Cisco Cisco Email Security Appliance C170 Guia Do Utilizador
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User Guide for AsyncOS 9.7 for Cisco Email Security Appliances
Chapter 16 Protecting Against Malicious or Undesirable URLs
Troubleshooting URL Filtering
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•
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Viewing Logs
URL filtering information is posted to the following logs:
•
Mail Logs (
mail_logs
). Information related to the result of scanning a URL (action taken of a
message depending on the URL) is posted to this log.
•
URL Filtering Logs (
web_client
). Information related to errors, timeouts, network issues, and so
on while attempting the URL lookup are posted this log.
Most information is at Info or Debug level.
Logs do not include information about what happens when a user clicks a redirected link in a message.
"SDS" in logs refers to URL reputation services.
Alert: SDS: Error Fetching Enrollment Certificate
Problem
You receive an info-level alert about an error fetching the enrollment client certificate.
Solution
This certificate is required to connect to the following cloud-based services: Cisco Web
Security Services (to obtain URL reputation and category) and Cisco Aggregator Server (to obtain web
interaction tracking data). Try the following:
interaction tracking data). Try the following:
1.
Check for networking issues such as incorrect proxy settings or firewall issues.
2.
Verify that your URL Filtering feature key is valid and active.
3.
If the problem persists, contact Cisco TAC.
Alert: SDS: Certificate Is Invalid
Problem
You receive a critical alert about an invalid SDS certificate.
Solution
This certificate is required to connect to Cisco Web Security Services in the cloud in order to
obtain URL reputation and category.
To obtain and manually install a certificate, see
.
Unable to Connect to Cisco Web Security Services
Problem
The Security Services > URL Filtering page persistently indicates an issue connecting to
Cisco Web Security Services.
Solution