From owner-freebsd-stable Sat Dec 29 3:41:57 2001 Delivered-To: freebsd-stable@freebsd.org Received: from raven.robbins.dropbear.id.au (085.c.003.mel.iprimus.net.au [210.50.33.85]) by hub.freebsd.org (Postfix) with ESMTP id B3CFE37B420 for ; Sat, 29 Dec 2001 03:41:53 -0800 (PST) Received: (from tim@localhost) by raven.robbins.dropbear.id.au (8.11.6/8.11.6) id fBTBeg403531 for stable@FreeBSD.ORG; Sat, 29 Dec 2001 22:40:42 +1100 (EST) (envelope-from tim) Date: Sat, 29 Dec 2001 22:40:41 +1100 From: "Tim J. Robbins" To: stable@FreeBSD.ORG Subject: Re: strange behavour of stock ftpd in STABLE: ports exhausion? Message-ID: <20011229224041.A3447@raven.robbins.dropbear.id.au> References: <20011229170326.A98378@svzserv.kemerovo.su> <20011229214112.A3183@raven.robbins.dropbear.id.au> <20011229180057.A2500@svzserv.kemerovo.su> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <20011229180057.A2500@svzserv.kemerovo.su>; from eugen@www.svzserv.kemerovo.su on Sat, Dec 29, 2001 at 06:00:57PM +0700 Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Sat, Dec 29, 2001 at 06:00:57PM +0700, Eugene Grosbein wrote: > Well, this seems to be another DoS possibility, isn't it? With such a low number of ports available in your high port range, yes, but there are 16383 by default, which ought to be more than enough. The range can be made even larger if you choose. Perhaps ftpd could be modified to use SO_REUSEADDR for passive mode to work around this problem if, for some reason, you do need such a small high port range. Tim To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message