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Date:      Mon, 20 Jun 2011 21:16:49 +0200
From:      Patrick Proniewski <patrick.proniewski@univ-lyon2.fr>
To:        FreeBSD Filesystems <freebsd-fs@freebsd.org>
Subject:   Re: ZFS, noexec and snapshots
Message-ID:  <16735164.54848.1308597423064.JavaMail.root@co4>
In-Reply-To: <43CFBAB7-9383-4D18-A2FF-061766637CE7@univ-lyon2.fr>
References:  <43CFBAB7-9383-4D18-A2FF-061766637CE7@univ-lyon2.fr>

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Hello,

Following Micheal's reply, I realise my english is not as clear as I wish :=
)

> On 19/06/2011 10:03, Patrick Proniewski wrote:
>>=20
>> Every ZFS volume is made with noexec, but I've just find out that the au=
tomount of .zfs/snapshot/* is not made with the noexec option.
>>=20
>=20
> Just two days ago I was wondering why some of my snapshots are not=20
> visible in .zfs/snapshot/ after setting snapdir=3Dvisible. All of given=
=20
> datasets have the noexec property set on.
> I guess that is the answer then.
>=20
> Michael


What I intended to say is:

Automount of .zfs/snapshot/* works, but snapshots are mounted without the o=
ption "noexec", despite the fact that the property should be inherited from=
 parents (i think).
Well, if you rely on "noexec" as a security feature, just don't use snapsho=
ts, because it looks like snapshots are always mounted with "exec =3D on"


Patrick PRONIEWSKI
--=20
Administrateur Syst=E8me - DSI - Universit=E9 Lumi=E8re Lyon 2




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