application layer protection, stateful filtering, content filtering and anti-malware protection.
- Network performance features: Microsoft Forefront TMG can also improve network performance: It can compress web traffic to improve communication speed. It also offers web caching: It can cache frequently-accessed web contents so that users can access them faster from the local network cache. Microsoft Forefront TMG 2010 can also cache data received through Background Intelligent Transfer Service, such as updates of software published on Microsoft Update website.
Microsoft Forefront TMG 2010
Microsoft Forefront Threat Management Gateway 2010 (Forefront TMG 2010) was released on 17 November 2009. It is built on the foundation of ISA Server 2006 and provides enhanced web protection, native 64-bit support, support for Windows Server 2008 and Windows Server 2008 R2, malware protection and BITS caching. Service Pack 1 for this product was released on 23 June 2010. It includes several new features to support Windows Server 2008 R2 and Microsoft SharePoint 2010 lines of products.