knuckleup

Under Ubuntu or Xubuntu 14.04/ 15.10/ 16.04: Say i have a established wireless connection that i can connect/disconnect from via "Network Manager". Is there a script or something i can use to connect to this AP when an particular event happens?....eg When a video file is written to a particular folder on the host. Then after a set time frame (15 minutes)disconnect from that AP. If this can be done, please describe step-by-step?

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.

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".