Blue Coat Systems Time Clock Proxy SG Manuale Utente

Pagina di 314
ProxySG Content Policy Language Guide
250
define category 
Category definitions are used to extend vendor content categories or to create your own. The
 
category_name
 definition can be used anywhere a content filter category name would normally be 
used, including in 
category=
 tests. 
Definitions can include other definitions to create a hierarchy. For example, sports could include 
football by including 
category=football
 in the definition for sports. A defined category can have at 
most one parent category (multiple inheritance is not allowed).
Multiple definitions using the same 
category_name
 are coalesced together.
When policy tests a request URL to determine if it is in one of the categories specified by a trigger, all 
sub-categories are also checked (see Examples).
Syntax
define category category_name 
urlpaths
end [category_name]
where:
category_name
—If 
category_name
 matches the name of an existing category from the 
configured content filtering service, this is used to extend the coverage of that category; otherwise 
it defines a new user defined category. 
category_name
 can be used anywhere a content filter 
category name would normally be used, including in 
category=
 tests. 
urlpaths
—A list of domain suffix or path prefix expressions, as used in the 
url.domain=
 
condition.You only need to specify a partial URL: 
Hosts and subdomains within the domain you specify are automatically included.
If you specify a path, all paths with that prefix will be included (if you specify no path, the 
entire site is included).
Layer and Transaction Notes
Use  in 
<Proxy>
 and 
<Cache>
 Layers.
Applies to all transactions.
Examples
The following example illustrates some of the variations allowed in a category definition:
define category Grand_Canyon
kaibab.org
www2.nature.nps.gov/ard/parks/grca/
nps.gov/grca/
grandcanyon.org
end
The following definitions define the categories sports and football, and make football a sub-category 
of sports:
define category sports
sports.com