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After installing Termbeamer (see termbeamer.com) you can use it to share a terminal session with one or more others even from behind a firewall or NAT.
One person does `mkfifo foo; script -f foo' and another can supervise real-time what is being done using `cat foo'.
uses fifo and sets to a specific port. In this case 4201.
Shorter version with proper stderr redirection .