nginx wordpress multisite subdirectory multiple domains

Prepare for Multi site network

deactiavate plugins it will also asks later.

First enable WordPress multisite on website

Table of Contents

Step 2: Allow Multisite

Edit the wp-config.php file:

nano /usr/share/nginx/wordpress/wp-config.php

nano /var/www/html/southjobs.in/wp-config.php
Add the following code before the comment /* That’s all, stop editing! Happy blogging. */:

/* Multisite settings */
define( ‘WP_ALLOW_MULTISITE’, true );

Step 3: Network setup

The previous step enables the Network Setup item in your Tools menu. Use that menu item to go to the Create a Network of WordPress Sites screen.

Create a Network of WordPress Sites page

Step 4: Enabling the Network

Populated settings when creating a network of sites

Nginx config for Sub-directories for domain named example.com:

server {
listen [::]:80 ipv6only=off;
server_name examplewp.com *.examplewp.com shoppingsite.com companysite.org;

root /usr/share/nginx/wordpress;

rewriting wp-admin site.com/musite/wp-admin

# Add trailing slash to */wp-admin requests.
rewrite /wp-admin$ $scheme://$host$uri/ permanent;

# Pass uploaded files to wp-includes/ms-files.php.
rewrite /files/$ /index.php last;

if ($uri !~ wp-content/plugins) {
rewrite /files/(.+)$ /wp-includes/ms-files.php?file=$1 last;
}

# Rewrite multisite ‘…/wp-.*’ and ‘…/*.php’.
if (!-e $request_filename) {
rewrite ^/[_0-9a-zA-Z-]+(/wp-.*) $1 last;
rewrite ^/[_0-9a-zA-Z-]+.*(/wp-admin/.*\.php)$ $1 last;
rewrite ^/[_0-9a-zA-Z-]+(/.*\.php)$ $1 last;

}

server {
        ##DM - uncomment following line for domain mapping	
        #listen 80 default_server;
	server_name example.com *.example.com ;
	##DM - uncomment following line for domain mapping
	#server_name_in_redirect off;

	

	root /var/www/example.com/htdocs;
	index index.php;

	if (!-e $request_filename) {
		rewrite /wp-admin$ $scheme://$host$uri/ permanent;	
		rewrite ^(/[^/]+)?(/wp-.*) $2 last;                     
		rewrite ^(/[^/]+)?(/.*.php) $2 last;                   
	}

	location / {
		try_files $uri $uri/ /index.php?$args ;
	}

	location ~ .php$ {
		try_files $uri =404;
		include fastcgi_params;
		fastcgi_pass 127.0.0.1:9000;
	}

	
}

https://www.nginx.com/resources/wiki/start/topics/recipes/wordpress/

https://wordpress.org/documentation/article/create-a-network/

nginx -t && nginx -s reload

Step 3: Installing a Network

Administration >Tools > Network Setup.

Sub-domain Installation

Because your installation is not new, the sites in your WordPress network must use sub-domains. The main site in a sub-directory installation will need to use a modified permalink structure, potentially breaking existing links.

bypassing sub domain define(‘ALLOW_SUBDIRECTORY_INSTALL’, true);

define( ‘MULTISITE’, true );

define( ‘SUBDOMAIN_INSTALL’, false );
define( ‘DOMAIN_CURRENT_SITE’, ‘southjobs.in’ );
define( ‘PATH_CURRENT_SITE’, ‘/’ );
define( ‘SITE_ID_CURRENT_SITE’, 1 );
define( ‘BLOG_ID_CURRENT_SITE’, 1 );

if changes not reflected restart php fpm service php8.1-fpm restart to clear opcode cache or opcache

https://wordpress.org/documentation/article/nginx/

/wp-admin/network/sites.php

Create new site

nginx wordpress multisite subdirectory settings

root /var/www/example.com/htdocs;

index index.php;

if (!-e $request_filename) {
                rewrite /wp-admin$ $scheme://$host$uri/ permanent;         
                rewrite ^/(/[^/]+)?(/wp-.*) /$2 last;      
                rewrite ^/(/[^/]+)?(/.*\.php)$ /$2 last;
        }

if (!-e $request_filename) {
                rewrite /wp-admin$ $scheme://$host$uri/ permanent;         
                rewrite ^/wordpress(/[^/]+)?(/wp-.*) /wordpress$2 last;      
                rewrite ^/wordpress(/[^/]+)?(/.*\.php)$ /wordpress$2 last;
        }


final file

server {
        server_name example.com ;

        access_log   /var/log/nginx/example.com.access.log;
        error_log    /var/log/nginx/example.com.error.log debug;

        root /var/www/example.com/htdocs ;
        index index.php;

        if (!-e $request_filename) {
                rewrite /wp-admin$ $scheme://$host$uri/ permanent;         
                rewrite ^/wordpress(/[^/]+)?(/wp-.*) /wordpress$2 last;      
                rewrite ^/wordpress(/[^/]+)?(/.*\.php)$ /wordpress$2 last;
        }

        location / {
                try_files $uri $uri/ /wordpress/index.php?$args ;
        }

        location ~ \.php$ {
                try_files $uri /wordpress/index.php;
                include fastcgi_params;
                fastcgi_pass 127.0.0.1:9000;
        }
}

3rd way

# WordPress Multisite Subdirectory
if (!-e $request_filename) {
rewrite /wp-admin$ https://$host$uri permanent;
rewrite ^/[_0-9a-zA-Z-]+(/wp-.*) $1 last;
rewrite ^/[_0-9a-zA-Z-]+(/.*\.php)$ $1 last;
}

if (-f $request_filename) {
break;
}