Forum Discussion
Chris_Phillips
Nimbostratus
Nimbostratuscaching images - ignore HTTP request?
Howdy,
I'm updating some inherited rules to cache images: when HTTP_REQUEST {
set filematch 0
Check if requested URI ends with the cache control file types or
the Content-Type equa...
Michael_YatesNimbostratus
NimbostratusHi Chris,
I am guessing that you do not want to use the normal RAM Cache provided in the LTM and that you are not using the IBR (Intelligent Browser Referencing) from WA (Web Accelerator) and plan on modifying the "Cache-Control" value manually.
While this is an RFC Standard 14.9 Cache-Control, this will only work if the browser is RFC Compliant.
Have you thought about using a combination of RAM Cache to remove the load from the servers, and trying to modify the Cache-Control Value to remove the load from RAM Cache at the same time? (If the browser is not RFC Compliant the load would still be off-loaded from the servers by RAM Cache).
To answer your questions about URI checking, it is the default methodology for caching things in RAM Cache with just the LTM, I am not sure what qualifiers are used in WA, but it does seem safer to use the URI Value.
What you are doing does seem really interesting, I've never thought of doing it before. Can you post back some of your results?