Forum Discussion
cache-control header response
Is there a way to set to intercept the http header response and set cache-control (i.e. set control-control: private and max-age of 7 days)
for ONLY static files specified?
Thanks!
Regards,
Traolly Xiong
12 Replies
- hoolio
Cirrostratus
Hi Trx, - We are on version BIG-IP 9.4.5 Build 1049.10 Final. Will your approach work with this version? If we can modify the cache headers at the f5 level, we NO longer need caching configuration on our app servers or IIS web servers. This would be great and save time testing/debugging.
- hoolio
Cirrostratus
This should work fine on 9.4.5. You'd want to use matchclass and/or findclass to do the lookups against the datagroup(s). - Thanks.
- hoolio
Cirrostratus
Hi TRX,when HTTP_RESPONSE { if { [HTTP::header Content-Type] ne ""} { if {[matchclass [HTTP::header Content-Type] equals static_content_types_class]}{ HTTP::header replace "Cache-Control" "private, max-age=604800" } } }
- I think the class are only allowed in version 10.x correct?
I defined a class but can't save it.
ex)
class static_Files {
{"zip""rar""js""css""ppt""pptx""doc""docx""xls""xlsx""pdf""jpeg""jpg""png""gif"}}
I get an error "undefined procedure: class]...
Thoughts?
Regards,
TRX
- hoolio
Cirrostratus
A datagroup is a separate object from an iRule. You can define a datagroup in any LTM version under Local Traffic >> iRules >> Datagroup tab. - Now would I just do something similar like this after creating it?
- hoolio
Cirrostratus
You can use this example: - hoolio
Cirrostratus
That looks right. Do you see any TCL errors in the /var/log/ltm file? Did you update the name of the datagroup in the iRule to static_files_TRX?
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