Date: Mon, 1 Feb 2010 12:56:37 -0600 From: Dan Nelson <dnelson@allantgroup.com> To: Nerius Landys <nlandys@gmail.com> Cc: Lowell Gilbert <freebsd-questions-local@be-well.ilk.org>, FreeBSD Mailing List <freebsd-questions@freebsd.org> Subject: Re: /root permission reset on boot Message-ID: <20100201185637.GE50360@dan.emsphone.com> In-Reply-To: <560f92641002011041x484518bdqc9828eff404254fb@mail.gmail.com> References: <560f92641001312208r1af8a8a2j2be83fe231ad8d74@mail.gmail.com> <44ljfc2a2w.fsf@be-well.ilk.org> <560f92641002011041x484518bdqc9828eff404254fb@mail.gmail.com>
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In the last episode (Feb 01), Nerius Landys said: > >> I'm running FreeBSD 7.1 i386, and even after I "chmod 700 /root", after > >> a reboot it goes back to permission 755. 1. What's the reason for > >> this? There must be a good reason and I would like to know it. > >> Everything in FreeBSD just makes sense and is well designed (honestly, > >> no sarcasm here). > > > > It's something local to your machine; this doesn't happen on any machine > > I've used, and I can't find anything that could be configured for that. > > Perhaps I was mistaken about this happening after every reboot. Perhaps > it only happens when I upgrade my world (make buildworld, make > installworld, etc.). I do this often (every time a release patch is > released). > > So, perhaps this only happens during these upgrades? I was going to point blame at mtree, but the file for the root filesystem ( /etc/mtree/BSD.root.dist ) just lists /root without forcing a mode value. You could probably use either dtrace or the audit system to log exactly when the permissions get changed. -- Dan Nelson dnelson@allantgroup.com
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