|Microsoft Internet Security and Acceleration Server 2000|
ISA Server supports three types of clients:
The following table compares the ISA Server clients.
|Feature||SecureNAT client||Firewall client||Web proxy client|
|Installation required||Some network configuration changes are required||Yes||No, requires Web browser configuration|
|Operating system support||Any operating system that supports Transmission Control Protocol/Internet Protocol (TCP/IP)||Only Windows platforms||All platforms, but by way of Web application|
|Protocol support||Requires application filters for multi-connection protocols||All Winsock applications||Hypertext Transfer Protocol (HTTP), Secure HTTP (HTTPS), File Transfer Protocol (FTP), and Gopher|
|User-level authentication||Some network configuration changes are required||Yes||Yes|
|Server applications||No configuration or installation required||Requires configuration file||N/A|
Firewall client computers and SecureNAT client computers may also be Web proxy clients. If the Web application on the computer is configured explicitly to use the ISA Server, then all Web requests (HTTP, FTP, HTTPS, and Gopher) are sent directly to the Web proxy service. All other requests are handled first by the Firewall service.
This section contains the following topics: