Administrator's Guide - Kerio Software Archive

9.5 HTTP cache
TTL
TTL of objects matching with the particular URL.
The 0 days, 0 hours option means that objects will not be cached.
Cache status and administration
Kerio Control allows monitoring of the HTTP cache status as well as manipulation with objects
in the cache (viewing and removing).
At the bottom of the Cache tab, basic status information is provided such as the current cache
size occupied and efficiency of the cache. The efficiency status stands for number of objects
kept in the cache (it is not necessary to download these objects from the server) in proportion
to the total number of queries (since the startup of the Kerio Control Engine). The efficiency
of the cache depends especially on user behavior and habits (if users visit certain webpages
regularly, if any websites are accessed by multiple users, etc.) and, in a manner, it can be
also affected by the configuration parameters described above. If the efficiency of the cache is
permanently low (less than 5 per cent), it is recommended to change the cache configuration.
Figure 9.18
HTTP cache status information
Use the Manage cache content... button to open a dialog where objects kept in cache can be
viewed, searched and/or removed.
To view objects in cache, specify the searched object in the URL entry. Objects can be specified
either by an absolute URL (without protocol) — e.g. www.kerio.com/image/menu.gif or
as a URL substring with * (substituting any number of any symbols and characters) and
(question mark substitutes a single character or symbol) wildcard symbols.
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