Chapter 6: Installing and Configuring the ISA Firewall Software
Pre-installation Tasks and Considerations
There are several key pre-installation and tasks and considerations you need to address before installing the ISA firewall software. These include:
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System Requirements
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Configuring the Routing Table
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DNS Server Placement
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Configuring the ISA Firewall s Network Interfaces
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Unattended Installation
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Installation via a Terminal Services Administration Mode Session
System Requirements
The following are requirements for installing the ISA firewall software:
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Intel or AMD system with a 550 megahertz (MHz) or higher processor
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Windows 2000 or Windows Server 2003 operating system
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A minimum of 256 megabytes (MB) of memory; a practical minimum of 512 MB of memory for non-Web caching systems, and 1000 MB for Web-caching ISA firewalls
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At least one network adapter; two or more network adapters are required to obtain stateful filtering and stateful application-layer inspection firewall functionality
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An additional network adapter for each network connected to the ISA Server computer
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One local hard-disk partition that is formatted with the NTFS file system, and at least 150 MB of available hard disk space (this is exclusive of hard-disk space you want to use for caching)
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Additional disk space, which ideally is on a separate spindle, if you plan on using the ISA firewall s Web-caching feature
Special installation issues if you plan on installing the ISA firewall software on Windows 2000 include:
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Windows 2000 Service Pack 4 (SP4), or later, must be installed.
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Internet Explorer 6, or later, must be installed.
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If you are using the Windows 2000 SP4 slipstream, you must also install the hotfix specified in article 821887, Events for Authorization Roles Are...