Cisco Cisco Email Security Appliance C190 Guía Del Usuario
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AsyncOS 9.1.2 for Cisco Email Security Appliances 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.
path.
•
This can occur if the Email Security appliance is unable to connect to the Cisco Web Security
Services. See
Services. See
.
•
If there are no connection issues, the URLs may not yet be categorized, or may be miscategorized.
See
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.
Ensure that network issues are not interfering with the connection.
Manually Configuring a Certificate for Communication with Cisco Web
Security Services
Security Services
Use this procedure if the appliance is unable to automatically obtain a certificate for communication with
Cisco Web Security Services.
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
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