JSch is a pure Java implementation of SSH-2. SSH (Secure Shell) is a cryptographic network protocol for operating network services securely over an unsecured network. The following code snippet shows you how to open a connection to an ssh server.

package org.kodejava.jsch;

import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;

public class SSHConnect {
    public static void main(String[] args) {
        try {
            JSch jSch = new JSch();

            Session session = jSch.getSession("admin", "192.168.56.201", 22);
            session.setPassword("s3cret##");
            session.setConfig("StrictHostKeyChecking", "no");
            session.connect();

            System.out.println("Connected...");
        } catch (JSchException e) {
            e.printStackTrace();
        }
    }
}

Maven Dependencies

<dependencies>
    <!--https://search.maven.org/remotecontent?filepath=com/jcraft/jsch/0.1.55/jsch-0.1.55.jar-->
    <dependency>
        <groupId>com.jcraft</groupId>
        <artifactId>jsch</artifactId>
        <version>0.1.55</version>
    </dependency>
</dependencies>