Cisco Cisco Web Security Appliance S170 사용자 가이드

다운로드
페이지 582
C U S T O M   U R L   C A T E G O R I E S
C H A P T E R   1 3 :   U R L   F I L T E R S
 281
C U S T O M   U R L   C A T E G O R I E S
The Web Security appliance ships with many predefined URL categories by default, such as 
Web-based Email and more. However, you can also create user defined custom URL 
categories that specify specific host names and IP addresses. You might want to create custom 
URL categories for internal sites or a group of external sites you know you can trust. 
Create, edit, and delete custom URL categories on the Web Security Manager > Custom URL 
Categories page.
Figure 13-4 Custom URL Categories Page
Note — The Web Security appliance uses the first four characters of custom URL category 
names preceded by “c_” in the access logs. Consider the custom URL category name if you 
use Sawmill for IronPort to parse the access logs. If the first four characters of the custom URL 
category include a space, Sawmill for IronPort cannot properly parse the access log entry. 
Instead, only use supported characters in the first four characters if you will use Sawmill for 
IronPort to parse the access logs. If you want to include the full name of a custom URL 
category in the access logs, add the %XF format specifier to the access logs. For more 
information on how to do this, see “Custom Formatting in Access Logs and W3C Logs” on 
page 450.
It is possible to create multiple custom URL categories and include the same URL in each 
category. The order of the custom URL categories matters. Categories listed higher in the list 
take priority over categories listed lower. When you include these custom URL categories in 
the same Access, Decryption, or IronPort Data Security Policy group and define different 
actions to each category, the action of the higher included custom URL category takes effect. 
To create or edit a custom URL category:
1. Navigate to the Web Security Manager > Custom URL Categories page.
2. To create a custom URL category, click Add Custom Category. To edit an existing custom 
URL category, click the name of the URL category.
Add a custom URL category.
Edit custom URL category.
Delete custom URL category.