To make screen run as suid root, as the root user do: chmod +s /usr/bin/screen Then: USER1: Start a screen session by typing "screen" at the terminal. Press ctrl+a and then the colon (":") key to enter commands. when you do that, you'll see a highlighted colon prompt at the bottom of the screen. Then turn on multiuser by typing: "multiuser on" and then grant permission by hitting ctrl+a and typing "acladd USER2". USER2: Can now connect to the USER1 screen by typing "screen -x USER1/