Date: Sun, 28 Aug 2005 11:44:46 +0200 From: Roland Smith <rsmith@xs4all.nl> To: Dmitry Mityugov <dmitry.mityugov@gmail.com> Cc: Tom Norris <tom@trancegeek.net>, freebsd-questions@freebsd.org Subject: Re: A quick question about X11 and securelevels Message-ID: <20050828094446.GA17036@slackbox.xs4all.nl> In-Reply-To: <b7052e1e050828015973762a93@mail.gmail.com> References: <43111AAE.6090402@trancegeek.net> <b7052e1e050828015973762a93@mail.gmail.com>
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--y0ulUmNC+osPPQO6 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Content-Transfer-Encoding: quoted-printable On Sun, Aug 28, 2005 at 12:59:36PM +0400, Dmitry Mityugov wrote: > On 8/28/05, Tom Norris <tom@trancegeek.net> wrote: > > I understand the things like not allowing the system clock to change and > > not allowing formatting of filesystems, but I want to know why you can't > > run x11 when you have a securelevel greater than or equal to one. there > > is no _serious_ reason I wish to know, I'm just curious and google keeps > > feeding me tutorials on making my FreeBSD machine furiously hard to > > crack. :) A securelevel >0 prevents /dev/mem and /dev/io to be opened for writing. X need to write to these devices. =20 > Not an exact answer to your question, but securelevel does not > prohibit you from runnung X if it is set after X started (from one of > .x... files in your home directory instead of rc.conf perhaps?) The security level is set with sysctl (kern.securelevel). You must be root to set it. Roland --=20 R.F.Smith (http://www.xs4all.nl/~rsmith/) Please send e-mail as plain text. public key: http://www.xs4all.nl/~rsmith/pubkey.txt --y0ulUmNC+osPPQO6 Content-Type: application/pgp-signature Content-Disposition: inline -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (FreeBSD) iD8DBQFDEYeOEnfvsMMhpyURAmPnAJ9+oqvA/qWMsOoZgzmr6JAg1Js+igCfR3g4 TFW+LE/YXZ+nr1nr7xc9tOU= =7L0S -----END PGP SIGNATURE----- --y0ulUmNC+osPPQO6--
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