TrustPort WebFilter enables the monitoring of web activities, and if necessary
can restrict access to certain website categories. Based on analysis of the web
address and its content, the page is labeled either as a safe site, or assigned
to a certain category of undesirable sites.

The network administrator also has graphic statistics of all web filtering to
their disposal.

It works with a daily updated database of categorized web addresses.
In addition, it also uses heuristic analysis which compares the website with
dictionary expressions that are specific to each category. Some examples include:
drugs, gambling, violence and aggression, pornography, illegal software Filtering
levels User filter Contains lists of expressly prohibited or permitted sites
which are maintained by the network administrator.

If the navigated site is not on one of the lists, the process moves to the next
filter. Common filter Is based on a database of web addresses which are supplied
and updated by the manufacturer. Visit to a website that falls within the illegal
category will be impossible, or the site will be entered into the record.
Heuristic filter Conducts an analysis of the web address and its content which
was released by the earlier filters.

Subsequently, the page is included into one of the categories or it sent to the
user for viewing. From each conducted analysis, the program also better learns to
identify unwanted categories. Timeline filter Sets the daily and weekly schedule
of activation or deactivation of all previous filters.

http://www.trustport.com

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