Hi,
I have a linux machine which I need to connect and send list of commands
using jsch java jar.
Following are the operations need to perform in linux server:
1. Connect linux server using ssh.
2. Execute login command and provide user name and password in linux shell
3. Show details of user.
Below are the commands which I need to automate using SSH connection.
[local_hots] mysh>login useradmin
Please enter user name: User1
Enter pin :
> ******** ("123456" hint)
Authentication successful.
useradmin login successful.
Command Result : 0 (Success)
[local_host] mysh:> show user
I have connected linux server and send login command successfully through
java code but not able to enter user name and password.
Below is code which I am using
///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintStream;
import java.util.Properties;
import com.jcraft.jsch.Channel;
import com.jcraft.jsch.ChannelExec;
import com.jcraft.jsch.ChannelShell;
import com.jcraft.jsch.JSch;
import com.jcraft.jsch.JSchException;
import com.jcraft.jsch.Session;
public class JSchExampleSSHConnection {
/**
* JSch Example Tutorial
* Java SSH Connection Program
* @return
*/
public static void main(String[] args) throws JSchException {
String host="192.168.1.10";
String user="admin";
String password="linuxserver@123";
JSch shell = new JSch();
// get a new session
Session session = null;
String privateKey = "C:\\Users\\rahul\\.ssh\\id_rsa";
try {
shell.addIdentity(privateKey);
} catch (JSchException e1) {
// TODO Auto-generated catch block
e1.printStackTrace();
}
try {
session = shell.getSession(user, host, 22);
System.out.println(session);
//Session session = shell.getSession(userName, hostName, port);
session.setPassword(password);
Properties config = new Properties();
config.put("StrictHostKeyChecking", ""
+ "");
// java.util.Properties config=new java.util.Properties();
session.setConfig(config);
session.connect();
Channel channel = session.openChannel("shell");
OutputStream ops = channel.getOutputStream();
PrintStream ps = new PrintStream(ops, true);
channel.connect();
//give commands to be executed inside println.and can have
any no of commands sent.
ps.println("login useradmin"");
ps.println("User1");
ps.println("password");
ps.close();
InputStream in=channel.getInputStream();
byte[] bt=new byte[1024];
while(true)
{
while(in.available()>0)
{
int i=in.read(bt, 0, 1024);
if(i<0)
break;
strCmdOutput = new String(bt, 0, i);
System.out.println(strCmdOutput);
}
if(channel.isClosed())
{
break;
}
Thread.sleep(10000);
channel.disconnect();
session.disconnect();
}
}catch (JSchException | IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
Thanks & Regards
Rahul Katoch
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