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000403_news@columbia.edu _Sun Jan 2 01:52:33 2000.msg
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From: not-2-disclose@the.net
Subject: MS-DOS Kermit, more capabalities
Message-ID: <010200013343not-2-disclose@the.net>
Date: Sun, 02 Jan 2000 06:41:32 GMT
Organization: Sympatico
To: kermit.misc@columbia.edu
Hi Frank,
Hi everybody,
MS> Most unfortunately, `Kermit' doesn't include the `ZMoDem' file
MS> transfer protocol (with control-character escaping & all)...
FDC> Kermit protocol is is a fast as Zmodem if both Kermit partners
FDC> support a fairly decent implementation of it. Most non-Kermit
FDC> -Project Kermit implementations do not. Of course a 4.77MHz CPU
FDC> would also be a bottleneck but that's true for Zmodem too.
The differences seem to be enhanced in some interresting way, in extreme
testing conditions... Many months ago, i tried a number of things on a
"legacy" (old) `GridCase II' 8088 4,77 Mhz PC (equiped with only 512 Kb
~RAM~ memory and one 3.5"/720 Kb diskette drive, a 8250-like ~UART~ and
an external MoDem which reported a computer-MoDem "CONNECT" rate of 9K6
bps. At the time, the only working solution which i found was to load a
packet-driver called `EPPPd.EXE v0.6 Beta' (from the `DOSPPPd' package);
then to load `Kermit' on top of that - DOS was v3.30, for lightliness...
At the time, i got .ZIP-file DownLoads of about 431 cps (D/L to a remote
~RAMDisk~ via `InterLink' - i.e. no writes to a slow mechanical device).
I found no equivalent `ZMoDem'-equiped terminal emulation program that
would have been able of doing the same, at the time, and i doubt it will
ever happen. Since 431 cps as a bare minimum may seem to be a promising
prospect when one considers using a somewhat better hardware (i.e. 16550
~UART~, 640 Kb ~RAM~ memory), euh... i must confess i'd be very curious
to see "de facto" how fast a "fairly decent implementation" of `ZMoDem'
would get. I know too well how `Kermit's DIRECT packet-driver interface
can help, i wish i had the same for doing `ZMoDem' transfers. Since it
is often said the later should run as fast as `Kermit', i suppose that
it might attain a reasonable-enough rate, enough to be able to get/send
message packets to/from BBSes! My question is this: since `Kermit' is
most probably amongst THE LAST PROGRAMS OF ITS KIND to have remained in
*ACTIVE DEVELOPMENT*, lately; since the latest `Win 9x' version already
integrates the `ZMoDem' file transfer protocol, euh... would you happen
to be aware of any project related to the development of a future MS-DOS
`Kermit' version that will integrate the `ZMoDem' protocol as well? :^)
[...]
MS> I discovered that i could access my ~POP3~ server on ~IP~ port #25
MS> but `Kermit' is the only program not to allow me such access...
FDC> MS-DOS Kermit blocks connections to port 25 to prevent mail
FDC> spoofing.
Oups! Actually, my notes tell me this would be my ~SMTP~ server... %*)
I may have to check about ~IP~ port #110 and ~POP~ server. %*o Anyway.
Mail "spoofing"??? Hummm... Seen from here, it sounds almost as bad as
"Spaming". I'm afraid i don't know what mail "spoofing" is as of yet...
One thing i know is that i can read/write ~E-Mails~ with `{Commo}' so if
that's all a mail "spoofer" requires, then, euh... i guess the bad guys
are still free to operate and me i still have to use a separate program
just for the ~E-Mail~ part. Can i be "spoofing" without knowing?!? 8-o
[...]
MS> In the same way that i found ~TelNet~ can be made usefull for doing
MS> a lot of InterNet stuff, i have written a small set of `Kermit'
MS> scripts to read the ~News Groups~ "On-Line". The problem here is
MS> that my postings are reformated somehow... ...i already found that
MS> some characters pose a problem when found at the end of the line...
FDC> Dash at the end of a line means the line is continued.
Yes, i had that one figured out but what if i need to write a line in my
article which does end with an hyphen indeed?! Isn't there any function
for sending a one-byte character which can be 1 out of the 256 possible
values?... Something like "OutPut$ \m(_DecValue)" where a user variable
would determine what character is going to be output, directly, with no
interference?... 8-o I tried "Transmit" but it won't do and "OutPut"
refuses to send some characters if they are not expressed directly, in
decimal, from the script's command-line - no variable works. %-o Also,
i can't have paragraph idents with the actual setup and i don't know how
or why they get striped in the 1st place... Finally, there's this "TOO
MANY ACTIVE TAKE FILES AND MACROS" thing; i think i must be terminating
macros incorrectly but i fail to see how. %-) A hint, anybody?... 8*)
Please! 8-o Help!... ;-)
[...]
Thanks very much Frank for the attention you paid reading me. :) I met
`Kermit', for the first time, around 1991 when i came to buy my Hewlett
Packard `HP-48' calculator and that many years later i can see why they
chose that particular file transfer protocol! Heck, i sometimes attain
a rate of almost 4K cps with my 386-16 Mhz PC in a ~TelNet~ session and
i never get better than about 3K5 cps with `ZMoDem', in a "DialUp" one!
Who would have known! I couldn't suspect i'd be using the same `Kermit'
terminal/protocol (after some up-grades passed), when i'd finally start
using it in ~TelNet~ sessions, years later! Talk about longevity! 8-)
Long live `Kermit'!!!
:-)
As i witness that kind of *performance*, i wish `ZMoDem' were included
into `MS-Kermit' because that one, surely, would be made equally great
as well! Isn't there any chance we can see this happen in the future?
:^o
Mmmm?...
8^)
Anyway, i wish you well! Have fun, have a very nice New-Year time! :-)
Michel Samson