Episode 331

JSJ 327: "Greenlock and LetsEncrypt" with AJ O'Neal


August 21st, 2018

55 mins 8 secs

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About this Episode


  • Charles Max Wood
  • Joe Eames

Special Guests: AJ O'Neal

In this episode, the JavaScript Jabber panel talks to AJ O'Neal about Greenlock and LetsEncrypt. LetsEncrypt is a brand name and is the first of its kind in automated SSL and Greenlock does what Certbot does in a more simplified form. They talk about what led him to create Greenlock, compare Greenlock to Certbot, and what it’s like to use Greenlock. They also touch on Greenlock-express, how they make Greenlock better, and more!

In particular, we dive pretty deep on:

  • Greenlock and LetsEncrypt overview
  • LetsEncrypt is free to get your certificate
  • Why Charles uses LetsEncrypt
  • Wildcard domains
  • Certbot
  • Why he originally created Greenlock
  • Working towards home servers
  • Wanted to get HTTP on small devices
  • Manages a certificate directory
  • Greenlock VS Certbot
  • Greenlock can work stand alone
  • The best use case for Greenlock
  • Excited about how people are using his tool
  • What is it like to use Greenlock?
  • Working on a desktop client
  • Greenlock-express
  • Acme servers
  • CAA record
  • Making Greenlock better by knowing how people are using it
  • Using Greenlock-express
  • Let's Encrypt v2 Step by Step by AJ
  • And much, much more!





  • Take some time off