From: Daniel J Walsh <dwalsh@redhat.com>
To: Hal <hal_bg@yahoo.com>
Cc: selinux@tycho.nsa.gov
Subject: Re: xguest_u, LDAP and /tmp
Date: Tue, 04 Mar 2008 10:34:33 -0500 [thread overview]
Message-ID: <47CD6C09.7010609@redhat.com> (raw)
In-Reply-To: <394679.44483.qm@web32205.mail.mud.yahoo.com>
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Hal wrote:
> Hi all,
> I have been trying to implement xguest on our public computer room.
> The users are authenticated by OpenLDAP (for easier user maintenance since
> there are many computers) and I successfully converted all the users to
> xguest_u.
> I want to achieve a bit more security: I do not want the users to see other
> usernames using for example "ps -ef", "who", lastlog, and /tmp or /var/tmp.
>
> I saw something in D.Walsh blog which seems promising:
> ======
> Also add these lines to /etc/secuirty/namespace.conf
> /tmp tmpfs tmpfs ~xguest
> /var/tmp tmpfs tmpfs ~xguest
> $HOME tmpfs tmpfs ~xguest
> ======
> So is there any way to make this default for all the users on all machines. And
> new users to work automatically with such private /tmp and /var/tmp?
>
> Converting users however introduced another problem with firefox, it stopped
> working for the ldap users, but not for the local (/etc/passwd) ones which are
> also xguests. Tcpdump revealed LDAP requests by firefox only for the LDAP
> users. Any idea how to solve this issue?
>
Ok I need to add auth_use_nsswitch to mozilla policy
> Thank you in advance!
> All ideas and solutions are welcome!
>
> Hal
>
>
>
>
> ____________________________________________________________________________________
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prev parent reply other threads:[~2008-03-04 15:36 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-04 13:37 xguest_u, LDAP and /tmp Hal
2008-03-04 15:34 ` Daniel J Walsh [this message]
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