Setting up ISA Firewall 2004

Run the ISA Server Management. Click "Firewall Policy" – you will see the list of the rules. We need to open access through the following ports: 20, 21 – FTP; 25 – SMTP; 80 – HTTP; 443 – HTTPS.

For instance, here's how to allow access through the HTTP protocol. Open thw "Tasks" tab and press "Create New Access Rule". In the window that appears, enter the "Access rule name" - "HTTP", press "Next". Choose to allow programs to work through this protocol and press "Next". In the window that appears, in the field "This rule applies to:" choose "Selected protocols". Press "Add", in the "Add protocols" window open the folder "Common Protocols", choose "HTTP" and press "Add", then "Close". Press "Next".

In the "Access Rule Sources" window press "Add" and in the window "Add Network Entities" choose the necessary network entities. Press "Add", then "Close". Press "Next". In the new window "Access Rule Destinations" choose and add the necessary network entities.

In the next window choose the users for this rule to apply to. Then, press "Finish". The rule is created. In order to save the changes and to update the configuration, press "Apply". In this way, create the rules for all other protocols.