BPS Setup Wizard is not adding WP Super Cache custom code

I checked your site and you have an nginx server. nginx servers do not process htaccess code. WP Super Cache will detect that you have an nginx server and not create htaccess Browser caching code. So to make the BPS alert go away do these steps. I’ll automate this fix in the next BPS version.

1. Copy the WPSC placeholder text below into this BPS Root Custom Code text box: 1. CUSTOM CODE TOP PHP/PHP.INI HANDLER/CACHE CODE
2. Click the Save Root Custom Code button.

# BEGIN WPSuperCache
# END WPSuperCache

Hmm actually I have already added that nginx conditional code in the current BPS version. Do you have the most current version of BPS installed? If you have the most current version of BPS installed then your server is not processing this php code below correctly. Intermittent website/server crashes could indicate that there is a problem with your PHP build/compile/installation. Try switching to another PHP version in your web host control panel. Example: If you are currently using PHP 7.0 then switch to PHP 7.4, etc.

if ( substr( esc_html( $_SERVER['SERVER_SOFTWARE'] ), 0, 5 ) == 'nginx' ) {		
	return;
}

• This reply was modified 3 years, 1 month ago by AITpro.
• This reply was modified 3 years, 1 month ago by AITpro.

Go to the BPS System Info page and copy and paste this info below. Maybe you have a frontend nginx proxy and apache backend server? When I checked your site using Built With it shows nginx as your web server.

Server Type: Apache
Operating System: Linux
WP Filesystem API Method: direct
Server API: litespeed CGI Host Server Type

Thank you for the quick response!

I have an nginx plugin currently active, so that’s likely the issue. I will try deactivating that and changing the PHP version before pasting the BPS code you gave earlier.

BPS Version is 5.7

Here is the c/p you asked for:
Server Type: Apache
Operating System: Linux
WP Filesystem API Method: direct
Server API: fpm-fcgi CGI Host Server Type

What is the name of the nginx plugin? I checked your web host and they do use nginx and apache together. htaccess code does work on your web host. So maybe WPSC thinks you have a pure nginx web server and is not creating htaccess Browser caching code automatically? Check your WPSC option settings to see if Browser caching is enabled/turned on or not.

Those of you familiar with .htaccess files and how they work with Apache will note an important difference: Nginx does not recognize .htaccess files. Configurations must be made in the server by an experienced system administrator.

This effectively breaks the WordPress “Pretty Permalinks” feature. Furthermore, many of our advanced users rely upon .htaccess to complete all kind of tasks. (Though, we should note, for most users, using a reliable plugin is better than editing .htaccess directly.)

In order to get around this, we use Apache as the main web server and Nginx as a proxy. This means that when a request for a page comes, Nginx first checks to see the if the page being requested has been cached. If that page has been cached then Nginx will serve the cached version. This increases page load speed dramatically because neither PHP nor MySQL are required to generate that page.

• This reply was modified 3 years, 1 month ago by AITpro.
• This reply was modified 3 years, 1 month ago by AITpro.
• This reply was modified 3 years, 1 month ago by AITpro.

It looks like the combination of all of the above was able to do the trick! I haven’t experienced a crash during this whole process so I’m assuming that was fixed with the PHP refresh. At this point, if the crashes continue I will likely just call my host and have them deal with it.

Thank you for your help!

The nginx plugin I had is called Nginx Helper by rtCamp.

I just reactivated the Nginx Helper plugin and haven’t had any issues yet. I did have caching enabled previously but I just allowed 304 browser caching as that has been disabled this entire time.

It looks like the Nginx Helper plugin is only for pure nginx servers and not for an nginx frontend proxy and apache backend server, but I could be wrong. I checked the FAQ and the GitHub help info, but there is not explicit info saying whether or not this plugin will work on your type of config.

• This reply was modified 3 years, 1 month ago by AITpro.

Your host has a help article about the Nginx Helper plugin. So yep it does work on your type of config. Do a search using your web host’s name + Nginx Helper.