No Subject

[aromes]

Linux 5.0
kernel2.0.34

I have 2 linux box connected to each other by ethernet connection (10 base
T unshielded twisted pair cable).
I just wanna know how I can send a message from one PC to the other??
Exple: on computer A, I wanna send the message "Hello guys!" so that people
on computer B could see it!

Thanks