[squid-users] Re: Forced caching of some content in acceleration mode

Thanks to adri on the IRC channel I was pointed to header_access and I
have got it working.

Best regards
 Michael Boman

On 10/4/07, Michael Boman <michael@michaelboman.org> wrote:
> Hi list,
>
> I am working on a Microsoft SharePoint/IIS setup that doesn't want to
> provide the "correct" caching headers. This is a deliberate design
> feature from the people in Redmond, but it is not what we want to
> have.
>
> Due to the fact images are handled by SharePoint they leave the IIS
> server with caching set to private, with a max-age of 0. The thing is
> that these images are static, and I would much rather have them cached
> by any upstream proxy and browser to limit the amount of traffic goes
> to the server.
>
> My idea is to put a squid proxy in front of the IIS/SharePoint server
> to re-write the caching header to what I deem to be acceptable
> (although I know I am breaking the HTTP standard by doing so).
>
> This is one of the configuration lines (many like this, one for each
> file extension I want to force caching for):
>
> refresh_pattern .jpg 14400 50% 18000 override-expire override-lastmod
> reload-into-ims ignore-reload ignore-no-cache ignore-private
> ignore-auth
>
> By right that one should cache all .jpg requests for 4-5 hours,
> regardless what the originating web server says. However, when I use
> Fiddler (a pretty cool HTTP debugging proxy) I still see my .jpg image
> responses as private with a max-age set to 0.
>
> I am running 2.6stable16. Could someone please enlighten me what seems
> to be wrong?
>
> Full config can be found at http://michaelboman.org/wiki/index.php?title=Squid
>
> Best regards
> Michael Boman
>
> --
> IT Security Researcher & Developer
> http://michaelboman.org
>

-- 
IT Security Researcher & Developer
http://michaelboman.org