ISA Server modes
As part of the setup process, you can select the Microsoft Internet Security and Acceleration (ISA) mode: firewall, cache, or integrated.
In firewall mode, you can secure network communication by configuring rules that control communication between your corporate network and the Internet. You can also publish internal servers, thereby sharing data on your internal servers with Internet users.
In cache mode, you can improve network performance and save bandwidth by storing commonly-accessed objects closer to the user. You can then route requests from Internet users to the appropriate Web server.
In integrated mode, all the features are available.
Depending on which mode you select, different features are available. The table below lists which features are available for the firewall and cache modes.
| Feature | Firewall | Cache |
Enterprise policy | Yes | Yes |
Access policy | Yes | Yes, but only for Hypertext Transfer Protocol (HTTP) |
Web publishing | Yes | Yes |
Server publishing | Yes | No |
Packet filtering | Yes | No |
Cache configuration | No | Yes |
Application filters | Yes | No |
Web filters | Yes | Yes |
Real-time monitoring | Yes | Yes |
Alerts | Yes | Yes |
Reports | Yes | Yes |
Virtual private networking | Yes | No |
SecureNAT client support | Yes | No |
Firewall client support | Yes | No |
Web Proxy client support | Yes | Yes |
