Amer Networks E5Web GUI - Manual (Page 449)

Figure 6.8. Dynamic Web Content Filtering Flow
If the requested web page URL is not present in the databases, then the webpage content at the
URL will automatically be downloaded to Clavister's central data warehouse and automatically
analyzed using a combination of software techniques. Once categorized, the URL is distributed
to the global databases and cOS Core receives the category for the URL. Dynamic WCF therefore
requires a minimum of administration effort.
Note: New URL submissions are done anonymously
New, uncategorized URLs sent to the Clavister network are treated as anonymous
submissions and no record of the source of new submissions is kept.
Categorizing Pages and Not Sites
cOS Core dynamic content filtering categorizes web pages and not sites. In other words, a web
site may contain particular pages that should be blocked without blocking the entire site. cOS
Core provides blocking down to the page level so that users may still access parts of websites
that are not blocked by the filtering policy.
Dynamic WCF and Whitelisting
If a particular URL is whitelisted then it will bypass the WCF subsystem. No classification will be
done on the URL and it will always be allowed. This applies if the URL has an exact match with an
entry on the whitelist or if it matches an entry that makes use of wildcarding.
Chapter 6: Security Mechanisms
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