X-Recipient: archive-cygwin AT delorie DOT com X-Original-To: cygwin AT cygwin DOT com Delivered-To: cygwin AT cygwin DOT com DMARC-Filter: OpenDMARC Filter v1.4.1 sourceware.org 14F633857C50 Authentication-Results: sourceware.org; dmarc=pass (p=none dis=none) header.from=yandex.ru Authentication-Results: sourceware.org; spf=pass smtp.mailfrom=yandex.ru X-Yandex-Fwd: 2 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=yandex.ru; s=mail; t=1648732801; bh=Q8QRIQaSRFf37/6RC5FDVoNSPEeOrG+jtf49Au893cM=; h=In-Reply-To:Subject:To:From:Message-ID:References:Date:Reply-To; b=gy8REDJ/k24LjSNKimSJ/2YU8Xyot1ZB2gWQJASOgadYPMx0RT3bcMUiKTxhNy0W1 4p2soW3P++91RBJX9vYysam8w4XiWPHYJQ5MKC9wY0s+M9mkTqGaC1mxuH/RbX3QI6 GeBNk5+b5vJ8mUfV6AGGPpp+5TniB49UJWXUDzD0= Authentication-Results: sas1-de9e0dd89469.qloud-c.yandex.net; dkim=pass header.i=@yandex.ru Date: Thu, 31 Mar 2022 16:18:39 +0300 From: Andrey Repin X-Mailer: The Bat! (v9.3.4) Professional Message-ID: <114169113.20220331161839@yandex.ru> To: Greco Giovanni , cygwin AT cygwin DOT com Subject: Re: SSH connection from Linux to Windows by CYGSSHD: port 22 In-Reply-To: References: MIME-Version: 1.0 X-Spam-Status: No, score=1.3 required=5.0 tests=BAYES_00, DKIM_SIGNED, DKIM_VALID, DKIM_VALID_AU, DKIM_VALID_EF, FREEMAIL_FROM, KAM_NUMSUBJECT, KAM_THEBAT, NICE_REPLY_A, RCVD_IN_MSPIKE_H4, RCVD_IN_MSPIKE_WL, SPF_HELO_NONE, SPF_PASS, TXREP, T_SCC_BODY_TEXT_LINE, XM_LIGHT_HEAVY autolearn=no autolearn_force=no version=3.4.4 X-Spam-Level: * X-Spam-Checker-Version: SpamAssassin 3.4.4 (2020-01-24) on server2.sourceware.org X-BeenThere: cygwin AT cygwin DOT com X-Mailman-Version: 2.1.29 Precedence: list List-Id: General Cygwin discussions and problem reports List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: cygwin AT cygwin DOT com Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: cygwin-bounces+archive-cygwin=delorie DOT com AT cygwin DOT com Sender: "Cygwin" Greetings, Greco Giovanni! > must port 22 on Windows server be enabled in a bidirectional way to > establish a connection with RSA key exchange? > I have a Linux server on a vlan and a Windows server on another vlan, those > vlans are connected thru a firewall, where port 22 is enabled from Linux > server to Windows server unidirectionally. > Connection with user and password works, but not with RSA key exchange: is > the problem located on port 22 unidirectional enabling? No, it is most likely because you are connecting to Microsoft provided OpenSSH. `netstat -aon` and `ps ax` will tell you more. -- With best regards, Andrey Repin Thursday, March 31, 2022 16:16:07 Sorry for my terrible english... -- Problem reports: https://cygwin.com/problems.html FAQ: https://cygwin.com/faq/ Documentation: https://cygwin.com/docs.html Unsubscribe info: https://cygwin.com/ml/#unsubscribe-simple