Configuring Let’s Encrypt SSL Cert for Nginx on Ubuntu 18.04
How-to guide on setting up a free SSL cert for Nginx on Ubuntu Server 18.04. Tested on a DigitalOcean Droplet.
Let’s Encrypt Error: “Client with the currently selected authenticator does not support any combination of challenges that will satisfy the CA.”
Configuring Let’s Encrypt SSL Cert for Apache on Ubuntu 18.04
How-to guide on setting up a free SSL cert for Apache on Ubuntu Server 18.04. Tested on a DigitalOcean Droplet.
How to Configure Let’s Encrypt SSL on Apache (Ubuntu 16.04 / 17.10)
How to Test a Server for TLS 1.2/1.3 Support in Linux
How to detect which version of TLS a server is running from Linux command line. Use openssl to test for TLS 1.2 or 1.3.