Cisco Cisco Email Security Appliance C170 사용자 가이드

The Security Services > URL Filtering page persistently indicates an issue connecting to 

Cisco Web Security Services. 

If you have enabled URL filtering but have not yet committed the change, commit the change. 

Check for recent alerts related to the connection with Cisco Web Security Services. See 

 and 

. 

If you are connecting via a proxy specified in Security Services > Service Updates, verify that this 
is configured and working properly. 

Check for other network issues that might prevent connection. 

If you see errors in the mail logs related to timed out requests to the SDS client, use the 

websecuritydiagnostics

 command and the 

websecurityadvancedconfig

 command in the 

command-line interface to investigate and make changes: 

If the diagnostics show that Response Time or DNS Lookup Time is not less than the configured 
URL Lookup Timeout, increase the URL Lookup Timeout value accordingly. 

If the diagnostics show that the cache size is at or near the capacity specified in the advanced 
configuration settings, increase the cache size. 

Check the mail logs for non-timeout errors in communications with the URL scanner, Cisco Web 
Security Services, or SDS. "SDS" in logs represents Cisco Web Security Services. If you see such 
log messages, contact TAC. 

Except for changes explicitly described in this document, make no other changes using the 

websecurityadvancedconfig

 command without guidance from TAC. 

Messages that contain URLs in a particular category are not found when searching by that 

category. 

See 

Malicious URLs and messages containing marketing links are not caught by the anti-spam or 

outbreak filters.