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Chapter 10 HTTP and FTP filtering
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Warning: Definition of forbidden words and treshold value is ineffective unless corre-
sponding URL rules are set!
Definition of rules filtering by word occurrence
First, suppose that some forbidden words have been already defined and a treshold
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.
Example: A rule that will filter all web sites by occurrence of forbidden words.
On the General tab, allow all users to access any web site.
Figure 10.10 A rule filtering web pages by word occurrence (allow access)