>
>(I'm using Mathopd as a remote image server for the many little graphic 
>bits on my site.  So allowing clients to cache our site's images for many 
>days is a real bonus.)
>

I think most people use Mathopd for this purpose. And besides "Expires:" and 
"Cache-Control:" the most important fitures are [3,4]:
1) Expires for HTTP/1.0
2) Cache-Control for HTTP/1.1
3) Keep-Alive (tuned on for serving several images on web pages and off for banner 
exchange engines when there's only one hit at the short period of time)
4) something like MMAP_STATIC Apache module, because, for example, I can use Mathopd 
to give image content total sized 1Mb (500 small images like empty.gif, different 
icons, etc.) and it would be very useful to load it into Mathopd memory cache at 
start-up of the server either by providing file names of each image or just entering 
the size of this buffer.

Best Regards,
Paul

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