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How to enable SSL debug logging

DISCLAIMER: Enabling this logging may reveal sensitive information in the log.

Purpose

This article provides instructions on how to enable SSL debug logging in the application server log in order to troubleshoot certificate issues.

Instructions

Tomcat

Add the following line to the setenv.sh (.bat) file located in <APPIAN_HOME>/tomcat/apache-tomcat/bin:

Linux (.sh):

export CATALINA_OPTS="$CATALINA_OPTS -Djavax.net.debug=ssl"

Windows (.bat): 

set CATALINA_OPTS=%CATALINA_OPTS% -Djavax.net.debug=ssl

Then restart the Tomcat server.

JBoss

Add the following to the CUSTOM_JAVA_OPTS variable in standalone.custom.sh (.bat):

-Djavax.net.debug=ssl:handshake

Then restart the JBoss server.

Affected Versions

This article applies to all versions of Appian.

Last Reviewed: March 2020