Set up SSL for JConsole (JMX)

Using JConsole with SSL requires the same JMX changes to cassandra-env.sh as nodetool.

The location of the cassandra-env.sh file depends on the type of installation:

Package installations: /etc/hcd/cassandra/cassandra-env.sh
Tarball installations: <installation_location>/resources/cassandra/conf/cassandra-env.sh

See Configure SSL for nodetool, nodesync, dsetool, and Advanced Replication. You do not need to create a nodetool-ssl.properties file, but the same JVM keystore and truststore options must be specified with jconsole on the command line.

Prerequisites

Copy the keystore and truststore files to the node where JConsole is to be run. In this example, the files are server-keystore.jks and server-truststore.jks.
Run jconsole using the JVM options:
```
jconsole -J-Djavax.net.ssl.keyStore=<server-keystore.jks>
-J-Djavax.net.ssl.keyStorePassword=<keystore-password>
-J-Djavax.net.ssl.trustStore=<server-truststore.jks>
-J-Djavax.net.ssl.trustStorePassword=<truststore-password>
```
If no errors occur, JConsole starts. If connecting to a remote node, select Remote Process and enter the hostname and JMX port. If using authentication, enter the username and password. See Using JConsole for more information.