Generate ssl certificates for nginx server

cert_bot.sh

# BEFORE YOU RUN THE SCRIPT MAKE SURE YOU DO THE FOLLOWING:

# check if you have site folder enabled.
# cd /etc/nginx/sites-available/$DOMAIN_NAME
# If it is enabled then open it in a editor
# sudo vim /etc/nginx/sites-available/$DOMAIN_NAME

# then look for 
# server_name $DOMAIN_NAME www.$DOMAIN_NAME;
# If not then add it and save it.



DOMAIN_NAME=yourdomainname.com

sudo apt install certbot python3-certbot-nginx


sudo nginx -t
sudo systemctl reload nginx
sudo ufw status
sudo ufw allow 'Nginx Full'
sudo ufw delete allow 'Nginx HTTP'
sudo ufw status
sudo certbot --nginx -d $DOMAIN_NAME -d www.$DOMAIN_NAME

# check the periodic run 
sudo systemctl status certbot.timer

# test dry run
sudo certbot renew --dry-run