The Category Definition Updates section displays information about the category definitions that are currently loaded in the system and some entries to enable you to update the category definitions, as follows.
|Current revision||The current revision number of the category definitions list.|
|Last Update||The date and time when the category definitions list was last updated from the central web categories database.|
|Check for updates now||To connect to the central database and check for updates to the category definitions list, click Start.|
|Prefetch Updates Automatically|| To connect to the central database and download updates to the category definitions list periodically, set this option to ON by clicking Enable. By default, this option is enabled.
To disable automatic updates, set this option to OFF by clicking Disable. If you set this option to ON, the Frequency drop-down list is displayed, as described below.
|Frequency|| Use this drop-down list to select the frequency at which updates to the category definitions list are downloaded from the central database. The options are Every hour, Every day, or Every week. The default is Every day.
The updates are downloaded at 1 minute past the hour for hourly updates, at 03:01AM for daily updates, and at 03:01AM every Saturday for weekly updates.
|Use Cloud based lookups|| To use cloud based definition lookups, set this option to ON by clicking Enable. By default this option is disabled.
To disable cloud based lookups, set this option to OFF by clicking Disable.
By default, the WebTitan Cloud appliance will check each requested URL against its local on-disk database of URL definitions. This database is updated daily. You can, however, use cloud based lookups rather than querying the local disk. This will ensure more up-to- date definitions.
Please note, than choosing this option may introduce a very slight latency to each request.
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