This report will include the personal data we have about you, provided to you in a structured, commonly used, and portable format. If you have a web site on an internal network that is not accesible by a public URL, then the most popular HTTP-01 challenge for Let's Encrypt is not going to work. Let's Encrypt - and publicly trusted certificate authorities in general, due to Chrome's requirements - submit all issued certificates to public certificate transparency logs. Generate and configure a Let's Encrypt certificate - Bitnami This means internal domain names with a .local TLD won’t work. Let’s Encrypt offers Domain Validation (DV) certificates. LetsEncrypt –expanded command is looking for the verification @ endpoint :80 (insecure) which gets redirected by Nginx to :443 (secure) but because this has an expired certificate the renewal will fail.. here is the info in the lets encrypt > validation section for IP address Code: [Select] The FQDN's used in your certificate must currently point to one or more official IP addresses. The probably explanation that comes to mind, is that you have, or had, multiple Certbot versions present. Start off by heading to SSL For Free. Privacy Policy - Let's Encrypt Expand HOST → Sites on the left pane, you will find the default web site. Undo step 2 by pointing your DNS A record back at your SSL VPN IP Moreover, Let's Encrypt policy is to not issue SSL certificates for IP addresses, therefore you won't be able to use the certificate to a server that it's reachable only thought its IP address. If there are many IP’s and they are constantly changing, not public knowledge then that becomes much more difficult, especially without you noticing that lots of your traffic is suddenly been diverted. Step 1: Install the Lego client. Let’s encrypt issues a … We are going to use DNS as the method of verifying that we are in possession of the domain and may therefore – as the authorized users – may deploy the certificate they are so generously creating. First, download the Let’s Encrypt client, certbot. Most often you’ll only need two of these files: privkey.pem: This is the private key for the certificate.This needs to be kept safe and secret, which is why most of the /etc/letsencrypt directory has very restrictive permissions and is … Update: Using Free Let’s Encrypt SSL/TLS Certificates with NGINX