TRITON - Web Security Help, Version 7.7 - Websense

Refine Filtering PoliciesEditing a limited access filterTRITON - Web Security Help | Web Security Solutions | Version 7.7.xRelated topics: Restricting users to a defined list of URLs, page 255 Limited access filters and filtering precedence, page 256 Creating a limited access filter, page 257 Editing a policy, page 95A limited access filter is a list of URLs, IP addresses, and regular expressions, used toidentify specific Web sites that users can access. When the filter is applied to clients,those clients cannot visit any site that is not in the list.ImportantIf a URL permitted by a limited access filter becomesinfected with malicious code, as long as Securitycategories are blocked, user requests for that site areblocked.For instructions to change this behavior, see PrioritizingSecurity Risk categorization, page 270.Use the Policy Management > Filters > Edit Limited Access Filter page to makechanges to an existing limited access filter. You can change the filter name anddescription, see a list of polices that enforce the filter, and manage which URLs, IPaddresses, and regular expressions are included in the filter.When you edit a limited access filter, the changes affect every policy that enforces thefilter.1. Verify the filter name and description. To change the filter name, click Rename,and then enter the new name. The name is updated in all policies that enforce theselected limited access filter.2. Use the Policies using this filter field to see how many policies currently enforcethis filter. If 1 or more policies enforce the filter, click View policies to list them.3. Under Add or Remove Sites, enter the URLs and IP addresses that you want toadd to the limited access filter. IP addresses may use IPv4 or IPv6 format.Enter one URL or IP address per line.• For HTTP sites, it is not necessary to include the http:// prefix.• When an HTTP site is filtered according to its Master Database category,Websense software matches the URL with its equivalent IP address. This isnot the case for limited access filters. To permit a Web site’s URL and IPaddress, add both to the filter.258 Websense Web Security Solutions