From owner-freebsd-isp Fri Sep 27 11:18:21 2002 Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.FreeBSD.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id A80E937B401 for ; Fri, 27 Sep 2002 11:18:20 -0700 (PDT) Received: from mercury.unimatrixzero.com (206-230-005-050.wintek.com [206.230.5.50]) by mx1.FreeBSD.org (Postfix) with ESMTP id D854643E65 for ; Fri, 27 Sep 2002 11:18:19 -0700 (PDT) (envelope-from fbsd@unimatrixzero.com) Received: from mercury.unimatrixzero.com (localhost [127.0.0.1]) by mercury.unimatrixzero.com (8.12.6/8.12.6/UniMatrixZero) with ESMTP id g8RIIBXX002313 for ; Fri, 27 Sep 2002 13:18:11 -0500 (EST) (envelope-from fbsd@mercury.unimatrixzero.com) Received: (from fbsd@localhost) by mercury.unimatrixzero.com (8.12.6/8.12.6/Submit) id g8RIIBBU002312 for isp@FreeBSD.ORG; Fri, 27 Sep 2002 13:18:11 -0500 (EST) (envelope-from fbsd) From: FreeBSD Message-Id: <200209271818.g8RIIBBU002312@mercury.unimatrixzero.com> Subject: open smtp relays and http proxies To: isp@FreeBSD.ORG Date: Fri, 27 Sep 2002 13:18:11 -0500 (EST) X-Mailer: ELM [version 2.4ME+ PL99b (25)] MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Type: text/plain; charset=US-ASCII Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.org I'm looking software that will allow us to scan our own netblocks for open smtp relays and open http and socks proxies. The spammers are very aggressive about abusing these systems and we want to check to make sure our users aren't running such vulnerable systems. I know rlytest in the ports collection checks one host for smtp relaying, but I'd like to scan entire netblocks at once. What else can be done to keep user's systems safe from spammers? To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message