Around...2005? 2006? I discovered someone had deep-linked to an image on work's webserver, where I was admin (being one of the few who knew Linux). Instead of

Around...2005? 2006? I discovered someone had deep-linked to an image on work's webserver, where I was admin (being one of the few who knew Linux). Instead of just outright replacing the image, I set up rules in Apache to check the referer, and if it was our site, serve the correct image. Anyone else, it served up something...questionable. Problem solved.