DNS Concepts
Adding a domain you own to your DigitalOcean account lets you manage the domain’s DNS records with the control panel and API. Domains you manage on DigitalOcean also integrate with DigitalOcean Load Balancers and Spaces to streamline automatic SSL certificate management.
The DigitalOcean Community has several conceptual overviews of DNS and related concepts.
DNS, or the domain name system, is an essential component of modern internet communication. It allows us to reference computers by names instead of IP addresses. In this series, we will cover the basic ideas behind DNS so that you feel comfortable working with it. Afterwards, we will walk through various ways that you can gain greater control over your domains and DNS resolution.
digitalocean.com/community
This guide covers some fundamental DNS concepts that will help you hit the ground running with your DNS configuration. After tackling this guide, you should be ready to set up your domain name with DigitalOcean or set up your very own DNS server.
digitalocean.com/community
Let’s Encrypt is an open and automated certificate authority that uses the ACME (Automatic Certificate Management Environment ) protocol to provide free TLS/SSL certificates to any compatible client. These certificates can be used to encrypt communication between your web server and your users. This tutorial discusses certificate authorities (CAs) and how Let’s Encrypt works, then review a few popular ACME clients.
digitalocean.com/community