$ sudo apt install nginx php7.4-fpm php7.4-mysql php7.4-cli php7.4-gd php7.4-xml php7.4-zip php7.4-mbstring php7.4-curl
Optionally install MariaDB (a popular MySQL fork)
$ sudo apt install mariadb-server mariadb-client php7.4-mysql
If you installed MariaDB, run the mysql_secure_installation script:
$ sudo mysql_secure_installation
You will be asked the following:
Enter current password for root (enter for none):
Set root password? [Y/n] y
Remove anonymous users? [Y/n] y
Disallow root login remotely? [Y/n] y
Remove test database and access to it? [Y/n] y
Reload privilege tables now? [Y/n] y
Make sure NGINX, PHP-FPM and MariaDB start automatically
$ sudo systemctl enable nginx
$ sudo systemctl enable php7.4-fpm
$ sudo systemctl enable mariadb
Set up your system users and create a directory to hold their websites. We’ll start with two but you can add more later
$ sudo useradd user1
$ sudo mkdir -p /home/user1/www; chown user1:user1 /home/user1/www; chmod +x /home/user1
$ sudo useradd user2
$ sudo mkdir -p /home/user2/www; chown user2:user2 /home/user2/www; chmod +x /home/user2
Create an NGINX virtual host configuration file for your domains. For this example, I will use user1.example.com and user2.example.com.
In /etc/nginx/conf.d, create two files.
/etc/nginx/sites-available/user1.example.com.conf
server {
server_name user1.example.com;
root /home/user1/www;
# Load configuration files for the default server block
include /etc/nginx/default.d/*.conf;
location / {
index index.html index.htm index.php;
}
error_page 404 /404.html;
location = /404.html {
root /usr/share/nginx/html;
}
# redirect server error pages to the static page /50x.html
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
location ~ [^/]\.php(/|$) {
fastcgi_split_path_info ^(.+?\.php)(/.*)$;
if (!-f $document_root$fastcgi_script_name) {
return 404;
}
fastcgi_pass unix:/var/run/php/user1.socket;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
/etc/nginx/sites-available/user2.example.com.conf
server {
server_name user2.example.com;
root /home/user2/www;
# Load configuration files for the default server block
include /etc/nginx/default.d/*.conf;
location / {
index index.html index.htm index.php;
}
error_page 404 /404.html;
location = /404.html {
root /usr/share/nginx/html;
}
# redirect server error pages to the static page /50x.html
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
location ~ [^/]\.php(/|$) {
fastcgi_split_path_info ^(.+?\.php)(/.*)$;
if (!-f $document_root$fastcgi_script_name) {
return 404;
}
fastcgi_pass unix:/var/run/php/user2.socket;
fastcgi_index index.php;
fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
include fastcgi_params;
}
}
Create a symlink to /etc/nginx/sites-enabled so both site configurations will be loaded.
$ sudo ln -s /etc/nginx/sites-available/user1.example.com.conf /etc/nginx/sites-enabled/user1.example.com.conf
$ sudo ln -s /etc/nginx/sites-available/user2.example.com.conf /etc/nginx/sites-enabled/user2.example.com.conf
Reload NGINX to load our changes
$ sudo systemctl reload nginx
Now we need to set up our individual PHP-FPM pools.
/etc/php/7.4/fpm/pool.d/user1.conf
[user1]
user = user1
group = user1
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
listen = /var/run/php/user1.socket
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
/etc/php/7.4/fpm/pool.d/user2.conf
[user2]
user = user2
group = user2
listen.owner = www-data
listen.group = www-data
listen.mode = 0660
listen = /var/run/php/user2.socket
pm = dynamic
pm.max_children = 5
pm.start_servers = 2
pm.min_spare_servers = 1
pm.max_spare_servers = 3
Reload php-fpm to load our changes
$ sudo systemctl reload php7.4-fpm
Allow http and https through the firewall
$ sudo ufw allow http
$ sudo ufw allow https