RS232. Pretty much anything over a serial line using RS232. Now, you
can put PPP on top of that, then run IP over PPP. But that's not what
we're talking about here.
Actually, getty has no clue about RS232. The kernel does and getty
just tells the kernel what to send out via whatever method.
UNIX does kind of fake a serial terminal (albeit a very fast one)
via the network, but it is a different process. Not that I know, but
probably in the beginning of UNIX days, it was the same method. But
that's all kernel-evel stuff.
On Fri, 17 Mar 2000, shirley dwyer wrote:
> Hi,
>
> I have a basic question.
>
> (1) For intstance what protocol does login or getty use ? Assuming if one
> succesfully connects a dumb terminal to the serial line (tty1 or tty2)
> and gets a login prompt, I would think getty uses some protocol to that
> serial connection - is this tcp/ip or is it rs-232 ?
>
> (2) I know or think that the Berkley (BSD) system creates pseudo terminals
> over the ethernet using TCP/IP - could be wrong ?
>
> Thanks.
>
> Shirley
>
> email : [EMAIL PROTECTED]
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