Cisco Cisco Email Security Appliance C160 Mode D'Emploi

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16-6
User Guide for AsyncOS 9.8 for Cisco Email Security Appliances
 
Chapter 16      Protecting Against Malicious or Undesirable URLs
  Setting Up URL Filtering
Procedure 
Step 1
Select Mail Policies > URL Lists
Step 2
Select Add URL List or click a list to edit. 
Be sure all URLs that you want to globally whitelist are in a single list. You can select only one global 
whitelist for URL filtering. 
Step 3
Create and submit the URL list. 
To view a list of supported URL formats, enter a semicolon (;) into the URLs box and click Submit
Then click the more... link that appears. 
Each URL, domain, or IP address can be on a separate line, or separate each with a comma. 
Step 4
Commit your changes. 
What To Do Next 
To designate a URL list as the global whitelist, see 
To designate a URL list as the whitelist for a specific condition (rule) or action in a content or 
message filter, se
 and 
For message filters, see also 
 and 
Related Topics
Importing a URL List 
You can import a URL list to use as a whitelist for URL filtering. 
Procedure
Step 1
Create the text file to import: 
The first line must be the name of the URL list. 
Each URL must be on a separate line. 
Step 2
Upload the file to the 
/configuration
 directory on the appliance. 
Step 3
Use the 
urllistconfig
 > 
new
 command in the command-line interface. 
Customizing the Notification That End Users See If a Site Is Malicious 
If an end user clicks a malicious URL identified by Outbreak Filtering or a Policy (using Content or 
Message Filters), the Cisco Web Security proxy displays a notification in the end user’s web browser. 
This notification states that the site is malicious and access to it has been blocked. 
When an end user clicks on a URL rewritten using Outbreak Filtering, the notification page is displayed 
for 10 seconds and then is redirected to the Cisco Web Security proxy for click-time evaluation.