Create SSH Connection in Java

MD Aminul Islam Sep 19, 2022
Create SSH Connection in Java

The SSH, also known as the Secure Shell or Secure Socket Shell, is a network protocol that allows us to connect over a secured connection to another computer.

Today’s tutorial discusses how to open an SSH connection and demonstrates the use of JSch and Apache Mina SSHD to create an SSH connection.

Create SSH Connection in Java

There are various ways but using JSch and Apache Mina SSHD are the most common, so let’s learn them one by one.

Method 1: Use JSch to Create an SSH Connection in Java

JSch is an implementation of SSH2 written in pure Java. This library allows you to connect to an SSHD server. It also allows you to use X11 forwarding, port forwarding, file transfer, and more.

Our example below will create a simple SSH connection using the JSch.

Example Code:

// Importing necessary packages
import com.jcraft.jsch.*;

public class JavaJSCH {
    public static void main(String[] args) {
        // Organizing all necessary elements for authenticating
        String MyHost="";
        String User="demo";
        String Password="password";

            // Configuring
            java.util.Properties Config = new java.util.Properties();

            // Disable the 'StrictHostKeyChecking'
            Config.put("StrictHostKeyChecking", "no");

            // Declaring a JSch object
            JSch Jsch = new JSch();

            //Creating a session
            Session MySession=Jsch.getSession(User, MyHost, 22);

            // Setting the session password

            // Configuring the session

            // Connecting the session
            System.out.println("Successfully Connected !!!");

        }catch(Exception e){


Successfully Connected !!!

Method 2: Use Apache Mina SSHD to Create an SSH Connection in Java

The Apache Mina SSHD is another library to create a connection with a server using the SSH protocols. This library is also written in pure Java, and the library is mainly based on Apache MINA.

Our example below will create a simple SSH connection using the Apache Mina SSHD.

Example Code:

// Importing necessary packages
import java.nio.charset.Charset;
import org.apache.mina.example.reverser.ReverseProtocolHandler;

import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;

public class JavaSSHD {

//Specifying the PORT
private static final int PORT = 8080;

    public static void main(String[] args) throws Exception {

        // Creating an acceptor object
        NioSocketAcceptor TheAcceptor = new NioSocketAcceptor();
        // Preparing the configuration
        TheAcceptor.getFilterChain().addLast("logger", new LoggingFilter());
        TheAcceptor.getFilterChain().addLast("codec", new ProtocolCodecFilter(
                                             new TextLineCodecFactory(

        // Binding all necessary things
        TheAcceptor.setHandler(new ReverseProtocolHandler());
        TheAcceptor.bind(new InetSocketAddress(PORT));
        System.out.println("Listening on port " + PORT);

The example shared above illustrates a basic level of a server program that provides a list of the port. When you run the example code shared above, you will get the below output in your console.


Listening on port 8080
MD Aminul Islam avatar MD Aminul Islam avatar

Aminul Is an Expert Technical Writer and Full-Stack Developer. He has hands-on working experience on numerous Developer Platforms and SAAS startups. He is highly skilled in numerous Programming languages and Frameworks. He can write professional technical articles like Reviews, Programming, Documentation, SOP, User manual, Whitepaper, etc.