ISA Server 2006 Standard (English) - Microsoft Imagine

ISA Server 2006 Standard (English) - Microsoft Imagine


Microsoft Corporation



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Microsoft Internet Security and Acceleration (ISA) Server 2006 helps you protect your IT environment by providing secure access to applications, support for secure branch office connectivity, and advanced firewall protection. The new features provided in ISA Server 2006 include:

  • New Web filters for HTTP compression and packet prioritization support increase performance for priority traffic. Compressed HTTP traffic is inspected by ISA Server.
  • A single sign-on Web experience, including forms-based authentication together with RSA SecurID as well as NTLM, RADIUS, and LDAP authentication.
  • Expanded possibilities for authentication delegation to published servers, such as Web servers or SharePoint Portal servers.
  • Enhanced link translation that enable you to publish multiple intranet sites to the Internet
  • Secure application access: You can publish applications such as Exchange Outlook Web Access and Windows Sharepoint Services with automated tools, while maintaining granular access policy, authentication, and content inspection.
  • Caching of content received using the Background Intelligent Transfer Service (BITS) to reduce the load on WAN links for updating desktop computers. A pre-configured Microsoft Update cache rule provides caching for Microsoft software updates when you enable the cache.
  • Ability to check the validity and expiration dates of SSL certificates used for secure communication.
  • Publishing of server farms.
  • New connection limits for improved protection against flood attacks.

These new features support solutions for a wide range of network scenarios, including:

  • The Secure Application Publishing Scenario: Using link translation, single-sign on, advanced authentication options, and the ability to publish server farms, you can easily and securely publish Web sites, Outlook Web Access, and SharePoint, and link from one site to another without requiring your users to re-authenticate
  • The Branch Office Gateway Scenario: Remote branches that have limited connectivity or IT staff can be easily configured to connect to your headquarters over VPN, and can take advantage of HTTP compression and BITS caching to make communication more efficient.


ISA Server 2006 Standard

You will need the following minimum system configuration to use ISA Server 2006 Standard or Enterprise Edition.

Minimum Requirements


PC with a 733 MHz Pentium III or higher processor.

Operating System

Microsoft Windows Server 2003 32-bit operating system with Service Pack 1 (SP1) or Microsoft Windows Server 2003 R2 32-bit.


512 megabytes (MB) of RAM or more is recommended.

Hard Disk

NTFS-formatted local partition with 150 MB of available hard-disk space; additional space will be required for Web cache content.

Other Devices

  • Network adapter that is compatible with the computer's operating system for communication with the internal network; one additional network adapter, modem, or ISDN adapter for each additional network connected to the ISA Server computer
  • One additional network adapter is required for intra-array communications for ISA Server 2006 Enterprise Edition integrated NLB
  • CD-ROM or DVD-ROM drive
  • VGA or higher-resolution monitor
  • Keyboard and Microsoft Mouse or compatible pointing device


  • We recommend that all customers deploy current security implementation best practices, including applicable hotfixes, as outlined at the Microsoft TechNet Security Center.
  • ISA Server 2006 Standard Edition supports up to four CPUs on one server.

Actual system requirements will vary based on your deployment configuration, expected load, and the features you choose to install.

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