System diagnostic suddenly gives me: Found invalid certificate '/etc/univention/letsencrypt/signed_chain.crt'

[Mornsgrans]

@tpfann

• wget -O /etc/univention/letsencrypt/r11.pem https://letsencrypt.org/certs/2024/r11.pem
• ln -s /etc/univention/letsencrypt/r11.pem /usr/local/share/ca-certificates/r11.crt
• update-ca-certificates --fresh

This did not work for me.

But the commands at the end of the posting here:

Letsencrypt verification failed

One of my UCS running Let’s Encrypt app generated the same warning yesterday after an update: /etc/univention/letsencrypt/signed_chain.crt: verification failed Online search brought back Let’s Encrypt earlier announcements about changes to their intermediate CA certificates. https://letsencrypt.org/2024/03/19/new-intermediate-certificates.html https://letsencrypt.org/2024/04/12/changes-to-issuance-chains My current LE certificate was valid, but the absence of the R10 intermediate certific…

did it.