From nobody Sun Sep 05 21:24:17 2021 X-Original-To: freebsd-hackers@mlmmj.nyi.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2610:1c1:1:606c::19:1]) by mlmmj.nyi.freebsd.org (Postfix) with ESMTP id 686D217A1783; Sun, 5 Sep 2021 21:24:34 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from hz.grosbein.net (hz.grosbein.net [IPv6:2a01:4f8:c2c:26d8::2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "hz.grosbein.net", Issuer "hz.grosbein.net" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 4H2l0d3m9Yz3Gyf; Sun, 5 Sep 2021 21:24:33 +0000 (UTC) (envelope-from eugen@grosbein.net) Received: from eg.sd.rdtc.ru (root@eg.sd.rdtc.ru [62.231.161.221] (may be forged)) by hz.grosbein.net (8.15.2/8.15.2) with ESMTPS id 185LOOdd056163 (version=TLSv1.2 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 5 Sep 2021 21:24:24 GMT (envelope-from eugen@grosbein.net) X-Envelope-From: eugen@grosbein.net X-Envelope-To: freebsd-net@freebsd.org Received: from [10.58.0.10] (dadvw [10.58.0.10]) by eg.sd.rdtc.ru (8.16.1/8.16.1) with ESMTPS id 185LOMOe089689 (version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128 verify=NOT); Mon, 6 Sep 2021 04:24:22 +0700 (+07) (envelope-from eugen@grosbein.net) Subject: Re: TCP connection ignore RST To: Rozhuk Ivan , freebsd-net@freebsd.org, freebsd-hackers@freebsd.org References: <20210904023730.5eddd6fd@rimwks.local> From: Eugene Grosbein Message-ID: <097738e8-f6df-7da8-886a-73212a082c70@grosbein.net> Date: Mon, 6 Sep 2021 04:24:17 +0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 List-Id: Technical discussions relating to FreeBSD List-Archive: https://lists.freebsd.org/archives/freebsd-hackers List-Help: List-Post: List-Subscribe: List-Unsubscribe: Sender: owner-freebsd-hackers@freebsd.org MIME-Version: 1.0 In-Reply-To: <20210904023730.5eddd6fd@rimwks.local> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit X-Spam-Status: No, score=-1.0 required=5.0 tests=ALL_TRUSTED,SHORTCIRCUIT autolearn=disabled version=3.4.2 X-Spam-Report: * -0.0 SHORTCIRCUIT No description available. * -1.0 ALL_TRUSTED Passed through trusted hosts only via SMTP X-Spam-Checker-Version: SpamAssassin 3.4.2 (2018-09-13) on hz.grosbein.net X-Rspamd-Queue-Id: 4H2l0d3m9Yz3Gyf X-Spamd-Bar: -- Authentication-Results: mx1.freebsd.org; dkim=none; dmarc=none; spf=fail (mx1.freebsd.org: domain of eugen@grosbein.net does not designate 2a01:4f8:c2c:26d8::2 as permitted sender) smtp.mailfrom=eugen@grosbein.net X-Spamd-Result: default: False [-2.08 / 15.00]; ARC_NA(0.00)[]; R_SPF_FAIL(1.00)[-all]; FREEFALL_USER(0.00)[eugen]; FROM_HAS_DN(0.00)[]; RCPT_COUNT_THREE(0.00)[3]; TO_DN_SOME(0.00)[]; NEURAL_HAM_LONG(-1.00)[-1.000]; TAGGED_RCPT(0.00)[]; MIME_GOOD(-0.10)[text/plain]; DMARC_NA(0.00)[grosbein.net]; RCVD_COUNT_THREE(0.00)[3]; TO_MATCH_ENVRCPT_SOME(0.00)[]; NEURAL_HAM_SHORT(-0.98)[-0.985]; NEURAL_HAM_MEDIUM(-1.00)[-1.000]; FREEMAIL_TO(0.00)[gmail.com,freebsd.org]; FROM_EQ_ENVFROM(0.00)[]; R_DKIM_NA(0.00)[]; MIME_TRACE(0.00)[0:+]; ASN(0.00)[asn:24940, ipnet:2a01:4f8::/32, country:DE]; RCVD_TLS_ALL(0.00)[]; MID_RHS_MATCH_FROM(0.00)[] X-Spam: Yes X-ThisMailContainsUnwantedMimeParts: N 04.09.2021 6:37, Rozhuk Ivan wrote: > Hi! > > > I have strange case: FreeBSD 12.2 ignore TCP RST from windows host and continue retransmitting packets. > sockstat show that socket connected even after many tcp rst packets received. > > Any ideas how to fix it? First make sure your packet filter does not drop RST packet.