[thelist] hotlinking

John C Bullas jcbullas at nildram.co.uk
Fri Oct 31 11:24:53 CST 2003


At 09:54 31/10/2003, DESCHAMPS Stéphane DSI/SICOR wrote
>John C Bullas wrote:
>
> > >http://www.allmyfaqs.com/faq.pl?Prevent_bandwidth_theft

I chose the second Rewrite option on the page above that covers this AFAIK

> >
> > Implemented in each graphic images directory
>
>There was a discussion here a few months ago that said that more and more 
>firewalls hide referer information to prevent easy hacking of some sort 
>(sorry, no time to re-google the thread, but I thought you'd like to know 
>anyway).
>
>Thus if you check the referer that asks for you images and there's no 
>HTTP_REFERER, you'll send the bad.gif image to someone who's earnestly 
>browsing your site with a browser set to normal settings but with an ISP 
>who's restricted the feature.
>
>You might want to be careful with this method.
>
>HTH
>s t e f



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