From owner-freebsd-questions@FreeBSD.ORG Sun Aug 8 05:16:06 2004 Return-Path: Delivered-To: freebsd-questions@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 882EC16A4CE for ; Sun, 8 Aug 2004 05:16:06 +0000 (GMT) Received: from heisenberg.zen.co.uk (heisenberg.zen.co.uk [212.23.3.141]) by mx1.FreeBSD.org (Postfix) with ESMTP id 4CB0743D3F for ; Sun, 8 Aug 2004 05:16:01 +0000 (GMT) (envelope-from mgb@orion.org.uk) Received: from [217.155.1.245] (helo=EXCALIBUR) by heisenberg.zen.co.uk with smtp (Exim 4.30) id 1Btg2K-0002GD-8h for questions@FreeBSD.org; Sun, 08 Aug 2004 05:16:00 +0000 From: "Mike Bruce" To: Date: Sun, 8 Aug 2004 06:16:19 +0100 Message-ID: MIME-Version: 1.0 X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook, Build 10.0.2627 Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V6.00.2800.1441 X-Originating-Heisenberg-IP: [217.155.1.245] Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit X-Content-Filtered-By: Mailman/MimeDel 2.1.1 Subject: Hacker Scans - Advice requested X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 08 Aug 2004 05:16:06 -0000 Please can you help me? I am getting increasingly plagued by this message in my security log on my V4 installations of FreeBSD 06:48:53 mail sshd[18617]: Failed password for illegal user admin from 210.3.4.71 port 39741 ssh2 Aug 7 Is there any way that this can be prevented without impairing the services provided by the operating system. Many thanks Mike Bruce