I can't send message to another user in spite of enabling message. I'm using ubuntu 20.04 on VMware workstation.
Window 1
nguyenvanen@nguyenvanen:~$ mesg is y nguyenvanen@nguyenvanen:~$ _ Window 2
itachi@nguyenvanen:~$ write nguyenvanan write: nguyenvanan has messages disabled itachi@nguyenvanen:~$ _ Illustration

ssh?suor a graphical version ofsu? Something else?