Before you begin, you should have installed a Debian based distribution onto your Pi. You can learn on how to install Raspbian by following previous article.
The required packages are available in Raspbian default repositories, so the installation is pretty straight forward.
To install and launch Nginx run the command
sudo apt-get install nginx
In order to use PHP with Nginx we will use PHP-FPM
sudo apt-get install php-fpm
Then run the following command (this will install MariaDB by default instead of MySQL)
sudo apt install mysql-server php-mysql
Type the Pi’s IP address in your browser and you should see a page saying “Welcome to nginx!”.
We need to make some changes to the default server file
sudo nano /etc/nginx/sites-available/default
For the PHP processing we need to add index.php as the first value of our index directive, and fastcgi-php.conf snippet with the socket associated with php-fpm.
After these changes Nginx default server file should look something like this
Static IP address
To easily access your Pi, without having to look for its IP every time, we’re going to set a static IP address. First, check your current PI’s IP address
Then we need to edit the dhcpcd.conf file
sudo nano /etc/dhcpcd.conf
And enter the following (change 192.168.1.48 to your IP address)
interface eth0 static ip_address=192.168.1.48/24 static routers=192.168.1.1 static domain_name_servers=192.168.1.1 interface wlan0 static ip_address=192.168.1.48/24 static routers=192.168.1.1 static domain_name_servers=192.168.1.1
Close the configuration file and restart your Pi with its new static IP address
Open up your favorite browser and go to the router’s default gateway address (e.g. http://192.168.1.1). After logging into your router you should see something similar to this.
To enable port forwarding, on the Asus RT-N12+ router, click on “WAN” on the left hand side and then “Virtual Servers/Port Forwarding” at the top. Here you will be able to forward any port you need on your Pi.
Please keep in mind your local ISP or modem/router could be blocking certain ports, such as port 80 or 22. After saving, you can check if port forwarding was successful using portchecktool.com website.
We are going to use simple bash script that fetches your current IP address, via a web API, and if it has changed then send the new IP address to your Namecheap Dynamic DNS host.
You need to change the following config variables
Your Dynamic DNS password is located unter Domain List >> Manage >> Advanced DNS tab >> Dynamic DNS. If it is not enabled, enable it to check the password.
You can setup a Cron job to automate the whole process, just include the script in your cron file
and run the script e.g. every fifteen minutes
*/15 * * * * /path/to/update-namecheap-ddns.sh
That’s it! Now, you should be able to access the web server via domain name.
You can also check Namecheap official guideline of setting up Dynamic DNS using your browser.