Nginx Cache Controller

This plugin provides some functions of controlling Nginx proxy server cache.

Security

• Making comment authors’ information ajaxed to prevent the information from caching.
• Send no-cache header on password protected posts to prevent the posts from caching.
• When a scheduled post is published, it will delete the cache through Ajax.

Controlling cache

• Sending X-ACCEL-EXPIRES, you can specify the available period of the cache.
• When you save your post and someone post comments, the cache is deleted automatically.
• Add a menu on the admin bar to delete the cache.

Memo

• Gets comment poster’s IP address by HTTP_X_FORWARDED_FOR header.
• Fixes the issue that the permanent link setting includes index.php.
• When the cache’s expiration period is more than 86400 sec, change the value of wp_verify_nonce() same as the period.

WP-CLI Support

Flush all proxy caches.
wp nginx flush

Show list of all proxy caches.
wp nginx list –format=csv

wp nginx list --format=json

See help.
wp help nginx

Languages

• English(en) – JOTAKI Taisuke
• Japanese(Ja) – JOTAKI Taisuke
• Vietnamese(vi) – Trong

Contributor

• Ninjax Team
• miyauchi
• wokamoto
• gatespace

Credits

This plug-in is not guaranteed though the user of WordPress can freely use this plug-in free of charge regardless of the purpose.
The author must acknowledge the thing that the operation guarantee and the support in this plug-in use are not done at all beforehand.

Contact

• https://github.com/miya0001/nginx-champuru

• A plug-in installation screen is displayed on the WordPress admin panel.
• It installs it in wp-content/plugins.
• The plug-in is made effective.

Example of Nginx settings:

Allow X-ACCEL-EXPIRES for fastcgi.

   location ~ \.php$ {
        include        /etc/nginx/fastcgi_params;
        fastcgi_pass   unix:/tmp/php-fpm.sock;
        fastcgi_index  index.php;
        fastcgi_param  SCRIPT_FILENAME  $vhost_root/$fastcgi_script_name;
        fastcgi_pass_header "X-Accel-Redirect";
        fastcgi_pass_header "X-Accel-Expires";
    }

Setting cache directory for reverse proxy.

proxy_cache_path  /var/cache/nginx levels=1:2 keys_zone=czone:4m max_size=50m inactive=120m;

• The default path is /var/cache/nginx.
• The default value of levels is 1:2.
• You can change the cache path at the admin panel.

Setting the key for the reverse cache proxy.

proxy_cache_key "$scheme://$host$request_uri"

• You can customize proxy_cache_key with nginxchampuru_get_reverse_proxy_key hook.

No FAQ provided.