[DUG] Licencing schemes

[Todd Martin]

Thanks Paul.

That answers a question I've had rattling around in my brain ever since
someone posted a DUG message about NX Server software. Which was "how do you
limit the number of users accessing an application through a terminal
server?"

Todd.


----- Original Message -----
From: "Paul Heinz" <paul at accredo.co.nz>
To: "NZ Borland Developers Group - Delphi List" <delphi at ns3.123.co.nz>
Sent: Monday, May 01, 2006 11:45 AM
Subject: RE: [DUG] Licencing schemes


> Todd asked:
>
> > Okay. So how do you do it in Unix?
>
> Essentially, the same way but record locking support and APIs vary across
> different Unixen, different versions, and different file systems (NFS
often
> being an issue).
>
> Also, it may be either daemon-based which only supports advisory locking
> where you can read and write under locks or kernel-based which also allows
> mandatory locking where locks do block writes and/or reads.
>
> http://en.wikipedia.org/wiki/File_locking has a pretty good summary.
>
> TTFN,
>   Paul.
>
>
>
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