Microsoft Internet Security and Acceleration Server 2000

Firewall and Security Overview

ISA Server can be deployed as a dedicated firewall that acts as the secure gateway to the Internet for internal clients. ISA Server protects all communication between internal computers and the Internet. In a simple firewall scenario, the ISA Server computer has two network interface cards, one connected to the local network and one connected to the Internet.

You can use ISA Server to configure the firewall, configuring policies and creating rules to implement your business guidelines. By setting the security access policies, you prevent unauthorized access and malicious content from entering the network. You can also restrict what traffic is allowed for each user and group, application, destination, content type, and schedule.

ISA Server includes the following firewall and security features: