How to re-lock ssh private key?

[Todd Denniston]

Robert Nichols wrote, On 03/03/2009 02:29 PM:
> Todd Zullinger wrote:
>> Robert Nichols wrote:
>>> The process at the other end of $SSH_AUTH_SOCK is
>>> "gnome-keyring-daemon -d -login".  That process gets created when I
>>> log in.  Killing it doesn't strike me as a good idea.  Indeed, other
>>> keyring related stuff breaks if I do that.
>>
>> You can tell the keyring daemon not to provide ssh-agent services.
>> Perhaps doing that and using the ssh-agent from openssh (which I
>> believe is still started automatically if no agent is running
>> already).
>>
>> To disable ssh services in gnome-keyring-daemon:
>>
>> gconftool-2 --set -t bool /apps/gnome-keyring/daemon-components/ssh false
>>
>> Some very thin documentation on gnome-keyring-daemon's ssh handling is
>> at: http://live.gnome.org/GnomeKeyring/Ssh
> 
> Again, thanks for the effort, but NO-GO!
> 
> I tried changing the setting for that boolean to false, both with
> gconftool-2 and with the GUI gconf-editor, and also by running
> gconftool-2 as root.  No change, nada, zip!  Log out, log back in,
> reboot, ..., no change at all.  Unsetting the environment variable
> for SSH_ASKPASS (edited /etc/profile.d/gnome-ssh-askpass.sh so that
> the variable never gets set) changes nothing.  The only thing that
> has an effect is unsetting SSH_AUTH_SOCK, and doing that means that
> the passphrase is required _every_time_.
> 
> If SSH_AUTH_SOCK is unset or the socket is not present, ssh-add
> fails with "Could not open a connection to your authentication agent."
> Looks like the only options are (a) use gnome-keyring-daemon and
> accept that the key is unlocked forever, or (b) use nothing and
> enter the passphrase every time.
> 

I am not sure where to modify it now days, but IIRC ssh-agent is started 
before your window manager is going in the xinitrc.
it used to be around line 62 of /etc/X11/xinit/xinitrc-common

My guess is the -t needs applied to THAT instance of ssh-agent.

-- 
Todd Denniston
Crane Division, Naval Surface Warfare Center (NSWC Crane)
Harnessing the Power of Technology for the Warfighter