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If you’re joining us fresh, without having gone through the previous part and wanting to follow this tutorial, howdy! There might be some parts that are more difficult to complete without a local instance of bind (or other authoritative resolver compatible with nsupdate). We’ll talk more about this when we get there, but just know that if you want to pause and go do part one first, you may have an easier time following along.
The quick version: A LetsEncrypt of our own
This article will walk through the process of installing step-ca, a standalone certificate authority-in-a-box. We’ll then configure step-ca with an ACME provisioner—that’s Automatic Certificate Management Environment, the technology that underpins LetsEncrypt and facilitates the automatic provisioning, renewal, and revocation of SSL/TLS certificates.
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