writing to another machine's /dev/ttyS0... how?

[Robert Brockway]

On Mon, 11 Sep 2006, William Park wrote:

> Is there an easy way to write to /dev/ttyS0 (dumb serial device)
> attached to another machine.  On that remote machine, I just do
>    cat ... > /dev/ttyS0
>
> But, how do I this from separate machine?  I guess, I can use 'inetd'
> method, but there has to be better way.

Ssh should work.  Something like:

echo "Bob is a cool guy" | ssh $REMOTEHOST "cat > /dev/ttyS0"

With the right use of ssh-agent or null passphrases the access can be 
transparent.

Rob

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