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What if you trapped all calls to the page that did not have the proper query string by printing out an error page for each URL that did not match; something like:

#/usr/bin/perl use CGI qw(:standard); use strict; my $q=new CGI; # Check values from the query string unless ($q->param('user') eq 'foolish' && $q->param('id') eq '2') { print $q->header, $q->start_html(-title=>'Page not found'); print h2("This page was not found"), $q->end_html; exit; } # Real page code follows

This only works if the script were the first page called from a blank location line by a user. If you use the query string user=foolish&id=2 in a redirect, hidden value, or any other programmatic call to the script, the keys can easily be seen by anyone running the scripts. Then I think you will need one of the more hard-core authentication methods recommended above.

Live in the moment

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

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