nginx_setup.sh

#!/bin/bash

domain=$1
root="/var/www/$domain/html"
block="/etc/nginx/sites-available/$domain"

# Create the Document Root directory
sudo mkdir -p $root

#Create index.html & POC file
echo '<b> The webpage is currently under maintanence, kindly visit later! </b>' > $root/index.html
echo '<! PoC of sub-domain takeover by @sumgr0!>' > $root/sumgr0.html

# Assign ownership to your regular user account
sudo chown -R $USER:$USER $root

# Create the Nginx server block file:
sudo tee $block > /dev/null <<EOF
server {
        listen 80;
        listen [::]:80;

        root /var/www/$domain/html;
        index index.html index.htm;

        server_name $domain www.$domain;

        location / {
                try_files \$uri \$uri/ =404;
        }
}
EOF

# Link to make it available
sudo ln -s $block /etc/nginx/sites-enabled/

# Test configuration and reload if successful
sudo nginx -t && sudo service nginx reload