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From: beh@.mit.edu (Bruce E. Howells)
Newsgroups: comp.sys.apple2
Subject: Re: Uploading to UNIX systems
Message-ID: <1991Mar7.093818.18864@mintaka.lcs.mit.edu>
Date: 7 Mar 91 09:38:18 GMT
References: <1991Mar6.053412.22781@cunixf.cc.columbia.edu>
Sender: daemon@mintaka.lcs.mit.edu (Lucifer Maleficius)
Organization: Massachusetts Institute of Technology, Department of Economics
Lines: 45

In article <1991Mar6.053412.22781@cunixf.cc.columbia.edu> yk4@cunixb.cc.columbia.edu (Yong Su Kim) writes:
>Has anyone out there had success in uploading large files onto UNIX
>systems using ymodem batch, zmodem, xmodem using ProTerm?
>
>I can upload using Kermit, but when I try to upload anything using the
>above protoccols, I get an Ack Timeout error in ProTerm.  I can
>download without any problems.
>
>Could it have something to do with the terminal settings on the Suns?
>The terminal is configured in the following way:
>$ stty -a

> lots of nasty stty output deleted...


Kermit was specifically designed to handle all sorts of adverse
communications situations - x/y/zmodem, on the other hand, were
designed with other goals in mind.

Therefore, it's not suprising that you've found Kermit to be
successful, where others are failing.


Unfortunately, from there, it's pretty much a local issue.  At Boston
University, there was a question of which bank of dialups you came in
on - one would allow x/y/z, the other wouldn't.

Questions to ask the local person-who-knows-their-stuff:

Is the dialup path 7 or 8 bits?  If you're only getting a 7 bit path
(0-127), you're stuck with kermit.

Are characters eaten along the way?  If you lose some control
characters, I believe z allows control-character quoting, but I'm not
sure.  Cisco boxes get quite upset at control-^, for example.

Is my path into the machine 8 bits?  telnet usually is, rlogin usually
isn't.  Not something you usually think of, but when you get down to
"how are the bits getting through the wire" - it's stuff you have to
know.

Hope this helps - if you need more info, email me.

Bruce Howells,  beh@pogo.ai.mit.edu   (formerly beh@bu.edu)
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