3Com 3CR16110-95-US User Guide - Page 72
Enable Filtering on Custom List, Disable all Web traffic except for Trusted Domains
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72 CHAPTER 5: SETTING UP WEB FILTERING Enable Filtering on Custom List Use this to enable or disable the custom filtering without re-entering all site names. You do not have to re-enter names when the Web Site Filter is updated each week, as the custom list does not expire. Disable all Web traffic except for Trusted Domains Click the Disable Web traffic except for Trusted Domains check box to allow Firewall Web access only to sites on the Trusted Domains list. With careful screening, this can block almost all objectionable material. Don't block Java/ActiveX/Cookies to Trusted Domains Click this check box to make the Firewall allow Java, ActiveX and cookies from sites on the Trusted Domains list to the LAN. In certain cases, it may be desirable to allow Java, ActiveX or cookies from sites that are known and trusted. Changing the Message to display when a site is blocked When a user attempts to access a site that is blocked by the Web Site Filter, a message is displayed on their screen. The default message is: Web Site Blocked by 3Com SuperStack 3 Firewall. You can type any message, including embedded HTML, up to 255 characters long in this box. For example, if you type the following: Access to this site was denied because it appears to violate this organization's Acceptable Use Policy. Please contact the Network Administrator if you feel this was in error. The user will see the following displayed when they attempt to visit a blocked site: Access to this site was denied because it appears to violate this organization's Acceptable Use Policy. Please contact the Network Administrator if you feel this was in error. Where the underlined sections are links to your company's acceptable use policy and to the network administrator's email address.