12.4 Web content filtering by word occurrence
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So called forbidden words are used to filter out web pages containing undesirable words. URL
rules (see chapter 12.2) define how pages including forbidden content will be handled.
Warning
Definition of forbidden words and threshold value is ineffective unless corresponding URL
rules are set!
Definition of rules filtering by word occurrence
First, suppose that some forbidden words have been already defined and a threshold value
has been set (for details, see below).
On the URL Rules tab under Configuration →Content Filtering →HTTP Policy, create a rule (or
a set of rules) to allow access to the group of web pages which will be filtered by forbidden
words. Go to the Content Rules tab under HTTP Rule to enable the web content filter.
Take a rule that will filter all web sites by occurrence of forbidden words as an example.
•On the General tab, allow all users to access any web site.
Figure12.9 Arule filtering web pages by word occurrence (allow access)