Install NGINX, PHP, MySQL, on Ubuntu 18.04

root@desktop:~# sudo -su
root@desktop:~# apt update
root@desktop:~# apt install nginx

root@desktop:~# apt install mysql-server-5.7
root@desktop:~# mysql_secure_installation
# to login in your mysql type
root@desktop:~# mysql -uroot -p
# to change authentication plugin for root password
root@desktop:~# mysql
mysql> SELECT user,authentication_string,plugin,host FROM mysql.user;
+------------------+-------------------------------------------+-----------------------+-----------+
| user             | authentication_string                     | plugin                | host      |
+------------------+-------------------------------------------+-----------------------+-----------+
| root             |                                           | auth_socket           | localhost |
+------------------+-------------------------------------------+-----------------------+-----------+
mysql> ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY 'PASSWORD';
mysql> FLUSH PRIVILEGES;
mysql> SELECT user,authentication_string,plugin,host FROM mysql.user;
+------------------+-------------------------------------------+-----------------------+-----------+
| user             | authentication_string                     | plugin                | host      |
+------------------+-------------------------------------------+-----------------------+-----------+
| root             | *81F5E21E35407D884A6CD4A731AEBFB6AF209E1B | mysql_native_password | localhost |
+------------------+-------------------------------------------+-----------------------+-----------+
mysql> exit

root@desktop:~# apt install php-fpm php-mysql
root@desktop:~# apt install php-curl php-gd php-intl php-mbstring php-soap php-xml php-xmlrpc php-zip
root@desktop:~# systemctl restart php7.2-fpm

root@desktop:~# nano /etc/nginx/sites-available/default
server {
    # Add index.php to the list if you are using PHP
    index index.php index.html index.htm index.nginx-debian.html;

    location / {
        # First attempt to serve request as file, then
        # as directory, then fall back to displaying a 404.
        # try_files $uri $uri/ =404;
        try_files $uri $uri/ index.php$is_args$args;
    }

    # pass PHP scripts to FastCGI server
    location ~ \.php$ {
        include snippets/fastcgi-php.conf;
        fastcgi_pass unix:/var/run/php/php7.2-fpm.sock;
    }

    # deny access to .htaccess files, if Apache's document root
    # concurs with nginx's one
    location ~ /\.ht {
        deny all;
    }

    location = /favicon.ico {
        log_not_found off;
        access_log off;
    }

    location = /robots.txt {
        log_not_found off;
        access_log off;
        allow all;
    }

    
    location ~* \.(css|ico|js|jpg|jpeg|gif|png|bmp|wav|flac|ogg|mp3|ttf|eot|svg|woff|otf)$ {
        add_header        Cache-Control public;
        add_header        Cache-Control must-revalidate;
        expires           max;
        log_not_found     on;
    }

}

# save file and test changes
root@desktop:~# nginx -t
root@desktop:~# systemctl reload nginx

root@desktop:~# apt-get install phpmyadmin
press (y)
press (TAB) + (ENTER)
press (ENTER)
press (PASSWORD)
root@desktop:~# ln -s /usr/share/phpmyadmin /var/www/html
root@desktop:~# phpenmod mcrypt
root@desktop:~# systemctl restart php7.2-fpm

root@desktop:~# chown -R www-data:www-data /var/www/html

root@desktop:~# add-apt-repository ppa:certbot/certbot
root@desktop:~# apt install python-certbot-nginx
root@desktop:~# certbot --nginx -d domain.com -d www.domain.com
root@desktop:~# certbot renew --dry-run