Scenario. I am sitting on a laptop at my work station (windows with putty). My target is sitting in another room with his own ubuntu laptop with his own user.
I want to use the mpg321 program to play a wav file on HIS machine on his user, by logging in via ssh with my user and executing mpg321.
I have tried using sudo -u his_username, normal sudo, no sudo, but for some reason the sound does not play.