How to update Lets Encrypt Root Certificate
Lets Encrypt's root certificate expired on October 1, 2021, which causes the cert renewal or creation to fail with a message "No response from destination server. Please try again later."
To Fix follow the following instruction which worked for me on my Xpenology box running DSM 6.2.2-24922
1. Download root cert from LetsEncrypt website: https://letsencrypt.org/certificates/
a. Download Active Root Cert “Pem” file,
b. Open with text editor, and co
Good catch, both scripts assume that you run them s root. Copy/paste should work.
The problem consists of two factors 1) the certicates themself (fixed by the script in the first link if run as root), 2) an openssl library that is able to handle the used algorithms of the new issued Letsencrypt certificates, which at least requires openssl libraries v1.1.0 - DSM6.2.3u3 has 1.0.2-k. Sorry to disapoint -> there is no way to fix this, except Synology fixes it.