Kerio Control Web Filter Is Not Activated Categorization Is Disabled Work

Detailed Analysis: Kerio Control Web Filter Not Activated & Categorization Disabled

What Does “Categorization Is Disabled” Actually Mean?

To understand the error, you must first know how Kerio Control’s web filter works.

Kerio Control does not rely solely on static blocklists. Instead, it uses real-time cloud-based URL categorization. When a user requests a website, the Kerio appliance queries a remote categorization server (provided by Kerio’s parent company, GFI Software, or a third-party partner like McAfee). The server returns a category ID (e.g., 92 for “Gambling”). The appliance then applies your content rules. Detailed Analysis: Kerio Control Web Filter Not Activated

If categorization is disabled, the appliance cannot query the cloud. Consequently, no website receives a category, and all content rules dependent on categories fail silently. Via command line (SSH): /etc/init

Thus, the message is not a warning—it is a functional shutdown of category-based filtering. In Content Filtering → Web Filter

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5. Restart Web Filter Service

• Via command line (SSH):

  /etc/init.d/keriowebfilter restart
  

• Or reboot the entire Kerio Control appliance.

4. Force Categorization Update

• In Content Filtering → Web Filter, click “Update now” under URL Database.
• Kerio must be able to reach its update servers (check firewall rules/DNS).