1. Click Security Services > Web URL Filtering > Advanced Settings.
2. Enter the following information:
• Filter Traffic on HTTP port: Enter the port number that is used for filtering HTTP traffic. Web URL Filtering only monitors and controls the website visits through this HTTP port. The default value is 80.
• Filter Traffic on HTTPS port: Enter the port number that is used for filtering HTTPS traffic. Web URL Filtering only monitors and controls the website visits through this HTTPS port. The default value is 443.
• Blocked Web Components: You can block or permit the web components like Proxy, Java, ActiveX, and Cookies. By default, all of them are permitted.
– Proxy: Check this box to block proxy servers, which can be used to circumvent certain firewall rules and thus present a potential security gap.
– Java: Check this box to block Java applets that can be downloaded from pages that contain them.
– ActiveX: Check this box to prevent ActiveX applets from being downloaded through Internet Explorer.
– Cookies: Check this box to block cookies, which typically contain sessions.
3. Choose one of the following actions when Web URL Filtering is unavailable:
• Block Web Traffic when web URL filter services are not available: All web traffic is blocked until Web URL Filtering is available.
• Allow Web Traffic even when web URL filter services are not available: All web traffic is allowed until Web URL Filtering is available.
4. Choose one of the following actions when a web page is blocked:
• Display Blocked URL Message when the requested page is blocked: Displays the default block page when a web page is blocked. If you choose this option, the message that you specify in the Blocked URL Message field will show on the default block page.
• Redirect URL: Redirects to a specified web page when a web page is blocked. If you choose this option, enter a desired URL to be redirected. Make sure that the specified URL is allowed by the Website Access Control List.