On Sat, 11 Aug 2001, Graham Leggett wrote:
> The image processing is done in the image processing layer, the proxy
> acts as the caching layer like this:
>
> +---------+ +-------+ +-----------+
> | Browser | <-- | Proxy | <-- | Image | <-- Image
> +---------+ | cache | | Processor |
> +-------+ +-----------+
>
> The proxy cache can run on a different machine, or the same machine, or
> even be a separate virtual host on the webserver (if the image
> manipulator and the cache are both Apache).
When you say "both Apache" you want to say "both Apache modules",
I think. I am thinking around the dedicated caching layer, since probably
(in the future) I'll want add "pre-cache", generating subimages when the
user request an image (with sections of the image, for example). (But this
is another tale).
> > If I use a dedicated caching layer, 1st, where can I find info?
>
> Look in the mod_proxy docs for the ProxyPass directive, and read the
> sections in RFC2616 about the Last-Modified and Expires headers so that
> the cache is effective.
And where can I find information about add the "Image Processor"
module, that is, information about put a layer between file and proxy
cache?.
> > and 2nd, can I agregate image processing?
>
> I don't follow - what does this mean?
What you say at the first of the email (the Image Processor
module) (Excuse my bad English).
Thank you very much,
Carlos.
http://www.improveyourweb.com : All about web, PHP-Nuke based site
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