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000220_nospam@dontbother.luser_Tue Aug 12 14:29:28 EDT 2003.msg
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Article: 14458 of comp.protocols.kermit.misc
Path: newsmaster.cc.columbia.edu!newsfeed.nyu.edu!news.algonet.se!algonet!news.tele.dk!news.tele.dk!small.news.tele.dk!npeer.de.kpn-eurorings.net!news-out.nuthinbutnews.com!propagator2-sterling!news-in-sterling.nuthinbutnews.com!cyclone1.gnilink.net!spamkiller2.gnilink.net!nwrdny03.gnilink.net.POSTED!53ab2750!not-for-mail
From: marty <nospam@dontbother.luser>
Subject: Re: Telnet zmodem
Newsgroups: comp.protocols.kermit.misc
References: <WpYZa.2154$u%2.1308@nwrdny02.gnilink.net> <bhapf2$d0a$1@watsol.cc.columbia.edu>
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Date: Tue, 12 Aug 2003 17:26:20 GMT
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Xref: newsmaster.cc.columbia.edu comp.protocols.kermit.misc:14458
Frank da Cruz wrote:
> In article <WpYZa.2154$u%2.1308@nwrdny02.gnilink.net>,
> marty <nospam@dontbother.luser> wrote:
> : Using: C-Kermit 8.0.209, 17 Mar 2003, for Linux(RH 8.0)
> :
> : I have an account that allows me to connect via telnet to a SunOS 5.7
> : server. Login presents me with the user menu, one of the choices is to
> : my
> : 'Personal files' section. Upload/Download features are via xmodem or
> : zmodem. In the past on the windows side, I've used Hilgreave's
> : HyperTerminal to do uploading/downloading to my 'Personal files'
> : section.
> :
> : But know I'm using RedHat... & C-Kermit 8.0.209, 17 Mar 2003, for Linux.
> : As powerful as C-Kermit is I figure it should allow me to do the same
> : as I did on the windows side but...
> :
> : From a C-Kermit prompt I telnet to and log onto the server. The
> : procedure for downloading via a telnet connection is to choose the
> : download option
> : and name the file one wishes to download. Chose xmodem or zmodem
> : (C-Kermit: set protocol zmodem) and the process begins...
> :
> "set protocol zmodem" invokes an external protocol, whatever Red Hat
> happens to have installed as "rz" and "sz".
Yes I was aware of that fact, thanks.
>
> : ================================
> : Receiving: pine-error_addressbooks.png
> : Retry 0: Bad CRC
> : ...
> : Bytes received: 0/ 30846 BPS:0 ETA 00:00 Retry 0: Bad CRC
> : ...
> : Retry 0: Bad CRC
> :
> : rz: pine-error_addressbooks.png removed.
> : ================================
> :
> : The process finishes with me being dumped back to the C-Kermit prompt.
> : Status: FAILURE
> :
> So "rz" failed.
Actually, I wrongly stated that status reported 'FAILURE'. In fact after
all of these failed transfers, typing 'Status' at the C-Kermit prompt
reports: 'SUCCESS'
>
> : Uploads are just as unsuccessful. I start with a login to a telnet
> : session
> : from the C-Kermit prompt. Initiate an upload using zmodem (again
> : C-Kermit is 'set protocol zmodem', do a Ctrl\c back to C-Kermit prompt
> : issue the following...
> :
> : The file name shows in the list of files in my 'Personal file' on the
> : host, but of course the file is 0 KB.
> :
> : I've only been using linux for a year or so now and C-Kermit for a few
> : days so any help or suggestions would be much appreciated.
> :
> Some knowledge of serial communication is required. The C-Kermit book has
> chapters and chapters explaining all this.
Ok, so you would like me to buy your book! Maybe I will, but in the
meantime your help is greatly appreciated.
> Very briefly:
>
> . We know the interface speed is right because you can see the
> remote text.
>
> . Probably the parity is right ("none") because the host would never
> pick Xmodem or Zmodem as protocols if non-none parity were being
> used.
Yes parity is set to 'none'
>
> . Therefore the most likely cause of failure is inadequate flow
> control.
>
> You have to make sure an effective form of flow control is established
> between every pair of devices along the communication path, e.g. local
> computer to its modem, modem to modem, remote modem to remote serial
> port. See:
>
> http://www.columbia.edu/kermit/support.html#hints
>
Thanks for the link but one minor detail I failed to mention. My connection
to the remote host is via broadband and the Internet, no modem(s) involved.
I've tried various flow-control settings for both 'tcpip' and 'remote' to
no avail?
> if you need to follow up.
>
> - Frank
Well thanks for your responses. What I may lack in 'knowledge of serial
communication' I will attempt to overcome in bulldog-like determination!
-marty
--
All UNconstructive criticism will be filed in the appropriate receptacle.