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From: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>
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Subject: Re: Accessing Computer
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Carmel <carmel_ny@hotmail.com> writes:

> On Fri, 8 Jan 2010 14:58:23 +0100 Pieter de Goeje <pieter@service2media.com> articulated:
>
>> You might want to take a look at ssh-agent. I think PuTTY has an equivalent. 
>> It lets you do remote logins without putting your key(s) everywhere. I've not 
>> yet tried this myself, but I plan on testing it sometime.
>
> I use agent.  All that agent does is cache your password so you do not
> have to re-enter it each time you make a connection.

The agent can be forwarded with the connection.  
In your case, it would remove the need for a second key on the second machine.

-- 
Lowell Gilbert, embedded/networking software engineer, Boston area
		http://be-well.ilk.org/~lowell/