*BSD News Article 8202


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From: ldh@svl.cdc.com (Lawrence D. Hare)
Newsgroups: comp.unix.bsd
Subject: Connection comes up halfway? Why??
Message-ID: <49871@shamash.cdc.com>
Date: 24 Nov 92 00:37:22 GMT
Sender: usenet@shamash.cdc.com
Organization: Control Data Systems
Lines: 30
X-UserAgent: Nuntius v1.1.1d9
X-XXMessage-ID: <A736B92E2E010456@ethelred.svl.cdc.com>
X-XXDate: Mon, 23 Nov 92 16:37:02 GMT

This one is driving me nuts.. If anyone has any idea as to what is going
on I would be really happy. This is the set up.

A Mac application that talks to a specific server on a variety of Unix
platforms. It works fine on everything. Part of this application's
function is to perform file transfers, it uses ftp. This works on ALL
configurations except ONE! What happens on this one is as follows:

The application is connected and happy. It wants to perform a file
transfer so it establishes a connection to the FTP well-known-port using
MacTCP. The connection is created and I go for an ActiveOpen. This
returns mac error -23015 which, translated, means: The connection came up
halfway and then failed.

Why why why WHY!!!!!!!!! If I run other mac applications that use ftp
protocols it works all right. Is there some negotiation going on between
the TCP peers that is failing? Is there something at the UNIX end? Is
there something I should tell someone?

Aaaaaarrrrrgh.

I am posting this to comp.sys.mac.comm, comp.unix.programmer,
comp.unix.admin and comp.unix.bsd. Any and all help is greatly
appreciated.

Thanks
--
Lawrence D. Hare       Control Data - Silicon Valley Operations
Consultant             Voice: (408) 496 4339 - C/N [234] 4339
ldh@svl.cdc.com        Mail: SVLa60  FAX: (408) 496-4106