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[AWS EC2] How to use jconsole and visualVM [2] (remote connect Linux server)

 this article explains how to set up id and password authentication

so if you want to know how to use jconsole and visualVM

Click below link 


we have already figured out how to using it in previous article


this article only explains how to set up authentication


Modify setenv.sh



 

vi /usr/local/tomcat7/bin/setenv.sh

 

Open stenv.sh in your tomcat home directory through vi editor


 

#!/bin/sh

JMX_OPTS=" -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.password.file=/usr/local/tomcat7/conf/jmxremote.password -Dcom.sun.management.jmxremote.access.file=/usr/local/tomcat7/conf/jmxremote.access -Djava.rmi.server.hostname=52.79.134.63 -Dcom.sun.management.jmxremote.ssl=false"
CATALINA_OPTS=" ${JMX_OPTS} ${CATALINA_OPTS}"

 

and modify as above

 

looking closer, the value of '-Dcom.sun.management.jmxremote.authenticate' has been modified from false to true

and below code has been added

-Dcom.sun.management.jmxremote.password.file=/usr/local/tomcat7/conf/jmxremote.password 

-Dcom.sun.management.jmxremote.access.file=/usr/local/tomcat7/conf/jmxremote.access

 

this means settings that directory path of password file to be set and directory path of access file to be set


now we need to create jmxremote.password and jmxremote.access file in /usr/local/tomcat7/conf



Create jmxremote.access and jmxremote.password 

 

Open vi editor like this to create jmxremote.password

vi /usr/local/tomcat7/conf/jmxremote.password

 

and add below code

admin 1111
user 1111

 


I created two IDs with the ID admin Password 1111 and ID user and Password 1111

 

 

and then open vi editor to create jmxremote.access

 

vi /usr/local/tomcat7/conf/jmxremote.access

 

add it like below

 

admin readwrite
user readonly

 


 now we created completely


Give it execution permit for each file 

 chmod 750 /usr/local/tomcat7/conf/jmxremote.password
 chmod 750 /usr/local/tomcat7/conf/jmxremote.access

 


 

ok setting is ended

let's get start


Restart tomcat

 

[ Connecting jconsole]

 

 

 Enter the ip and port number and press admin for the username and 1111 for the password


then you will be connected

 

but if you press user for username and 1111 for password, you will not be able to access it

It seems to be accessible only if you have readwrite permissiion

 

[ Connecting visualVM ]

 

 

 

 Try to access as we accessed in the previous article 

 


you can access this too

 

 


finally, we connected jconsole and visualVM with using id and password

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