Have tmux not ask for sudo password for a process in session (authenticate beforehand)? I have already seen [[SOLVED] Why sudo asks for user password in tmux/ssh session? · GitHub Gist]( and it looks like this is there by design, but I thought I'd ask anyways: Say I use a command like this: tmux new-session -d 'sudo udevadm monitor -e' \; attach As soon as `tmux` starts the new session, it asks for the `sudo` password, as expected. But then I try to "cheat" by attempting to validate `sudo` beforehand: $ sudo --validate [sudo] password for user: $ tmux new-session -d 'sudo udevadm monitor -e' \; attach ... and this asks _again_ for a `sudo` password as soon as `tmux` starts the session - even if I already entered the password successfully beforehand. So is there a way to start a `tmux` session with (a) sudo'ed process(es) inside, with only one sudo password validation beforehand?

The simplest solution, if you can modify /etc/sudoers, is to unset the `tty_tickets` option for your user:


Defaults:yourlogin !tty_tickets


Then you can run a sudo command before running tmux, and sudo will update your (single) timestamp and allow the subsequent sudo commands without a password prompt (within the timestamp_timeout).

This is the pertinent option because, typically, the tty_tickets option is set, which requires a password for each tty and tmux starts a new tty.