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Dear Client,
We offer a product against hotlinking, which extends the protection to movies. Using .htaccess rules the only protection you can do is for images. Here is more information on the module:
The problems caused by "hotlinking" are well known: excessive bandwidth consumption & costs, violation of copyrighted material, lack of control in managing the browsing experience of visitors, etc. A synonym for this problem, "deeplinking", is often used to describe the undesirable effects of serving up a hotlinked resource for which the content
server owner gains no benefit (i.e. no advertisements displayed, no "eyes" on the intended page, etc).
The most common remedy for preventing hotlinking usually relies on a check of the HTTP Referer request header. The Refering domain value is compared against the serving domain or a list of trusted domains. In the Apache world, this is commonly done with setenvif and mod_rewrite rules in .htaccess files or the main Apache config files. Similar Referer-checking approaches are often done with scripts (cgi, php, etc). The Referer header is -not- a reliable request header, is easily spoofed, and does not address URL copying or direct type-ins. Other approaches to stopping hotlinking rely on cookies or javascript events that are easily circumvented or disabled. The same can be said for periodic shuffling or randomized renaming of content directories and/or files -- hotlinking bots and spiders can easily and quickly work out the new hierarchy structure. Still other competitive script products or modules/*SAPI filters that attempt to stop hotlinking often have serious drawbacks: exce
ssive CPU/memory consumption or incompatibility with load-balanced clusters.
The AHL module uses custom Apache configuration directives to customize and adjust the protection behavior. Some of these directives are universal across all virtualhosts on the server and can only be set in the main httpd.conf section by the administrator (e.g. root).
Designed as a high-performance Apache module, AHL is a unique approach to hotlink defense that is not susceptible to the problems mentioned above. The module has nominal CPU/memory impact under normal operation, remains fully effective in clustered setups, and is not easily spoofed or bypassed.
If you are interested in this, let us know. As far as for the image, I can confirm it shows a broken image.
Regards,
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