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000088_news@watsun.cc.columbia.edu _Tue May 25 09:22:40 1999.msg
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Subject: Re: kermit process hangs around after terminal disconnect
Date: 25 May 1999 13:19:23 GMT
Organization: Columbia University
Message-ID: <7ie80r$qsl$1@newsmaster.cc.columbia.edu>
To: kermit.misc@watsun.cc.columbia.edu
In article <7icq4s$qqk$1@nnrp1.deja.com>,
Mr. Scott <scott_davis@my-dejanews.com> wrote:
: I have observed recently that if my network connection through which I
: am connected to my UNIX host (via telnet) goes down, my kermit session
: hangs around and must be killed when I log back on; that is, by hunting
: it down with ps.
:
You mean, your kermit sessions on the UNIX host to which you have telnetted?
: Any suggestions on how to make kermit die as well.
:
As well as what? Do the other process in the same process tree die, and
Kermit is the only one that doesn't? Or are they all still hanging around?
In the latter case, it is a well-known property of TCP/IP that broken
connections are sometimes not detected until hours after the fact. For
example if I make a Telnet connection from a PC to a UNIX server and then
power off the PC, the UNIX login and process tree will not notice until
several hours later. (Remember that TCP/IP was originally designed for
military use, for survivability in a nuclear war, etc.)
: It seems that other people are experiencing the same thing and as
: these "detached" processes build up they lock us out of the modems they
: are connected with until someone detects and kills them.
:
On the other hand, if the other processes in the same process tree are
disappearing but Kermit is not, we have a problem. In that case, please
follow up with details: UNIX OS and version, C-Kermit version.
But first, please try C-Kermit 7.0 Beta and see if it exhibits the same
problem:
http://www.columbia.edu/kermit/ck70.html
If so, then contact us at kermit-support@columbia.edu.
- Frank