Date: Sun, 9 Jul 2000 21:51:28 +0200 (CEST) From: Paul Herman <pherman@frenchfries.net> To: Mark Ovens <mark@dogma.freebsd-uk.eu.org> Cc: questions@FreeBSD.ORG Subject: Re: Question about the use of ssh-agent(1) Message-ID: <Pine.BSF.4.21.0007092134220.2764-100000@bagabeedaboo.security.at12.de> In-Reply-To: <20000709195220.C233@parish>
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On Sun, 9 Jul 2000, Mark Ovens wrote:
> I've read the manpages for ssh-agent(1) and ssh-add(1) but require
> clarification on a couple of points.
>
> Is adding:
>
> eval `ssh-agent`
> ssh-add
>
> to ~/.login {a,the} correct way to start it?
Looks good. Don't forget "ssh-agent -k" in ~/.logout.
> If I login (as the same user) on more than one ttyv do I need to run
> an ssh-agent on each login?
>
> If not, should the commands in ~/.login be:
>
> if (! $SSH_AGENT_PID ) then
> eval `ssh-agent`
> ssh-add
> fi
This would be a good idea anyway in case a login shell gets evoked
somehow from your shell (xterms do this a lot) but it won't help you
when login in on a separate ttyv. :(
A trick way to do this would be to do something like (sorry for Bourne
notation):
if [ "x$SSH_AGENT_PID" = "x" ]; then
if [ -r ~/.ssh-env ]
then eval < ~/.ssh-env
else "eval `ssh-agent` > ~/.ssh-env"
fi
fi
in ~/.login, and remove ~/.ssh-env in ~/.logout. The only problem is,
it must only be removed on the *last* logout. This can be done, but I
don't see an easy way. This is left as an exercise for the reader.
:)
Short answer: as far as I know, not so easy with multiple logins,
unless you just have multiple agents (or empty password...)
-Paul.
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