vrdvishwas 
Please follow complete documentation from this link.
https://www.digitalocean.com/community/tutorials/how-to-install-nginx-on-ubuntu-20-04
Step 1 – Installing Nginx
sudo apt update
sudo apt install nginxStep 2 – Adjusting the Firewall
sudo ufw app list
sudo ufw allow 'Nginx HTTP'
sudo ufw statusStep 3 – Checking your Web Server
systemctl status nginx
http://your_server_ip
Step 4 – Managing the Nginx Process
To stop your web server, type:
sudo systemctl stop nginx
To start the web server when it is stopped, type:
sudo systemctl start nginx
To stop and then start the service again, type:
sudo systemctl restart nginx
If you are only making configuration changes, Nginx can often reload without dropping connections. To do this, type:
sudo systemctl reload nginx
By default, Nginx is configured to start automatically when the server boots. If this is not what you want, you can disable this behavior by typing:
sudo systemctl disable nginx
To re-enable the service to start up at boot, you can type:
sudo systemctl enable nginx
Step 5 – Setting Up Server Blocks (Recommended)
sudo mkdir -p /var/www/your_domain/html
sudo chown -R $USER:$USER /var/www/your_domain/html
sudo chmod -R 755 /var/www/your_domain
nano /var/www/your_domain/html/index.htmlsudo nano /etc/nginx/sites-available/your_domain
server {
listen 80;
listen [::]:80;
root /var/www/your_domain/html;
index index.html index.htm index.nginx-debian.html;
server_name your_domain www.your_domain;
location / {
try_files $uri $uri/ =404;
}
}
sudo ln -s /etc/nginx/sites-available/your_domain /etc/nginx/sites-enabled/
sudo nano /etc/nginx/nginx.conf
...
http {
...
server_names_hash_bucket_size 64;
...
}
...
sudo nginx -t
sudo systemctl restart nginx
