What is Nginx caching and how does it work?

What is Nginx caching and how does it work?

Nginx caching is a mechanism that stores copies of files or responses to reduce load times and server load. It works by saving the output of requests and serving that cached content for subsequent requests.

What types of caching does Nginx support?

Nginx supports several types of caching, including proxy caching, microcaching, and fastcgi caching. Each type serves different use cases.

How can I configure caching in my Nginx server?

You can configure caching in Nginx by using directives like 'proxy_cache_path' and 'proxy_cache' in your server block. Would you like a sample configuration?

Yes, please provide a sample configuration for proxy caching.

Here's a simple example:

http {
    proxy_cache_path /tmp/cache levels=1:2 keys_zone=my_cache:10m;
    server {
        location / {
            proxy_cache my_cache;
            proxy_pass http://backend;
        }
    }
}

This sets up a cache at /tmp/cache for your backend server.