how does file protection work?

[joop g]

hello,

I want to set some special access protections on a directory, which is held
on a data server. When I right click, and select Properties, I get a tab
"Beveiliging" (sorry, I have a Dutch version-- I presume it is something
like "security" or "access rights"). Usin an admin account, I can then
modify it, but it seems to be impossible to store the modified access
rights. No reason is given: just "cannot store the modified rights".

My principal question is: where are these rights stored? Locally (but then I
would be able to store them as local admin) or on the server (but then I
should be able to store them as a server admin)? Exactly how does this work?

[kelly]

Try disabling your anti-virus software temporarily, joop g

[joop g]

???

[Rob]

What OS and file system is the server running and do you have sufficient
rights on the domain (assuming it is a domain)?

[joop g]

The server is running Linux with a Samba domain server. The clients are
running XP. I have all rights I need (have tried server root as well as
local administrator accounts). The directories I am talking about are in an
NTFS file system, part of the larger SMB file system.

At least part of my question is which account I should use, that is why I
try to find out exactly what is happening behind the screen. It seems that
updating itself is permitted (at least, the client accepts it), but it fails
when I push "close", when the updated rights presumably are stored, so the
problem might be in the storage part. But as long as I do not know where
these access rights are being/to be stored, that is mere guesswork.

[Rob]

In NTFS, the permissions are stored as part of the Master File Table.
Knowing the *nix user permissions you need to change them via SAMBA is
probably the key.
I think you may find this link helpful:
http://www.samba.org/samba/docs/man/Samba-HOWTO-Collection/AccessControls.html

HTH
--
Rob