From: "Konstantin A. Lepikhov" <lakostis@anti-leasure.ru> To: community@altlinux.ru Subject: [Comm] Re: iptables, port 0 и Stealth (blocked ports, REJECT) Date: Sun, 27 Mar 2005 20:06:34 +0400 Message-ID: <20050327160634.GA3615@lks.home> (raw) In-Reply-To: <op.sn89yfupglg102@post.cnt.ru> 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
next prev parent reply other threads:[~2005-03-27 16:06 UTC|newest] Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top 2005-03-26 17:38 [Comm] " Владимир Гусев 2005-03-27 14:05 ` Владимир Гусев 2005-03-27 16:06 ` Konstantin A. Lepikhov [this message] 2005-03-27 16:35 ` [Comm] " Владимир Гусев 2005-03-27 16:59 ` Konstantin A. Lepikhov 2005-03-27 17:33 ` Владимир Гусев 2005-03-27 17:26 ` Michael Shigorin 2005-03-28 7:41 ` Владимир Гусев 2005-03-28 7:56 ` [Comm] FPROFTPD Наумкин Сергей 2005-03-28 9:58 ` Genix 2005-03-28 10:02 ` Alexey I. Froloff 2005-03-28 11:42 ` [Comm] Re: iptables, port 0 и Stealth (blocked ports, REJECT) Владимир Гусев 2005-03-28 19:34 ` Владимир Гусев 2005-03-28 13:20 ` Владимир Гусев
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