Ease of troubleshooting with Web Application Firewall logs
When there is a security attack, it is important to capture detailed WAF logging on the appliance. For this, you can configure the “VerboseLogLevel” parameter on an Application Firewall profile.
Consider a web traffic having a security attack. When the appliance receives the traffic, violation details such as HTTP header details, log pattern, and pattern payload information are logged and sent to the ADM server. The ADM server monitors the detailed logs and displays it on the Security Insight page for monitoring and tracking purpose.
Configuring verbose log level by using the command interface
To capture detailed WAF logs, configure the following command. At the command interface, type:
set appfw profile -VerboseLogLevel (pattern|patternPayload|patternPayloadHeader)
Example
set appfw profile profile1 –VerboseLogLevel patternPayloadHeader
The available log levels are:
- Pattern. Logs only violation pattern.
- Pattern payload. Logs violation pattern and 150 bytes of extra field element payload.
- Pattern payload header. Logs violation patter, 150 bytes of extra field element payload and HTTP header information.
Configuring verbose log level by using the Citrix ADC GUI
Follow the procedure below to configure the verbose log level in the WAF profile.
- On the navigation pane, navigate toSecurity>Profiles.
- In theProfilespage, clickAdd.
- In theCitrix Web App Firewall Profilepage, clickProfile SettingsunderAdvanced Settings.
- In theProfile Settingssection, select the detailed WAF log level in the Verbose Log Level field.
ClickOKandDone.
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