Without the `mediaproxy` function, Pleroma don't store any remote content like pictures, video etc. locally. So every time you open Pleroma, the content is loaded from the source server, from where the post is coming. This can result in slowly loading content or/and increased bandwidth usage on the source server.
With the `mediaproxy` function you can use the cache ability of nginx, to cache these content, so user can access it faster, cause it's loaded from your server.
## Activate it
* Edit your nginx config and add the following location:
```
location /proxy {
proxy_cache pleroma_media_cache;
proxy_cache_lock on;
proxy_pass http://localhost:4000;
}
```
Also add the following on top of the configuration, outside of the `server` block:
If you came here from one of the installation guides, take a look at the example configuration `/installation/pleroma.nginx`, where this part is already included.
* Append the following to your `prod.secret.exs` or `dev.secret.exs` (depends on which mode your instance is running):