From owner-freebsd-arch@freebsd.org Tue Oct 20 00:06:44 2015 Return-Path: Delivered-To: freebsd-arch@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 EE9F3A19DF0 for ; Tue, 20 Oct 2015 00:06:44 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from freefall.freebsd.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by mx1.freebsd.org (Postfix) with ESMTP id DC38A14C6; Tue, 20 Oct 2015 00:06:44 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Received: from FreeBSD.org (freefall.freebsd.org [IPv6:2001:1900:2254:206c::16:87]) by freefall.freebsd.org (Postfix) with ESMTP id 6720B1887; Tue, 20 Oct 2015 00:06:44 +0000 (UTC) (envelope-from gjb@FreeBSD.org) Date: Tue, 20 Oct 2015 00:06:42 +0000 From: Glen Barber To: Warner Losh Cc: "freebsd-arch@freebsd.org" Subject: Re: Enabling all available ttys if available console Message-ID: <20151020000642.GB20559@FreeBSD.org> References: <20151019171215.GX15305@FreeBSD.org> <20151019210035.GB15569@FreeBSD.org> MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="4bRzO86E/ozDv8r1" Content-Disposition: inline In-Reply-To: X-Operating-System: FreeBSD 11.0-CURRENT amd64 X-SCUD-Definition: Sudden Completely Unexpected Dataloss X-SULE-Definition: Sudden Unexpected Learning Event X-PEKBAC-Definition: Problem Exists, Keyboard Between Admin/Computer User-Agent: Mutt/1.5.24 (2015-08-30) X-BeenThere: freebsd-arch@freebsd.org X-Mailman-Version: 2.1.20 Precedence: list List-Id: Discussion related to FreeBSD architecture List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 20 Oct 2015 00:06:45 -0000 --4bRzO86E/ozDv8r1 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Mon, Oct 19, 2015 at 05:09:45PM -0600, Warner Losh wrote: > On Mon, Oct 19, 2015 at 3:00 PM, Glen Barber wrote: >=20 > > On Mon, Oct 19, 2015 at 05:12:15PM +0000, Glen Barber wrote: > > > For several months now, I have been contemplating enabling all active > > > ttys on the system by 1) changing the defaults from std.9600 to 3wire, > > > and 2) setting ttyu{0,1,2,3} from 'off' to 'onifconsole'. > > > > > > The only drawback to doing this that I can think of is it could open > > > a potential attack vector, however this would require physical access= to > > > the system. > > > > > > The benefit to doing this is the system would be accessible via ttys > > > other than ttyu0 by default, which unless there is someone with local > > > access to the system, is painful for administrators to gain console > > > access remotely by default. > > > > > > Are there objections to changing the default, or have I missed someth= ing > > > larger in this proposed change? > > > > > > > Based on the replies so far, unless there are no objections by tomorrow, > > I'll commit the change. > > > > Thanks to everyone who replied. >=20 >=20 > Any chance we can move the tip entries from 9600 to 115200 too for the > other direction? >=20 I don't see why not. Glen --4bRzO86E/ozDv8r1 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- Version: GnuPG v2 iQIcBAEBCAAGBQJWJYWSAAoJEAMUWKVHj+KThyEP/23ChFl5b4qWttY+vluCRQks qHBBMgL9hD59/C0pTRvfVEDhsrghmHy8Ng7lDSWVyfcQN24zgvmMk1rTvuV+KZd0 wMhw9kuTdzM0vnYZyn6ScFXERKc9Dv2d2hw9wLLkrvBbBSAhIdStHPcGzaKqI7m5 Nx2xeiWuB26Xfu5UYa7yY7PWSKh1nNo6tz2CcjWb+w0mEG7kTua32afQak0g0Nz9 eOCzHSEHGYtWU6y84t0vbqXDtnRItzJOkHASRGMr7eCCuTmqnvz61eRVkpfIQWy3 NB0MXXV3eGbCSKi2/cRgnE0q8Ry2NtSEz/BzFv5d4xXcei/J98zDtXEn/tfhorHE WejCzzBQvQTtdwdaLB4ZRHA4Ra5s1NFYX/E4P0KssoSrDNR+aOLFQR4YV+NMbCN7 Fiw1+QxnYZj/uLqOtq2pkSnEhMcUAYYeGEZyU80PZJJDhThQs42PVxOb8v1U2fKb 3uyHNsKGsfLLq1ud76YggKsHd/0LRPukMnq8RCUi/5sE9CBOWvKt4wBbkVE/xbT7 EWjndeAd4933xJS20RCEAnNyxsvOnBZ+WjZjH2ufLB+jT2KIVfjbBpgoYEGN6e7j PCD5ePSzrkdaKNqIOQb7l6GjEDfblcFplsnKc3j8TTlAqJk3Ve4BtwEoPXoys0HE QDeL0bYWZbE4GS8cn+UE =wVaI -----END PGP SIGNATURE----- --4bRzO86E/ozDv8r1--