Sharing COM ports to Windows hosts

Victor Sudakov vas at
Mon Sep 3 10:21:22 UTC 2012

Polytropon wrote:
> > 
> > There is a FreeBSD box with several RS232 ports. Can those ports be
> > accessed by Windows hosts over the network? Actually, does anyone
> > have a success story for such a scenario?
> > 
> > There is some software like comms/serialoverip, comms/tits etc but are
> > there any (freeware) Windows virtual COM port drivers compatible
> > therewith?
> > 
> > Maybe some Windows drivers for hardware console servers (like Moxa)
> > would work with tits etc?
> It is _easily_ possible, even though my own experiences do
> not include doing this with "Windows", but with other BSD
> boxes and even DOS.
> First you have to enable a serial terminal connection just
> the same way you handle the virtual terminals in text mode:
> Edit /etc/ttys and enable the line
> 	ttyu0  "/usr/libexec/getty std.19200" dialup  on  secure

Sorry, Polytropon, you understood the challenge the wrong way around. 
Have you ever heard of "reverse telnet" and "reverse ssh" (these are
terms from the Cisco world though). 

I am trying to use an existing FreeBSD box as an el cheapo portserver.
I don't need to use the Windows box as a serial terminal.

Victor Sudakov,  VAS4-RIPE, VAS47-RIPN
sip:sudakov at

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