From owner-freebsd-questions@freebsd.org Wed Apr 5 18:39:14 2017 Return-Path: Delivered-To: freebsd-questions@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 60BB1D30277 for ; Wed, 5 Apr 2017 18:39:14 +0000 (UTC) (envelope-from byrnejb@harte-lyne.ca) Received: from inet08.hamilton.harte-lyne.ca (inet08.hamilton.harte-lyne.ca [216.185.71.28]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client CN "inet08.hamilton.harte-lyne.ca", Issuer "CA_HLL_ISSUER_2016" (not verified)) by mx1.freebsd.org (Postfix) with ESMTPS id 33D15BC9 for ; Wed, 5 Apr 2017 18:39:13 +0000 (UTC) (envelope-from byrnejb@harte-lyne.ca) Received: from localhost (localhost [127.0.0.1]) by inet08.hamilton.harte-lyne.ca (Postfix) with ESMTP id 9A0B861366; Wed, 5 Apr 2017 14:39:11 -0400 (EDT) X-Virus-Scanned: amavisd-new at harte-lyne.ca Received: from inet08.hamilton.harte-lyne.ca ([127.0.0.1]) by localhost (inet08.hamilton.harte-lyne.ca [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JMIQb0tEXohd; Wed, 5 Apr 2017 14:38:59 -0400 (EDT) Received: from webmail.harte-lyne.ca (inet04.hamilton.harte-lyne.ca [216.185.71.24]) (using TLSv1 with cipher ECDHE-RSA-AES256-SHA (256/256 bits)) (Client did not present a certificate) by inet08.hamilton.harte-lyne.ca (Postfix) with ESMTPSA id EAD67604FE; Wed, 5 Apr 2017 14:38:58 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=harte-lyne.ca; s=dkim_hll; t=1491417539; bh=WFfp4wMsGEfV7QjeLzWTn+nHSBrx82S2iQW8B9rB/Y0=; h=In-Reply-To:References:Date:Subject:From:To:Cc:Reply-To; b=EJ/6ZuP0jOcWbdIrjDEExKTRcyoyP+NDSxCxKCZciAQzutIQkJ8NR0bT5aP3peicW foG/g8WsU4r2WViQWJ3o55Lk1Gf0jWs6bKuvRxiV5VBaJbCUv2gN7HQDBcaEWJ35zu b4F/qa+YmliV+mb5tvgp+2tcohMZwMkWXFC/1D4Ix4bab3O12vCfDa4LgpLPtU1THc oXoknc4pnV9om7zv7z3UOO57PLg+Ih2QIONpCCLxhWSeqcnYntkzZ4d+FfqT/1p0Gx yiBDVRSuNTZXxgtfsbpJPwg3oGFNFbyYF9fDwurvGgCVHaEaQPHviRlCdeqvDo6oIq TdHXSh19wtQKg== Received: from 216.185.71.44 (SquirrelMail authenticated user byrnejb_hll) by webmail.harte-lyne.ca with HTTP; Wed, 5 Apr 2017 14:38:59 -0400 Message-ID: In-Reply-To: <58E50AC2.7010909@gmail.com> References: <7f49f81e25d0eb05aad1af66df49c525.squirrel@webmail.harte-lyne.ca> <20170331204517.f30e0f3b.freebsd@edvax.de> <58E50AC2.7010909@gmail.com> Date: Wed, 5 Apr 2017 14:38:59 -0400 Subject: Re: X11 and ezjails From: "James B. Byrne" To: "Ernie Luzar" Cc: freebsd-questions@freebsd.org Reply-To: byrnejb@harte-lyne.ca User-Agent: SquirrelMail/1.4.22-4.el6 MIME-Version: 1.0 Content-Type: text/plain;charset=iso-8859-1 Content-Transfer-Encoding: 8bit X-Priority: 3 (Normal) Importance: Normal X-BeenThere: freebsd-questions@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: User questions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 05 Apr 2017 18:39:14 -0000 On Wed, April 5, 2017 11:18, Ernie Luzar wrote: >> >> > This is the problem > E233: cannot open display > > gvim will not work if run in a jail. gvim uses x11 and x11 needs > kernel access to talk to the x11 display. Jails are designed on > purpose to deny kernel access to secure the host system from > attack. This is why you can never get a desktop to run in a jail. > The other authentication error messages are bogus and can be > ignored as misleading. > > This is also why gvin works when run on the host system. > > The bottom line here is that what your trying to run in a jail will > NEVER work. Ezjail has no baring on this problem, its a design feature > of jsil(8). > Thank you very much. That saves me from much futile effort. Since all of the files used by a jail lie under /usr/jails// I can just edit the appropriate files directly from the host instead. -- *** e-Mail is NOT a SECURE channel *** Do NOT transmit sensitive data via e-Mail Do NOT open attachments nor follow links sent by e-Mail James B. Byrne mailto:ByrneJB@Harte-Lyne.ca Harte & Lyne Limited http://www.harte-lyne.ca 9 Brockley Drive vox: +1 905 561 1241 Hamilton, Ontario fax: +1 905 561 0757 Canada L8E 3C3