Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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Cisco AsyncOS 9.0 for Email User Guide
 
Chapter 15      URL Filtering
  About URL Categories
URLs in a Filtered Category Are Not Handled Correctly 
Problem
The defined action in a content or message filter based on URL category is not applied. 
Solution
Use the Trace feature (described in the Troubleshooting chapter) to follow the message processing 
path. 
This can occur if the Email Security appliance is unable to connect to the Cisco Web Security 
Services. See 
If there are no connection issues, the URLs may not yet be categorized, or may be miscategorized. 
See 
. You can use this site to 
determine the category of a URL. 
End User Reaches Malicious Site via Rewritten URL 
Problem
A malicious URL was redirected to the Cisco Web Security Proxy, but the end user was able to 
access the site anyway. 
Solution
This can occur if: 
The site was not yet identified as a malicious site.  
The connection to the Cisco Web Security Proxy timed out, which should be a rare occurrence. 
Ensure that network issues are not interfering with the connection. 
Manually Configuring a Certificate for Communication with Cisco Web 
Security Services 
Use this procedure if the appliance is unable to automatically obtain a certificate for communication with 
Cisco Web Security Services. 
Procedure 
Step 1
Obtain the required certificate. 
Step 2
Upload the certificate using Network > Certificates, or use the 
certconfig
 command in the 
command-line interface. 
Step 3
In the command-line interface, enter the 
websecurityconfig
 command. 
Step 4
Follow the prompts to set the client certificate for Cisco Web Security Services Authentication. 
Step 5
After completing the certificate installation process, enter the 
webcacheflush
 command.
About URL Categories
Related Topics