Cisco Cisco Web Security Appliance S170 Guía Del Usuario
20-2
Cisco AsyncOS for Web User Guide
Chapter 20 Monitor System Activity Through Logs
Tasks for Logging
Tasks for Logging
Best Practices for Logging
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Avoid creating multiple logging subscriptions and using high detail levels when possible, as these
can adversely affect system performance.
can adversely affect system performance.
Planning For Logging
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Log Types
A log type defines the range of activity that is recorded in log files of that type. The Web Security
appliance provides numerous log types, each of which logs activity related to a specific area.
appliance provides numerous log types, each of which logs activity related to a specific area.
Two of the main log types that administrators use for normal appliance monitoring are the Access logs
and Traffic Monitor logs. Access logs record activity related to client access through the web proxy,
including filtering and scanning activity. Traffic Monitor logs record activity related to Layer-4 traffic
monitoring.
and Traffic Monitor logs. Access logs record activity related to client access through the web proxy,
including filtering and scanning activity. Traffic Monitor logs record activity related to Layer-4 traffic
monitoring.
Access logs are further divided into standard Access logs and W3C compliant access logs. Both can
record the same range of activity but do so in different formats. W3C are also more customizable with
regard to their content and layout than standard Access logs.
record the same range of activity but do so in different formats. W3C are also more customizable with
regard to their content and layout than standard Access logs.
Steps
Task
Links to Related Topics and Procedures
1
Plan logging tasks:
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Review the best practices for logging
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Review logging concepts
2
Create or change logging subscriptions
3
View log files
4
Understand Access logs
5
Understand W3C compliant Access logs
7
Customizing Access and W3C Access logs
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Understand Traffic Monitor logs
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Find log file reference information