From owner-freebsd-stable Sun May 28 13: 2:47 2000 Delivered-To: freebsd-stable@freebsd.org Received: from smtp6.mindspring.com (smtp6.mindspring.com [207.69.200.110]) by hub.freebsd.org (Postfix) with ESMTP id E68F237B539 for ; Sun, 28 May 2000 13:02:40 -0700 (PDT) (envelope-from stuyman@confusion.net) Received: from confusion.net (user-2iveao1.dialup.mindspring.com [165.247.43.1]) by smtp6.mindspring.com (8.9.3/8.8.5) with ESMTP id QAA07033; Sun, 28 May 2000 16:02:31 -0400 (EDT) Message-ID: <39317AEC.EDC7E1EA@confusion.net> Date: Sun, 28 May 2000 16:00:44 -0400 From: Laurence Berland Organization: B.R.A.T.T. X-Mailer: Mozilla 4.5 [en] (Win95; U) X-Accept-Language: en MIME-Version: 1.0 To: "Mark S. Reichman" Cc: Mike , freebsd-stable@FreeBSD.ORG Subject: Re: FTP_PASSIVE_MODE=YES ???? References: <392F2A57.4B2C52EA@twcny.rr.com> <392FCE92.3F7A809@rockatronic.com> <392FD34A.7DD13055@twcny.rr.com> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Passive is more likely to work than active. Under FTP, you connect to the listening server for the control connection. Then, when you send a PORT command you tell the server where to connect for the data connection. Then you listen and the server connects. Under passive mode, you send a PASV and then the server listens and tells you where to connect for the data connection. This will work in more situations, because often people have a firewall preventing incoming connections but not outgoing, or something like this. You tend not to see the reverse as relevant, since you probably couldn't have opened the control connection under those circumstances. Hope that helps, Laurence "Mark S. Reichman" wrote: > My question is, and this must > be a 4.0 Realease thing, why was it changed to FTP_PASSIVE_MODE=YES > in the login.conf? I must admit I dont entirely understand what passive > mode is, but I have never needed it or used it in all my years of > computing. And > if I'm not crazy, the ftp client in 3.4 FreeBSD and below did not start > up in passive mode by default. Was it a change during the IPV6 mod? Is > this necassary? I preferred the old behavior. > > -- Laurence Berland, Stuyvesant HS Debate <><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><><> Windows 98: n. useless extension to a minor patch release for 32-bit extensions and a graphical shell for a 16-bit patch to an 8-bit operating system originally coded for a 4-bit microprocessor, written by a 2-bit company that can't stand for 1 bit of competition. http://stuy.debate.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message