Gain flexibility & increase privacy with WireGuard VPN – Server Side Up https://serversideup.net/courses/gain-flexibility-and-increase-privacy-with-wireguard-vpn/
Different certificate for subdomain – Server – Let’s Encrypt Community Support https://community.letsencrypt.org/t/different-certificate-for-subdomain/60404/7
How to Use Cloudflare as Free Dynamic DNS from a Linux Server + How to be a _cron_ artist :: PostApocalyptech — Creating, Inventing, Disassembling, and Destroying Everything Technological https://postapocalyptech.com/posts/use_cloudflare_ddns/
Authentication and Authorization – Apache HTTP Server Version 2.4 http://httpd.apache.org/docs/current/howto/auth.html
The Perfect Server – Ubuntu 16.04 (Xenial Xerus) with Apache, PHP, MySQL, PureFTPD, BIND, Postfix, Dovecot and ISPConfig 3.1 https://www.howtoforge.com/tutorial/perfect-server-ubuntu-16.04-with-apache-php-myqsl-pureftpd-bind-postfix-doveot-and-ispconfig/
MySQL :: MySQL 5.7 Reference Manual :: 10.1.3.2 Server Character Set and Collation https://dev.mysql.com/doc/refman/5.7/en/charset-server.html
How to Monitor a Web Application (LAMP) Hosted on AWS EC2 Using Anturis – Anturis Blog https://anturis.com/blog/how-to-monitor-web-application-hosted-on-aws-ec2/
Mysql server stops very frequently | DigitalOcean https://www.digitalocean.com/community/questions/mysql-server-stops-very-frequently
How to Send Email in WordPress using the Gmail SMTP Server http://www.wpbeginner.com/plugins/how-to-send-email-in-wordpress-using-the-gmail-smtp-server/
How to run your own e-mail server with your own domain, part 1 | Ars Technica http://arstechnica.com/information-technology/2014/02/how-to-run-your-own-e-mail-server-with-your-own-domain-part-1/1/
GoDaddy https://idp.godaddy.com/login.aspx?SPKey=GDMYAEB07&myaurl=%2Fhosting%2Fhostingaccountlist.aspx&