Installing Nginx in Ubuntu 20.04 LTS

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The guide below describes how to install the Nginx web server on Ubuntu 20.04 LTS
We will do the whole thing through the console in a few minutes.

We start the terminal and update and install the nginx server

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sudo apt update

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sudo apt install nginx

We add the web server to the firewall:

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sudo ufw allow 'Nginx HTTP'

We can verify the status of the Nginx service by issuing the command:

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systemctl status nginx

An example result is shown below:

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Output
● nginx.service - A high performance web server and a reverse proxy server
   Loaded: loaded (/lib/systemd/system/nginx.service; enabled; vendor preset: enabled)
   Active: active (running) since Fri 2020-04-20 16:08:19 UTC; 3 days ago
     Docs: man:nginx(8)
Main PID: 2369 (nginx)
    Tasks: 2 (limit: 1153)
   Memory: 3.5M
   CGroup: /system.slice/nginx.service
           ├─2369 nginx: master process /usr/sbin/nginx -g daemon on; master_process on;
           └─2380 nginx: worker process

Now we will start creating the file structure for the vhost:

We create the directory structure:

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sudo mkdir -p /var/www/nasza_domena/html

We give permission:

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sudo chown -R $USER:$USER /var/www/nasza_domena/html

We set chmod

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sudo chmod -R 755 /var/www/nasza_domena

We create an example index.html of our website to validate our configuration:

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nano /var/www/nasza_domena/html/index.html

Contents:

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<html>
    <head>
        <title>Witaj na domena.pl!</title>
    </head>
    <body>
        <h1>Sukces!  Wszystko działa poprawnie!</h1>
    </body>
</html>

save the file.

We create a new vhost:

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sudo nano /etc/nginx/sites-available/nasza_domena

And the content:

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server {
        listen 80;
        listen [::]:80;
 
        root /var/www/nasza_domena/html;
        index index.html index.htm index.nginx-debian.html;
 
        server_name nasza_domena www.nasza_domena;
 
        location / {
                try_files $uri $uri/ =404;
        }
}

We're making a symbolic link:

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sudo ln -s /etc/nginx/sites-available/nasza_domena /etc/nginx/sites-enabled/

We edit the nginx configuration file

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sudo nano /etc/nginx/nginx.conf

And we uncomment the line:

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server_names_hash_bucket_size

The whole should look like:

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...
http {
    ...
    server_names_hash_bucket_size 64;
    ...
}
...

restart the nginx server, our vhost should work properly.

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sudo systemctl restart nginx

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