From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (qmail 5800 invoked by alias); 11 Dec 2014 19:14:24 -0000 Mailing-List: contact cygwin-xfree-help@cygwin.com; run by ezmlm Precedence: bulk List-Id: List-Subscribe: List-Archive: List-Post: List-Help: , Sender: cygwin-xfree-owner@cygwin.com Reply-To: cygwin-xfree@cygwin.com Mail-Followup-To: cygwin-xfree@cygwin.com Received: (qmail 5785 invoked by uid 89); 11 Dec 2014 19:14:22 -0000 Authentication-Results: sourceware.org; auth=none X-Virus-Found: No X-Spam-SWARE-Status: No, score=-1.7 required=5.0 tests=AWL,BAYES_00,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.2 X-HELO: out3-smtp.messagingengine.com Received: from out3-smtp.messagingengine.com (HELO out3-smtp.messagingengine.com) (66.111.4.27) by sourceware.org (qpsmtpd/0.93/v0.84-503-g423c35a) with (AES256-GCM-SHA384 encrypted) ESMTPS; Thu, 11 Dec 2014 19:14:20 +0000 Received: from compute3.internal (compute3.nyi.internal [10.202.2.43]) by mailout.nyi.internal (Postfix) with ESMTP id D044E2083B for ; Thu, 11 Dec 2014 14:14:18 -0500 (EST) Received: from frontend1 ([10.202.2.160]) by compute3.internal (MEProxy); Thu, 11 Dec 2014 14:14:18 -0500 Received: from [192.168.1.102] (unknown [86.139.177.174]) by mail.messagingengine.com (Postfix) with ESMTPA id 1AA2AC00281; Thu, 11 Dec 2014 14:14:17 -0500 (EST) Message-ID: <5489ED06.5040606@dronecode.org.uk> Date: Thu, 11 Dec 2014 19:14:00 -0000 From: Jon TURNEY Reply-To: cygwin-xfree@cygwin.com User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:31.0) Gecko/20100101 Thunderbird/31.3.0 MIME-Version: 1.0 To: cygwin-xfree@cygwin.com CC: paxguy@yahoo.com Subject: Re: remote xterm's can't open display after upgrade References: <1716391920.60507.1418322712630.JavaMail.yahoo@jws10765.mail.gq1.yahoo.com> In-Reply-To: <1716391920.60507.1418322712630.JavaMail.yahoo@jws10765.mail.gq1.yahoo.com> Content-Type: text/plain; charset=utf-8; format=flowed Content-Transfer-Encoding: 7bit X-SW-Source: 2014-12/txt/msg00024.txt.bz2 On 11/12/2014 18:31, Don Webster wrote: > I needed to upgrade gs to gs 9.15, so I ran setup yesterday. It > wanted to update a whole bunch of stuff, including X. OK, fine, I > hadn't updated cygwin in quite a while, and I had other stuff to do. > > After the upgrade, I can't display remote xterms. OK, my old X > shortcut didn't work, but I found "XWin Server" and pinned it to my > task bar. I launch that and I have the X server running, and a local > xterm pops up. I ssh into my linux server, and run my xterm, and get > "can't open display". I did these steps. > > - turned off my Windows Firewall (I am on a safe, local network). - > launched XWin Server. > > In the xterm that popped up: > dcw@dcwdt02 ~ > $ xhost + > access control disabled, clients can connect from any host > > dcw@dcwdt02 ~ > $ ssh centos6 > Last login: Wed Dec 10 16:31:16 2014 from dcwdt02 > centos6% setenv DISPLAY 10.11.22.33:0.0 # I use tcsh > centos6% xterm > xterm Xt error: Can't open display: 10.11.22.33:0.0 > centos6% > > Is there something obvious? https://cygwin.com/ml/cygwin-xfree/2014-11/msg00029.html The relevant part is "startx and startxwin now pass '-nolisten tcp' to the server by default, which increases security in the X server by not opening a port to TCP connections. The '-listen' flag can be passed as a server argument to override this." Your choices are to add the '-listen' flag to the startxwin invocation, or (better) to use 'ssh -Y' and not explicitly set DISPLAY (See http://x.cygwin.com/docs/ug/using-remote-apps.html#using-remote-apps-ssh) -- Jon TURNEY Volunteer Cygwin/X X Server maintainer -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://x.cygwin.com/docs/ FAQ: http://x.cygwin.com/docs/faq/