Using OpenVPN client with Ubuntu 16.04 server
Get signed SSL certificates using Let’s Encrypt. Using DNS challenge with the
acme.sh script as proof of ownership you do not even need to expose a server to the public internet!
Ubuntu Canonical Livepatch Service - free livepatching of running kernels without a reboot.
Caching static WordPress HTML with CloudFlare for free. Faster pageload for served HTML.
Install and configure the latest stable LXD on Ubuntu 16.04 LTS
Migrate OpenVZ container to another host without node access
Getting started with LXD 2.0 container hypervisor
HTTP/2 Server Push with NGINX, CloudFlare and WordPress
Free email forward with Mailgun.com