Administrator's Guide - Kerio Software Archive

HTTP and FTP filtering
Individual groups and words included in them are displayed in form of trees. To enable
filtering of particular words use checkboxes located next to them. Unchecked words will be
ignored. Due to this function it is not necessary to remove rules and define them again later.
Note: The following word groups are predefined in the default Kerio Control installation:
• Pornography — words that typically appear on pages with erotic themes,
• Warez / Cracks — words that typically appear on pages offering downloads of illegal
software, license key generators etc.
All key words in predefined groups are disabled by default. The firewall administrator can
enable filtering of the particular words and modify the weight for each word.
Threshold value for Web page filtering
The value specified in Deny pages with weight over represents so called threshold weight
value for each page (i.e. total weight of all forbidden words found at the page). If the
total weight of the tested page exceeds this limit, access to the page will be denied (each
word is counted only once, regardless of the count of individual words).
Definition of forbidden words
Use the Add button to add a new word into a group or to create a new group.
Figure 13.12
Definition of a forbidden word or/and a word group
Group
Selection of a group to which the word will be included. You can also add a new name to
create a new group.
Keyword
Forbidden word that is to be scanned for. This word can be in any language and it should
follow the exact form in which it is used on websites (including diacritics and other special
symbols and characters). If the word has various forms (declension, conjugation, etc.), it
is necessary to define separate words for each word in the group. It is also possible to set
various weight of words.
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