Run Dropbox app/service under different (uid), while in current session ?

[knuckleup]

So im testing the Dropbox app on Xubuntu:

Within the Dropbox folder is a encrypted TrueCrypt volume, for backups.{yes, i know it only syncs to cloud when unmounted}

Is it possible to run it under a different user name(uid)non-administrator, while in a current session?{ due to X11 security issues}

Can this "start-stop-daemon" i heard of do this,or something else?...is there a GUI for it?

If the above can be done, the idea is to then restrict access to that shared folder using (ACLs) via "Eiciel".

[digininja]

Don't understand what you are trying to do, what is the problem you are trying to solve?

The only answer I can give on current information is to look at sudo or su to allow you to run apps as alternative users.

[knuckleup]

Is it possible to run Dropbox simultaneously under a different user name(uid)non-administrator, while in a current session?{ due to X11 security issues= password sniffing!}

User-1(Tod), uid 1000, (this is the main desktop,current session).

User-2(David)[non-administrator], uid 1001, (to isolate app from main desktop).

They share restricted permission the "/Dropbox" folder.

At a later point i will further lock-down Dropbox app,under uid 1001, with Apparmor profile.

[digininja]

Yes, look how sudo works. You can set it up so that Tod (who I hope is also not an administrator) can run commands (or a single one) as David. You'd need to edit the /etc/sudoers file to allow this then use

sudo -u David dropbox

That would start dropbox as the David user.

What are the X11 security issues you are talking about?