chown: operation not permitted.

[Stenny]

Dear,

        Don't know whether someone have already ask this question, if yes please tell 
where to find more information.

        I've login to a vs with admin user, and try to change owner of a file which 
own by admin to ftp, but it return chown: ftp : operation not permitted.

        Isn't it admin user can change any file which within the uid-gid range of the 
vs?

    Thanks you.

            Stenny
            [EMAIL PROTECTED]