Fwd: [ILUG] [Beginner] SSH Tunneling

[Kevin Harry]

Thanks a lot Jon! Your solution worked great! :)

Cheers,
Kevin


________________________________
 From: Jonathan McCrohan <jmccrohan at gmail.com>
To: 
Cc: ilug at linux.ie 
Sent: Friday, July 20, 2012 5:06 PM
Subject: Fwd: [ILUG] [Beginner] SSH Tunneling
 
[Forgot to CC list]

---------- Forwarded message ----------
From: Jonathan McCrohan <jmccrohan at gmail.com>
Date: 20 July 2012 16:04
Subject: Re: [ILUG] [Beginner] SSH Tunneling
To: Kevin Harry <eskimo1987 at yahoo.com>


Hi Kevin,

On 20 July 2012 15:11, Kevin Harry <eskimo1987 at yahoo.com> wrote:
> 1) @local:ssh -L 2222:xeon:22 kevin at fenom (logs-in to fenom)
> 2) @fenom: ssh -L 50130:localhost:50130 kevin at xeon
> 3) @local: ssh -p 2222 kevin at localhost
> 4) @local: ssh -L 50130:localhost:50130 kevin at fenom

This can be reduced down to a single command through SSH bouncing. Use
the following ~/.ssh/config file:
Host xeon
Hostname xeon.collegedomain.ie
User xeon-username
ProxyCommand ssh fenomusername at fenom.collegedomain.ie /bin/nc -w 1
xeon.collegedomain.ie 22

To log into your xeon host from local, and port forward hadoop to localhost:
user at local:~$ ssh xeon -L50130:localhost:50130

Jon
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