[G4] Permissions on external HD

[Ole Visby]

Thank you - just what I needed! :)


on 29/06/04 5:50, Perry The Cynic at perry at cynic.org wrote:

> --On Monday, June 28, 2004 4:37 PM +0200 Ole Visby <hamselv at olevisby.dk>
> wrote:
> 
>> Hi everyone!
>> 
>> I recently aquired a new external HD (FireWire). Is it possible to create
>> folders on it with permissions set for only a single user (me), so that
>> the content is, for instance, read-only or not accessible, unless
>> logged-in as me, like on my startup drive?
> 
> Yes. Select the disk icon in the Finder. Do a "Get Info". Open the
> "Ownership and Permissions" tab. Uncheck the "Ignore Ownership..."
> checkbox. Then use the popups in that section (open "Details") to set who
> can do what. You may have to click on the tiny padlock to the right to
> change ownership, which will require Administrator privileges.
> 
>> [...] Do the permissions still apply
>> if the drive is connected to a different computer?
> 
> No. The "ignore ownership" setting is separate for each computer.
> 
> Please understand that file permissions are "discretionary" (as the
> security folk say): they only matter if all the systems involved agree on
> what they mean. They cannot protect your files against someone who has
> physical possession of the disk. If that's what you need, you must put an
> encrypted disk image on the disk, and put your files into that; then access
> is effectively controlled by who knows the password, on any computer.
> 
> Cheers
>   -- perry
> ---------------------------------------------------------------------------
> Perry The Cynic                                             perry at cynic.org
> To a blind optimist, an optimistic realist must seem like an Accursed Cynic.
> ---------------------------------------------------------------------------
> 
> 
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-- 
Ole Visby
Jordbrovej 31, 1. mf.
8200 Århus N
86 19 22 68 / 25 32 22 66
hamselv at olevisby.dk
http://www.olevisby.dk