Terminal screensharing with screen (howto)

on server / computer hosting the meeting:

add user remoteguest:

useradd -m remoteguest

set suid:

chmod u+s /usr/bin/screen

give read permission:

chmod a+r /var/run/screen

share terminal session:

screen -L -S Multiuser

Set multiuser permission (hit Ctrl-A to enter commands when in screen):

:multiuser on 
:acladd remoteguest

on client / participant

login to host / server:

ssh ...

$USERNAME is the user under which you started the first screen command:

screen -x $USERNAME/Multiuser
ssh remoteguest@
screen -x glutz/Multiuser