Run unix commands from Java - Auth fail

Question

I am trying to use this code for running unix command from java:

        // Initialize a ConnBean object, parameter list is ip, username, password
        ConnBean cb = new ConnBean("servername", "username","");

        // Put the ConnBean instance as parameter for SSHExec static method getInstance(ConnBean) to retrieve a singleton SSHExec instance
        SSHExec ssh = SSHExec.getInstance(cb);

        // Connect to server
        Boolean isConnected = ssh.connect();

            String[] commands = new String[]{"sudo echo 'Hello command!.' > ChenTest.txt"};
            CustomTask sampleTask = new ExecCommand(commands);

            try {
                Result result = ssh.exec(sampleTask);
            } catch (TaskExecFailException e) {
                System.out.println(e);
            }
            catch (Exception e) {
                System.out.println(e);
            }

When i debug my app i get "Auth fail".

I know that my server and username are correct, but not sure why can`t i connect. I have a key on this unix server ..do i need to add it somewhere in my code to make the connection succeed?

I dont see port no in code. Which port you are connecting to? — Devesh
– Devesh, Commented Jun 17, 2014 at 11:30
What i wanted to know if there is maybe a way to tell the java code i have a key..maybe even add the file path there somehow. — FelProNet
– FelProNet, Commented Jun 17, 2014 at 13:16

John C · Accepted Answer · 2014-06-17 14:57:42Z

0

It looks like you are connecting with a public key instead of using a password.

To do that I think you need to configure SSHExec to know where your key file is located.

I'm not a java guy but I think you need something like this:

SSHExec.setOption("keyfile", "/home/user/.ssh/id_dsa.pub");

Your key file will be different.

answered Jun 17, 2014 at 14:57

John C

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1 Comment

FelProNet Over a year ago

It could be a good idea, but there is a list of IOptionName.<SomeConstOption> and it does not contain the key file path. It is very strange that there is no documentation for such a thing i have to say.

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