Subject: Re: dty?
To: Martin J. Laubach <>
From: Bill Studenmund <>
List: tech-userlevel
Date: 10/12/1999 17:19:04
On Tue, 12 Oct 1999, Tim Rightnour wrote:

> On 12-Oct-99 Martin J. Laubach wrote:
> >   Okay, now that we know there are dialin ttys (dty) and callout
> > ttys (cty) -- what are they used for? There is no mention anywhere

dty's are dial OUT tty's, not dial IN. :-)

> > in the man pages, and I personally have never used anything but tty.
> > So what's the magic behind them?
> I think the idea is that you can run getty, or a fax receiver on the dty, and
> not have to muck around hupping init to run ppp outgoing..  IE: it separates
> incoming and outgoing connections in /etc/ttys, so you can have both configured
> at once.  This should probably be documented if it isn't.

You run getty/fax receiver on the tty, and run outgoing ppp on the dty.

I have no idea what the cty's do, but only usb devices have them, so I
think they are for some usb goofyness.

Take care,