sudo sessions be shared across tabs of
gnome-terminal, so that once I use
sudo in one tab, I won't have to re-enter my password every time I open another tab and use
sudo authentications across all shell sessions (not only the tabs of a specific
gnome-terminal instance), you will need to add this line to your
/etc/sudoers file (use
visudo to do so):
sudoers uses time stamp files for credential caching. Once a user has been authenticated, a time stamp is updated and the user may then use sudo without a password for a short period of time (15 minutes unless overridden by the timeout option. By default, sudoers uses a tty-based time stamp which means that there is a separate time stamp for each of a user's login sessions. The tty_tickets option can be disabled to force the use of a single time stamp for all of a user's sessions. [...] tty_tickets If set, users must authenticate on a per-tty basis. With this flag enabled, sudo will use a file named for the tty the user is logged in on in the user's time stamp directory. If disabled, the time stamp of the directory is used instead. This flag is on by default.