File permissions - how to "lock" a directory

Paul Schmehl pschmehl_lists at
Sat Sep 29 22:13:46 UTC 2012

--On September 29, 2012 4:59:50 PM -0500 Adam Vande More 
<amvandemore at> wrote:

> On Sat, Sep 29, 2012 at 4:41 PM, Paul Schmehl <pschmehl_lists at>
> wrote:
> I have a particularly thorny problem I'm trying to solve, but I'll bet
> FreeBSD has a solution.
> I'm running a webserver using suphp.  It's very picky about permissions.
> It wants the web server user (www) to be the owner of all directories and
> files.
> Meanwhile, the site owners want to be able to update and add files to the
> site.  When they update files everything is fine.  When they upload new
> files, the ownership of the file is user:user instead of www:user, so
> apache can't display them.
> Is there a way to "lock" a directory such that all files created in that
> directory are owned by the directory owner?  If not, I'll have to script
> something to change perms after uploads.
> There is the suiddir option, see mount(8) and chmod(2).
Thanks, Adam.  I see now I didn't read chmod(1) closely enough.  I'm now 
using 4770 for directories, and I hope this will solve the problem.

Paul Schmehl, Senior Infosec Analyst
As if it wasn't already obvious, my opinions
are my own and not those of my employer.
"It is as useless to argue with those who have
renounced the use of reason as to administer
medication to the dead." Thomas Jefferson
"There are some ideas so wrong that only a very
intelligent person could believe in them." George Orwell

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