ADC

Ease of troubleshooting with Web Application Firewall logs

September 14, 2021

Contributed by:

S S

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 <profile_name> -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 to Security > Profiles.
In the Profiles page, click Add.
In the Citrix Web App Firewall Profile page, click Profile Settings under Advanced Settings.
In the Profile Settings section, select the detailed WAF log level in the Verbose Log Level field.
Click OK and Done.

The official version of this content is in English. Some of the Cloud Software Group documentation content is machine translated for your convenience only. Cloud Software Group has no control over machine-translated content, which may contain errors, inaccuracies or unsuitable language. No warranty of any kind, either expressed or implied, is made as to the accuracy, reliability, suitability, or correctness of any translations made from the English original into any other language, or that your Cloud Software Group product or service conforms to any machine translated content, and any warranty provided under the applicable end user license agreement or terms of service, or any other agreement with Cloud Software Group, that the product or service conforms with any documentation shall not apply to the extent that such documentation has been machine translated. Cloud Software Group will not be held responsible for any damage or issues that may arise from using machine-translated content.

Ease of troubleshooting with Web Application Firewall logs

September 14, 2021

Contributed by:

S S

September 14, 2021

Contributed by:

S S

Ease of troubleshooting with Web Application Firewall logs

Configuring verbose log level by using the command interface

Example

Configuring verbose log level by using the Citrix ADC GUI

In this article