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MathGroup Archive 2005

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Re: Remote Mathematica kernels and SSH password

  • To: mathgroup at smc.vnet.net
  • Subject: [mg63112] Re: Remote Mathematica kernels and SSH password
  • From: Chris Rodgers <rodgers at physchem.NOSPAMox.aREMOVEc.uk>
  • Date: Thu, 15 Dec 2005 03:06:23 -0500 (EST)
  • Organization: Oxford University, England
  • References: <200512130841.DAA08229@smc.vnet.net> <Pine.LNX.4.63.0512131040200.9515@localhost.localdomain> <dnoq1m$2n3$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

>>If the connection is between two *nix machines, then I would suggest you
>>look at generating an ssh key pair. See "man ssh-keygen".
> 
> 
> No, I'm in a Windows XP machine connecting to a Linux machine.

Two things.

1. PuTTY is a great windows SSH client, download the package containing 
PuTTY, Pageant and PuTTYgen from 
http://www.chiark.greenend.org.uk/~sgtatham/putty/

2. Setting up a public key without a passphrase is a possible way of 
doing this, but not very secure. A better solution is to use an "SSH 
agent" e.g. Pageant. This way, you decrypt the key into memory when you 
log onto the machine, and then have to type the passphrase no more. 
However, once you log out or turn off the machine, it would be hard work 
for an attacker to make use of your private key to login to the other 
machines. For windows --> Linux login instructions see 
http://www.tartarus.org/~simon/puttydoc/Chapter8.html

Chris.


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