【Nginx】【高级进阶篇】108 反向代理缓存proxy cache配置

4. Activates the cache for connections to upstream servers. The connections parameter sets the maximum number of idle keepalive connections to upstream servers ... upstream · server · hash · keepalive

The “X-Accel-Expires” header field sets caching time of a response in seconds. · If the header does not include the “X-Accel-Expires” field, parameters of ... proxy_cache_path · proxy_cache_purge · proxy_next_upstream · proxy_redirect

Cache both static and dynamic content from your proxied web and application servers, to speed delivery to clients and reduce the load on the servers.

Nginx has a variable $upstream_cache_status. This can be used for any upstream. We are using it mainly for our WordPress + fastcgi_cache.

This module extends the lua-nginx Lua module. It adds the ability to read and set values from nginx's internal cache metadata.

NGINX performs name resolution queries for upstream server domain names upon service starts and reloads and after TTL of cached responses expire.

I want to set up Nginx as a caching reverse proxy in front of Apache/Django: to have Nginx proxy requests for some (but not all) dynamic pages to Apache, then ...

基本上，這表示如果你的upstream server改變了，對你的cache衝擊會最小。 設定權重. 預設的權重是相同的。如果想要設定權重可以如下所示： # http upstream backend_hosts { ...

If the cached file is over 6 hours old, don't use it, just return a 502. If the upstream server is available, never use the cache.

使用Nginx作為緩存伺服器(Cache Server) · 緩存伺服器(Cache Server) · 架構解說 · 實際配置 · 配置解說 · 驗證測試 · 緩存解說proxy_cache_key · 清理緩存 · 結語.