Citrix Systems 9.2 Benutzerhandbuch

•

Bindings. To ensure that the NetScaler can invoke a policy when it is 
needed, you associate the policy, or bind it, to one or more bind points. 

You can bind a policy globally or to a virtual server. For more information, 
see 

.

•

An associated action. An action is a separate entity from a policy. Policy 
evaluation ultimately results in the NetScaler performing an action. 

For example, a policy in the Integrated Cache can identify HTTP requests 
for .gif or .jpeg files. An action that you associate with this policy 
determines that the responses to these types of requests are served from the 
cache. 

For some features, you configure actions as part of a more complex set of 
instructions known as a profile. For more information, see 

The NetScaler supports a variety of features that rely on policies for operation. 
The following table summarizes how the NetScaler features use policies:
NetScaler Feature, Policy Type, and Policy Usage

System 

Classic

For the Authentication function, policies contain 
authentication schemes for different 
authentication methods. 

For example, you can configure LDAP and 
certificate-based authentication schemes.

You also configure policies in the Auditing 
function. 

DNS

Advanced

To determine how to perform DNS resolution for 
requests.

SSL

Classic

To determine when to apply an encryption 
function and add certificate information to clear 
text.

To provide end-to-end security, after a message is 
decrypted, the SSL feature re-encrypts clear text 
and uses SSL to communicate with Web servers. 

Compression

Classic and 
Advanced

To determine what type of traffic is compressed.

Integrated 
Caching

Advanced

To determine whether HTTP responses are 
cacheable. 

Responder

Advanced 

To configure the behavior of the Responder 
function.