Restricting users to a defined list of URLs
Limited access filters provide a very precise method of granting Internet access. Each limited access filter is a list of individual URLs, IP addresses, or regular expressions. Like category filters, limited access filters are added to policies and enforced during a specified time period. When a limited access filter is active in a policy, users assigned that policy can visit only websites in the list. All other sites are blocked.
For example, if the First Grade policy enforces a limited access filter that includes only certain educational and reference sites, students governed by the First Grade policy can visit only those sites, and no others.
When a limited access filter is active, a block page is returned for any requested URL not included in that filter.
Web protection software can support up to 2,500 limited access filters containing 25,000 URLs in total.