[FX.php List] RE: Security Concerns with FileMaker Website

[Stephen Knight]

Hi Edward and John,

The reality is that while you can take precautions (JS de-obfuscation of
email addresses for instance or even hyperlinks), there is no way to stop
serving pages only to bots without blocking some percentage of real users.
There are bot detecting scripts for PHP (based on the self-reported
USER_AGENT variable) but some bots will masquerade as real browsers or just
not report a user agent at all. Therefore at the current state of the web,
the only reliable solution that has been found is the usage of a CAPTCHA (
see http://en.wikipedia.org/wiki/CAPTCHA ) and there are some PHP packages
such as PEAR::CAPTCHA to implement the image based authentication for you. I
would suggest using something like this either before displaying your search
results or when the user selects a link but instead of a redirect he has to
verify that he is a real user.  


In Kindness
Stephen K Knight
http://www.fmwebschool.com
800.353.7950 / 386.453.5843
FMWebschool, we bring the web to life 
FX.PHP PHP XML MySQL CDML ASP

-----Original Message-----
From: fx.php_list-bounces at mail.iviking.org
[mailto:fx.php_list-bounces at mail.iviking.org] On Behalf Of John Moed
Sent: Wednesday, January 24, 2007 10:18 AM
To: fx.php_list at mail.iviking.org
Subject: [FX.php List] RE: Security Concerns with FileMaker Website

Edward,

To prevent the Search Engines from indexing your pages, you need to add the
following line to your HTML:

<meta name="robots" content="noindex,nofollow">

If your site is Password protected, the only people that would be able to
"harvest your site" are ones with passwords. Bot's need passwords too.

If anyone has any additional information, I would be interested in hearing
it!

Thanks,
John

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