Is it normal, that when I am logged in as root, and the used su user, I can't access that users screen sessions? In this case, screen complains about it not having permissions on /dev/pts/x. I ...
Is it safe to close shell just by clicking "X" or using "ctrl+d" while logged in as root with su or is it safer to close it by typing "exit"? Is there any difference (security-wise) at all or is it ...