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seanknox/letsencrypt_and_ngrok_on_osx.md

Last active March 14, 2020 21:24
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letsencrypt_and_ngrok_on_osx.md

Prerequisites:

You'll need:

  1. A paid ngrok account
  2. A reserved domain on ngrok, e.g. the FQDN you're generating certs for
  3. A registed domain and access to change DNS records

How to

  1. Install certbot and ngrok
  • brew cask install certbot ngrok
  1. Login to ngrok:
  • ngrok authtoken <YOUR_AUTH_TOKEN>
  1. Define a reserved domain in ngrok for the FQDN in question
  2. Update DNS to point at ngrok CNAME
  3. Start ngrok HTTP tunnel for hostname on port 80
  • ngrok http -hostname=your.fqdn.com 80
  1. Letsencrypt standalone webserver using HTTP port 80
  • sudo certbot certonly --standalone-supported-challenges http-01
  1. Generated certificates will be in /etc/letsencrypt/archive/your.fqdn.com
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