From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Sun, 27 Mar 2005 20:06:34 +0400 From: "Konstantin A. Lepikhov" To: community@altlinux.ru Message-ID: <20050327160634.GA3615@lks.home> Mail-Followup-To: community@altlinux.ru References: Mime-Version: 1.0 Content-Type: text/plain; charset=koi8-r Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: X-Operation-System: ALT Linux Sisyphus (20050324) 2.4.29-ll-up-alt1 User-Agent: Mutt/1.5.8+cvs20050213i X-AV-Checked: ClamAV using ClamSMTP Subject: [Comm] Re: iptables, port 0 =?koi8-r?b?ySBTdGVhbHRo?= (blocked ports, REJECT) X-BeenThere: community@altlinux.ru X-Mailman-Version: 2.1.5 Precedence: list Reply-To: community@altlinux.ru List-Id: Mailing list for ALT Linux users List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 27 Mar 2005 16:06:44 -0000 Archived-At: List-Archive: List-Post: Hi Владимир! Saturday 26, at 08:38:29 PM you wrote: > Еще один stealth-тест: > GRC Port Authority Report created on UTC: 2005-03-26 at 16:30:26 > > Results from scan of ports: 0, 21-23, 25, 79, 80, 110, 113, > 119, 135, 139, 143, 389, 443, 445, > 1002, 1024-1030, 1720, 5000 > > 0 Ports Open > 1 Ports Closed > 25 Ports Stealth > --------------------- > 26 Ports Tested > > NO PORTS were found to be OPEN. > > The port found to be CLOSED was: 0 > > Other than what is listed above, all ports are STEALTH. > > TruStealth: FAILED - NOT all tested ports were STEALTH, > - Received one or more unsolicited packets, > - NO Ping reply (ICMP Echo) was received. > > После всего этого у меня возникли следующие вопросы > > 1. Что за порт 0 и как его закрывать? netstat -vatwun ? > 2. Нужно ли добиваться, чтобы по таким онлайн-тестам все порты от 0 до > 1055 были бы BLOCKED (Stealth) (в случае теста Shields UP все порты на > диаграмме в зеленом цвете)? не факт, например, если нужен доступ извне к какой-нибудь службе, то зачем ее закрывать. > 3. Насколько жизнеспособна (недырява) таблица filter в моем исполнении для > простейшего шлюза с одной задачей - доступ в интернет для локальной сети. Лучше поставьте firehol и не мучайтесь. PS Например, чего у меня показало после тестирования: Results from scan of ports: 0-1055 1 Ports Open 1 Ports Closed 1054 Ports Stealth --------------------- 1056 Ports Tested The port found to be OPEN was: 22 The port found to be CLOSED was: 113 Other than what is listed above, all ports are STEALTH. TruStealth: FAILED - NOT all tested ports were STEALTH, - NO unsolicited packets were received, - NO Ping reply (ICMP Echo) was received. -- WBR, Konstantin chat with ==>ICQ: 109916175 Lepikhov, speak to ==>JID: lakostis@jabber.org aka L.A. Kostis write to ==>mailto:lakostis@pisem.net.nospam ...The information is like the bank... (c) EC8OR