Am Fri, 18 Dec 2015 16:46:45 +0100
schrieb Mohamed Boussaa <mohamedbouss...@gmail.com>:
> I did that but I got "connection refused"
>
>
>
> StringBuilder outputBuffer = new StringBuilder();
>
>
> String host="10.0.0.1"; // First level target
>
> String user="user1";
>
> String password="pass1";
>
> String tunnelRemoteHost="10.0.0.22"; // The host of the
> second target
>
> String secondPassword="pass2";
>
> int port=22;
>
>
>
> JSch jsch=new JSch();
>
> Session session=jsch.getSession(user, host, port);
>
> session.setPassword(password);
>
> localUserInfo lui=new localUserInfo();
>
> session.setUserInfo(lui);
>
> session.setConfig("StrictHostKeyChecking", "no");
>
> // create port from 2233 on local system to port 22 on
> tunnelRemoteHost
>
> session.setPortForwardingL(2251, tunnelRemoteHost, 22);
>
> session.connect();
>
> session.openChannel("direct-tcpip");
>
>
> // create a session connected to port 2233 on the local host.
>
> Session secondSession = jsch.getSession("user2",
> tunnelRemoteHost, 2251);
I didn't test or compile anything, but I think this line is wrong.
You opened up your tunnel port on the FIRST host. So you have to
connect to your first host (ip 10.0.0.1 - called "host" in your code)
to reach the second one by tunnel.
regards
Hajo
>
> secondSession.setPassword(secondPassword);
>
> secondSession.setUserInfo(lui);
>
> secondSession.setConfig("StrictHostKeyChecking", "no");
>
>
> secondSession.connect(); // now we're connected to the
> secondary system
>
> Channel channel=secondSession.openChannel("exec");
>
> ((ChannelExec)channel).setCommand("hostname");
>
>
> channel.setInputStream(null);
>
>
> InputStream stdout=channel.getInputStream();
>
>
> channel.connect();
>
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