And PS, thanks for the elaboration! On 11/18/20 7:55 PM, Judah Milgram wrote: > On 11/18/20 10:04 AM, Moshe M. Katz wrote: >> I believe the intent here is to protect non-GUI console sessions, >> because they do not have a screensaver that can lock. > > Makes sense. More than once I've flipped over to a non-X virtual console > to do one thing after another, and forgotten to log out before flipping > back to X. > > But the way they do it, it gets exported from your first login shell on > down, and it's set readonly, so you can't unset it. So if you set up > some work in an xterm, and get distracted for 10 minutes (or work in > another xterm for 10 minutes), the xterm will silently disappear with no > warning. In fact, for the first week after it started, I was scouring > the logs trying to figure out why my xterms were crashing. > > Maybe there's a way to test whether the shell is starting up at a console. > > Peter's solution (zsh) works and I'm finding zsh pretty cool, to boot. > > Judah > >> >> The primary purpose of this is probably for servers, not desktops, but >> even desktops can be used in a console session by changing which virtual >> console you are using (the GUI is usually on console 7). You can switch >> consoles by pressing Ctrl+Alt+F{1-7}. (The "Ctrl" is only necessary when >> you are in the GUI; if you are already in a non-GUI console, you can >> just use Alt+F{1-7}.) >> >> Moshe >> >> -- >> Moshe Katz >> mmk...@umd.edu <mailto:mmk...@umd.edu> >> (301) 867-3732 >> >> <http://stackexchange.com/users/440421> >> >> >> On Wed, Nov 18, 2020 at 8:51 AM Judah Milgram <milg...@cgpp.com >> <mailto:milg...@cgpp.com>> wrote: >> >> Indirectly related to the bash question, my network overlords have >> implemented this directive: >> >> >> https://www.stigviewer.com/stig/red_hat_enterprise_linux_7/2018-11-28/finding/V-72223 >> >> Short version: export TMOUT=600 in /etc/profile, and set it read only. >> >> My question: is this a real security issue? How can the bad guy "take >> control" of a console session, without sitting down at my computer? >> Wouldn't a screen locker serve just as well? >> >> Or is this only about network connections? >> >> And what's a "management session"? >> >> Grateful for any enlightenment. >> >> thanks! >> Judah >> >> -- >> Judah Milgram >> milg...@cgpp.com <mailto:milg...@cgpp.com> >> 301-257-7069 >> >> You received this email because you are subscribed to the UM Linux >> User's Group (UM-LINUX) mailing list. If you would like to >> unsubscribe from this list, simply send an email to >> lists...@listserv.umd.edu <mailto:lists...@listserv.umd.edu> with >> the message signoff UM-LINUX in the body. >> >> You received this email because you are subscribed to the UM Linux >> User's Group (UM-LINUX) mailing list. If you would like to unsubscribe >> from this list, simply send an email to lists...@listserv.umd.edu with >> the message signoff UM-LINUX in the body. > >
-- Judah Milgram milg...@cgpp.com 301-257-7069 You received this email because you are subscribed to the UM Linux User's Group (UM-LINUX) mailing list. If you would like to unsubscribe from this list, simply send an email to lists...@listserv.umd.edu with the message signoff UM-LINUX in the body.