[comp.unix.xenix] Unix box as modem server

gumby@ucrmath.ucr.edu (john donahue) (02/09/90)

	I was wondering if someone has a solution for my problem regarding the
usage of my Unix machine as a "modem server" of sorts.  Here's the deal, I
have my Macintosh hooked up to my Unix box via an ordinary serial cable
and I use MicroPhone as the term program. Everything works fine when I
login. I can send and receive files using "sz/rz" and I'm very happy with
this. However, I only have one modem; an HST. It is hooked up to my Unix
box for UUCP transmission and letting users login to my system. I would
like to be able to *not* have to switch cables when I want to call out
using my Mac (to call Mac BBSs and upload/download, etc).

	So, a friend and I were talking and we tried to connect to a remote site
by logging into the Unix box directly and then calling out on the Unix machine
using "cu". It "sorta" worked. I connected to another remote site and 
attempted to send a file using "sz". MicroPhone on my Mac recognized this and
started to receive the file using Zmodem. The problem is, though the modem
lights stayed on, no data was received on my Mac (actually, about 768
bytes eventually flowed through, but only after about 8 time-outs and
errors, etc).

	So, we are guessing as to what happened and what the solution might be.
Perhaps someone else out there would like to be able to do this, and perhaps
someone has and has a solution. One temporary workaround is to login to the
Unix box, then use kermit, then get the files I want, and then download them
over the serial cable at 38,400 bps. The thing is, when using Kermit, I
cannot use the Zmodem protocol! I heard that the new version of Kermit (3.0)
is out now, but I don't know where to find it (I have Internet access and
FTP and all that so it's no problem -- simply direct me if you know). From
what I understand, 3.0 will let you fork a process using "$" and then it
will remap the I/O to the new process so Kermit and the child do not fight
for incoming data. This would be an acceptable solution, but I would REALLY
like to get it to work with "cu" so that the file is taken from the remote
host and IMMEDIATELY stored on my Mac without having to temporarily store it
on the Unix box.

If you have any ideas, insight, comments, or out-and-out solutions, please
let me know -- or post, as some others may be interested as well.

-- John Donahue

gumby@ucrmath.ucr.edu
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