Nginx Tutorial with HTTPS on Ubuntu

Tutorial for setting up a Nginx web server with HTTP over TLS (HTTPS) on Ubuntu.

Installing/Uninstalling Nginx

To install Nginx type the following command into your terminal:
sudo apt install nginx

To remove Nginx type the following command into your terminal:
sudo apt remove nginx

Directories

Website Root Directory:
/var/www

Server Configuration File Directory:
/etc/nginx/sites-available

Server Configuration Symbolic Link Directory:
/etc/nginx/sites-enabled

TLS/SSL Certificate & Key Directory:
/etc/nginx/ssl

Administrative Commands

Starting the Server:
sudo systemctl start nginx
sudo service nginx start

Stopping the Server:
sudo systemctl stop nginx
sudo service nginx stop

Restarting the Server:
sudo systemctl restart nginx
sudo service nginx restart

Reloading the Server:
sudo systemctl reload nginx

Checking the Server Status:
sudo systemctl status nginx
sudo service nginx status

Disable the Server at Boot-Up:
sudo systemctl disable nginx

Enable the Server at Boot-Up:
sudo systemctl enable nginx

Private Key & Certificate Generation Commands

Generate Self-Signed Private Key (2048 Bit Key Length) & Certificate:
sudo openssl req -x509 -nodes -days 365 -newkey rsa:2048 -keyout domainName.key -out domainName.crt

Generate Diffie-Hellman Parameters (2048 Bit Key Length):
sudo openssl dhparam -out dhparam.pem 2048