[CentOS] Centos VPS Kernel 2.6.35.4 & 'string-less' IP tables

On Wed, 2011-08-31 at 10:17 -0700, John R Pierce wrote:

> anyways, your webserver already filters these out, its not going to 
> respond to an invalid URL with anything other than '404'.  thats its
> job.

The 'error' is trapped; a PHP routine examines the URL for known (in a
list) hacker strings; if an established 'hacker' string is detected the
site's .htaccess file is updated with a 'deny from' statement; in all
instances an email is sent to the systems' monitor.

Oh, and a suitable customised web page is displayed in response.

An improvement is the real-time adding of block IP commands to IP
Tables.

Paul.