Hi, For **testing** purposes, you also can copy the ldap jar file to your tomcat cas app: copy /opt/cas/modules/cas-server-support-ldap-3.1.1.jar to /opt/tomcat/webapps/cas/WEB-INF/lib/cas-server-support-ldap-3.1.1.jar and configure your LDAP from /opt/tomcat/webapps/cas/WEB-INF/deployerConfigContext.xml Best, Chris