Having An Images HTTPD Server Only: Lighthttpd

For my website I have a server which houses all of my gallery IMAGES of my user profiles. There are over 100,000 images on the server and it's only purpose is to provide those images with http.

However, the http server also has PHP installed, and it's only purpose is for uploading new images. Therefore users eventually get redirected to the images server where they can upload the image.

This all works, but in the future I want to remove the PHP side to the server. I also want to change the whole server program from Apache to Lighthttpd. This is because, lighthttp is a very low overhead web server program, but also provides very little features.

So I was wondering, if I was to do so, and since PHP is not installed, then I would have to make the upload pages on the main http server (which has PHP and Apache). Then I would have to make the main server send the uploaded image to the the lighthttp server via some sort of the scp system call, via PHP. I know that this IS possible, but when it comes down to security holes and so on, would this method really be worth it?

Generally I want to have the lighthttp setup only because it eliminates having to have any dynamic content. Obviously this can also be done with apache (removing dyanmic content), but lighthttp may be more efficient for static content.