Re: what's next for the linux kernel?

[Marc Perkel <marc@perkel.com>]

Horst von Brand wrote:

> Marc Perkel <marc@perkel.com> wrote:
>
> [...]
>
>  
>
> > What you don't understand is that Netware's permissions mechanish is
> > totally different that Linux. A hard link in Netware wouldn't inherit
> > rights the way Linux does. So the user would have rights to their hard
> > link to delete that link without having rights to unlink the file.
> >    
>
> OK, so a "hard link" isn't (because it has separate permissions than the
> original). Sorry, watered-down symlinks don't cut it. Or just by linking
> the file into my place I now have rights to modify it? The later idea makes
> my skin try to crawl away...
>
>  
>
> > This is an important concept so pay attention. Linux stores all the
> > permission to a file with that file entry.
> >    
>
> You are completely right: This is an extremely central concept to
> everything Unix.
>
>  
>
> >                                           Netware doesn't. Netware
> > calculates effective rights from the parent directories and it is all
> > inherited unless files or directoies are explicitly set
> > differently. So if files are added to other people folders then those
> > people get rights to it automatically without having to go to the
> > second step of changing the file's permissions.
> >    
>
> Which is a very clear explanation of how broken it all is. No wonder
> NetWare is no more. Files whose persmissions change depending on which way
> you look at them is a nightmare. Sure, you /can/ manage that for small(ish)
> setups by brute force, but it soon has to break down.
>  
If you all think Netware is no more you are under an interesting 
illusion. Linux being cheap has cut into the little server market - but 
if you have thousands of servers all running off the same shared 
permissions systems - you just aren't going to do that off of Linux.

--
Marc Perkel - marc@perkel.com

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