Installation requirements
To use Microsoft Internet Security and Accelration (ISA) Server, you need:
- A personal computer with a 300 megahertz (MHz) or higher Pentium II-compatible CPU.
- For the operating system, the computer must run Microsoft Windows® 2000 Server or Windows Server 2003.
- 256 megabytes (MB) of memory.
- One network adapter that is compatible with the computer's operating system, for communication with the Internal network.
- An additional network adapter for each network connected to the ISA Server computer.
- One local hard disk partition that is formatted with the NTFS file system and has at least 150 MB of available hard disk space. This is exclusive of hard disk space you want to use for caching.
For installation instructions, see Run ISA Server setup.
Installing ISA Server on a Computer Running Windows 2000
If you install ISA Server on a Windows Server 2000 operating system, note the following additional requirements:
- Windows 2000 Service Pack 4 or later must be installed.
- Internet Explorer 6 or later must be installed.
- If you are using the Windows 2000 SP4 slipstream, you must also install the hot fix specified in article 821887, "Events for Authorization Roles Are Not Logged in the Security Log When You Configure Auditing for Windows 2000 Authorization Manager Runtime," in the Microsoft Knowledge Base.
ISA Server 2004 can be installed on Windows 2000. Note, however, the following functional differences:
- You cannot configure the L2TP IPSec pre-shared key.
- Quarantine mode for VPN clients is not supported when using RADIUS policy.
- All ISA Server services run using the LocalSystem account.
