Re: [SLUG] Help with switch user

[jam <jam@xxxxxxxxx>]

On Monday 09 November 2009 08:12:14 you wrote:
> On Sat, Nov 07, 2009 at 01:09:00PM +0800, jam wrote:
> > Hi
> > on the various distros log-out-switch-user prompts for a password as the
> > second user logs out and the first user is exposed again. Tried for weeks
> > to disable this anal fettish but I cannot find where. Help please,
> > anybody ... (This is just like lock on screen saver, but that is easy to
> > disable) James
> > PS please no naive lectures about how I don't want to do this, I do!
>
> To summarise, you want anyone to login with no password required?
> (except maybe root)
>
> I think the best place to do this is PAM.  You could set it so they
> still need passwords via ssh but not the console gui (gdm/kdm).

Actually THAT is easy, this is much harder:

UserA logs in (auto or with password)
UserB comes along so UserA does logout->switch user
UserB logs in to the new session, does their thing and logs out
UserA's session is now exposed behind a password dialog. This gives her the 
sh-one-ts as userB could have done <ctrl><alt>F7 to browse her session before 
the logout, but now needs to enter her password to access her (UserA)'s 
original session. This looks exactly like the screensaver password dialog but 
I cannot find how sessionA is locked when switching to sessionB.

James