You will also need to add two files:
1) /etc/tomcat7inst/jmxremote.password
#monitorRole tomcat
#controlRole tomcat
user password
2) /etc/tomcat7inst/jmxremote.access
#monitorRole readonly
#controlRole readwrite
user readwrite
4)
chmod 600 /etc/tomcat7inst/jmxremote.*
chown tomcat7:tomcat7 /etc/tomcat7inst/jmxremote.*
5) Edit /etc/tomcat7inst/8xx/bin/startup.sh
Add to existing options:
export JAVA_OPTS="-Dcom.qbw.instance=811
-Xms1g -Xmx1g -XX:MaxPermSize=128m
-Djava.rmi.server.hostname=192.168.1.xx
-Dcom.sun.management.jmxremote.port=xxy9
-Dcom.sun.management.jmxremote.ssl=false
-Dcom.sun.management.jmxremote.authenticate=true
-Dcom.sun.management.jmxremote.password.file=/etc/tomcat7inst/jmxremote.password
-Dcom.sun.management.jmxremote.access.file=/etc/tomcat7inst/jmxremote.access
"
6)
/etc/tomcat7inst/8xx/bin/shutdown.sh
/etc/tomcat7inst/8xx/bin/startup.sh