Client Cache Time vs. Server Cache Time
mdounin at mdounin.ru
Wed Jul 11 15:31:38 UTC 2012
On Wed, Jul 11, 2012 at 09:15:53AM -0400, WarrickF wrote:
> Hi Guys,
> I'd like to setup a reverse proxy that functions as follows.
> Servers responds telling the client to cache content for 1 hour, but a
> the same time tells Nginx to cache the content for 24 hours.
> Every hour client still re-request content but it's served from cache.
> If something changes on the origin servers I can still dump the cache on
> Nginx, which will get a fresh copy.
> Is something like this currently supported?
1) Instruct nginx to ignore Cache-Control / Expires headers you
use to control expiration on client.
2) Either use explicit expiration set by proxy_cache_valid, or use
X-Accel-Expires header to control expiration from backend.
See here for more details:
More information about the nginx