Perform the following steps to disable SSL renegotiations in Administration Console:
Open the /opt/novell/nam/adminconsole/conf/tomcat7.conf file.
Ensure that the following lines exist:
JAVA_OPTS="${JAVA_OPTS} -Dsun.security.ssl.allowUnsafeRenegotiation=false"
JAVA_OPTS="${JAVA_OPTS} -Djdk.tls.rejectClientInitiatedRenegotiation=true"