ttys file question

Jack Mc Lauren jack.mclauren at
Mon Sep 9 06:13:46 UTC 2013

>> But I can not connect to my server with this configuration. But if I
>> change ttyu6 to cuau6, everything works fine! I don't understand the
>> difference, would you please explain the reason for me?
>    In short the tty devices are for outgoing connections, the cua
>devices are for incoming connections.
>    For more detail see sio(4), after all the detail about multi-port
>serial cards and their master ports comes a couple of paragraphs >describing
>the devices associated with each serial port in detail.
>Steve O'Hara-Smith <steve at>

Thanks. Another question is how can I change the default values of e.g. databits, stopbits and ... for the device?
I can set the speed in /etc/ttys.

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