RE: how to zmodem via telnet?
-----Original Message-----
From: shaul [mailto:shaul@rakefet.debian.org]
Sent: Wednesday, May 13, 1998 12:09 PM
To: Vesa Kaihlavirta
Cc: recipient list not shown; @lists.debian.org@artecon
Subject: Re: how to zmodem via telnet?
++ >
++ > My ISP has lynx, that contains a `use zmodem to download to the
local
++ > terminal'-option.
++ >
++ > I'd like to telnet to my ISP, download a file via lynx, and zmodem
it to my
++ > local terminal. Problem is, when I choose that `use zmodem...', I
only get
++ > the zmodem handshaking line (with *B and lots of zeros).
++ >
++ > So, how do I launch rz?
++
++ Since I always get confused about when to use rz and when to use sz,
I ususaly try both of them. ++ Maybee you should try sz file_name also ?
No need to use sz, the original poster wants to receive the file from
the remote (the system s/he is telnet'd to) to their local system, so
'rz' is correct, to 'receive' the file.
But I am a bit confused, here. Generally, using telnet implies a TCP/IP
network connection, so an ftp to the same remote system to retrieve the
file would also work and would probably be easier.
Generally, to run the receive zmodem program would require you to
'suspend' the telnet (usually, telnet uses a control-] to do this) and
then run the rz command from a subshell, pointed at the same 'device'
the telnet is using. This can work OK if instead of telnet you were
using a standard serial connection with something like 'cu', where you
could reach the serial port as /dev/tty??, but I don't know how you
would make it work over a TCP/IP connection. Many modern terminal
emulation programs can also be configured to detect the 'send Zmodem'
initialization string (the *B... stuff) and automatically invoke the
receive zmodem procedure. For telnent to do this means a change in the
code to support the Zmodem protocol (which has been done, in at least
one case, for a telnet/rlogin program for M$ Windows systems - I don't
remember the actual package offhand, if you need it let me know and I
will search my archives for it).
I hope you find this info useful, though perhaps not exactly helpful, in
this case;-)
---
Bob McGowan
i'm: bob dot mcgowan at artecon dot com
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