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Date:      Fri, 20 Dec 1996 11:10:02 -0800 (PST)
From:      J Wunsch <j@uriah.heep.sax.de>
To:        freebsd-ports
Subject:   Re: ports/2256: PPP process on port will not close when an NT user has diconnected after a session.
Message-ID:  <199612201910.LAA03627@freefall.freebsd.org>

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The following reply was made to PR ports/2256; it has been noted by GNATS.

From: J Wunsch <j@uriah.heep.sax.de>
To: greg@gcsl.co.uk
Cc: freebsd-gnats-submit@freebsd.org
Subject: Re: ports/2256: PPP process on port will not close when an NT user has diconnected after a session.
Date: Fri, 20 Dec 1996 19:11:32 +0100 (MET)

 As greg@gcsl.co.uk wrote:
 
 > POPEYE is a pop server running several serial ports on PPP. When a 
 > customer dials in from an NT machine to get a PPP connection, after he
 > has finished and signs off, the particular PPP port stays open with the 
 > pppd-x process still running. It has to be killed manually otherwise the
 > next caller is confronted with a security violation and can enter the 
 > system without a login and password. This does not happen with Win95 or 
 > other type of OS dialing in.
 
 Even if the PPP layers aren't correctly closed by POPEYE, your tty
 device or modem seems to be misconfigured.  The modem is support to
 drop the DCD signal when the carrier vanishes, and this should in turn
 send a SIGHUP to the process.  This will eventually terminate the
 process even though the PPP layers haven't been shut down correctly.
 
 (Apparently, your other client's PPP implementations do shut down the
 layers properly, so your PPP volunteerely drops the connection
 itself.)
 
 -- 
 cheers, J"org
 
 joerg_wunsch@uriah.heep.sax.de -- http://www.sax.de/~joerg/ -- NIC: JW11-RIPE
 Never trust an operating system you don't have sources for. ;-)



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