> I am using PHP-4.1.1 on Linux,
> I wanted to know the difference between "nobody" user and normal user of
> operating system.

None.  Nobody is an ordinary user.  However, ordinary UNIX users can be set
up in all sorts of ways.

> This question just came to mind when, neither nobody's directory nor any
> entry was not found in /home or elsewhere.

That's deliberate.  The nobody user is set up with very few resources or
privileges and is then used to run things like the web server.  If a hacker
can exploit a weakness in the server to gain control and issue commands as
the user running it, the potential damage is limited to what that user can
do, which is not much.

Simon Ritchie

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