Cisco Cisco Web Security Appliance S160 Guia Do Utilizador
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Cisco IronPort AsyncOS 7.5 for Web User Guide
Chapter 17 URL Filters
Filtering Transactions Using URL Categories
Choose which custom URL categories the URL filtering engine should compare the client request
against. The URL filtering engine compares client requests against included custom URL categories, and
ignores excluded custom URL categories. The URL filtering engine compares the URL in a client
request to included custom URL categories before predefined URL categories.
against. The URL filtering engine compares client requests against included custom URL categories, and
ignores excluded custom URL categories. The URL filtering engine compares the URL in a client
request to included custom URL categories before predefined URL categories.
The custom URL categories included in the policy appear in the Custom URL Category Filtering section.
Step 4
In the Custom URL Category Filtering section, choose an action for each included custom URL category.
describes each action.
Step 5
In the Predefined URL Category Filtering section, choose one of the following actions for each category:
Table 17-3
URL Category Filtering for Access Policies
Action
Description
Use Global
Setting
Setting
Uses the action for this category in the Global Policy Group. This is the default action
for user defined policy groups.
for user defined policy groups.
Applies to user defined policy groups only.
Note: When a custom URL category is excluded in the global Access Policy, then the
default action for included custom URL categories in user defined Access Policies is
Monitor instead of Use Global Settings. You cannot choose Use Global Settings when
a custom URL category is excluded in the global Access Policy.
default action for included custom URL categories in user defined Access Policies is
Monitor instead of Use Global Settings. You cannot choose Use Global Settings when
a custom URL category is excluded in the global Access Policy.
Redirect
Redirects traffic originally destined for a URL in this category to a location you
specify. When you choose this action, the Redirect To field appears. Enter a URL to
which to redirect all traffic.
specify. When you choose this action, the Redirect To field appears. Enter a URL to
which to redirect all traffic.
For more information about redirecting traffic, see
Allow
Always allows client requests for web sites in this category.
Allowed requests bypass all further filtering and malware scanning.
Only use this setting for trusted web sites. You might want to use this setting for
internal sites.
internal sites.
Monitor
The Web Proxy neither allows nor blocks the request. Instead, it continues to evaluate
the client request against other policy group control settings, such as web reputation
filtering.
the client request against other policy group control settings, such as web reputation
filtering.
Warn
The Web Proxy initially blocks the request and displays a warning page, but allows
the user to continue by clicking a hypertext link in the warning page.
the user to continue by clicking a hypertext link in the warning page.
For more information, see
Block
The Web Proxy denies transactions that match this setting.
Time-Based
The Web Proxy blocks or monitors the request during the time ranges you specify.
For more information about creating time based URL filtering actions, see