I commend you on pointing out your 'Security by Obscurity', and you wanting it fixed. The best thing I can recommend is going through Ovid's Web Programming Using Perl course. It handles most of your security concerns as far as programming goes. There are just too many things to point out here in a post on perlmonks. Ovid even covers wog's excellent point (++) that HTTP_REFEFER can be spoofed (along with about everything else).

Then you have the fun task of locking down (hardening) your box.
I would recommend looking at:
  • Bastille
  • Security Focus


    • grep
    grep> rm -f /bin/laden

    In reply to Re: Preventing changes on the by grep
    in thread Preventing changes on the by DaWolf

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