2017-07-14 Add Subdomain on Nginx, Error, Firewall with UFW, Nginx php on Ubuntu 14.04 https://www.digitalocean.com/community/tutorials/how-to-install-linux-nginx-mysql-php-lemp-stack-on-ubuntu-14-04https://nabtron.com/add-subdomain-nginx/https://www.quora.com/How-can-I-fix-this-Nginx-errorhttps://www.digitalocean.com/community/tutorials/how-to-set-up-nginx-server-blocks-virtual-hosts-on-ubuntu-16-04Firewall with UFW on Ubuntu 14.04https://www.digitalocean.com/community/tutorials/how-to-set-up-a-firewall-with-ufw-on-ubuntu-14-04