I would love to know why there is no error request that would be sent to /dev/null – ie don’t reply to the ignored request – just send it to the bitbucket and move on to the next request. What the world needs is an error code that totally ignores specified errors, IPs, etc.

LOL! Thanks buddy, at first I thought you kidding, as I noted your website to be the venerable wireshark.org, which is probably the greatest computer program ever invented.

I checked it out and sure enough, you were right! I updated this article and my servers errordocuments to reflect this new info. Thanks!

Any attempt to brew coffee with a teapot should result in
the error code "418 I'm a teapot". The resulting entity body
MAY be short and stout.
 
7. Security Considerations
 
Anyone who gets in between me and my morning coffee should be
insecure.
 
Unmoderated access to unprotected coffee pots from Internet users
might lead to several kinds of "denial of coffee service" attacks.
The improper use of filtration devices might admit trojan grounds.
Filtration is not a good virus protection method.

Classic!

2.3.2 418 I’m a teapot

Any attempt to brew coffee with a teapot should result in the error
code “418 I’m a teapot”. The resulting entity body MAY be short and
stout.

Those are commonly used to maintain that information internally by the servers.

I wrote all about it when explaining you can use the REDIRECT_URL or REDIRECT_STATUS variables to secure direct access to your binary files..

Each new variable will have the prefix REDIRECT_. REDIRECT_ environment variables are created from the CGI environment variables which existed prior to the redirect, they are renamed with a REDIRECT_ prefix, i.e., HTTP_USER_AGENT becomes REDIRECT_HTTP_USER_AGENT. In addition to these new variables, Apache will define REDIRECT_URL and REDIRECT_STATUS to help the script trace its origin. Both the original URL and the URL being redirected to can be logged in the access log.

I have one problem i am not able to get the value of $_SERVER['REDIRECT_URL'] i have that script on subdomain can you tell me what is lines required in .htaccess file to get values of $_SERVER['REDIRECT_URL']?