Client Cache Time vs. Server Cache Time

[WarrickF]

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?

Thanks
Warrick

Posted at Nginx Forum: http://forum.nginx.org/read.php?2,228499,228499#msg-228499