IGEL Cloud Gateway 2.01 ICG How-Tos Current: How to Configure Apache Tomcat for TLS 1.2 Only PDF Download PDF Download page How to Configure Apache Tomcat for TLS 1.2 Only. Current page All pages How to Configure Apache Tomcat for TLS 1.2 Only For security reasons, it is strongly recommended to allow HTTP communication solely over TLS 1.2 (Transport Layer Security).To enable TLS 1.2 only, proceed as follows:Log in to the ICG machine and become root (or use sudo for the following commands).Open the configuration file opt/IGEL/icg/usg/conf/application.properties with your editor of choice.Go to the section #tomcat and ssl configsAdd the line server.ssl.enabled-protocols=TLSv1.2Save the changes.Restart the ICG with systemctl restart icg-server.service ×