How to resolve Connection timed out exception when using Jsch through Jump server?

Asked Sep 17 '14 at 14:21

Active Sep 17 '14 at 16:19

Viewed 629 times

I am trying to connect to a server through a jump server. I am using Jsch 0.51 and trying to connect using the setPortForwardingL method.

However, I am getting the following exception while connecting: java.net.ConnectException: Connection timed out

I am basically following the example given here: http://www.jcraft.com/jsch/examples/JumpHosts.java.html

What could be the reasons for this exception?

Edit: Adding the code snippet which is throwing the exception:

//Trying to connect to the Jump server in this snippet
JSch jsch = new JSch();
Properties config = new Properties();
config.put("StrictHostKeyChecking", "no");
Session session = jsch.getSession(username, hostname, 22);
session.setPassword(password);
session.setConfig(config);
session.connect(); //Getting the ConnectException here

edited Sep 17 '14 at 16:19

asked Sep 17 '14 at 14:21

vaisakh

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Where in the sequence do you get the connection timeout? It would be helpful to see the code. – Petter Sep 17 '14 at 14:25
Hi @Petter, I have added the code snippet where exception is occurring. – vaisakh Sep 17 '14 at 16:20
Does it work to ssh to the same hostname and port using the command line? – Petter Sep 17 '14 at 16:35
Yes, this was run from a Windows machine, and I am able to connect to the server via putty from the same machine. – vaisakh Sep 17 '14 at 16:44

How to resolve Connection timed out exception when using Jsch through Jump server?

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