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My domain is: mail.betschart-it.ch
I ran this command: certbot --dry-run renew
It produced this output:
Cert is due for renewal, auto-renewing...
Plugins selected: Authenticator webroot, Installer None
Renewing an existing certificate
Performing the following challenges:
http-01 challenge for imap.betschart-it.ch
http-01 challenge for smtp.betschart-it.ch
Waiting for verification...
Cleaning up challenges
Attempting to renew cert (mail.betschart-it.ch) from /etc/letsencrypt/renewal/mail.betschart-it.ch.conf produced an unexpected error: Failed authorization procedure. smtp.betschart-it.ch (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: 46.231.207.58: Invalid response from https://baikal.betschart-it.ch/.well-known/acme-challenge/OrOujaUWVCke5z3OBktQJ9B11Vc50AGOE_UCeHuj6oU: 404, imap.betschart-it.ch (http-01): urn:ietf:params:acme:error:unauthorized :: The client lacks sufficient authorization :: 46.231.207.58: Invalid response from https://baikal.betschart-it.ch/.well-known/acme-challenge/hfLBk5IR0OFNwW_bc_mP4dZ2_LLO5DutW9HWxq0sfrg: 404. Skipping.
My web server is (include version): Apache 2.4.38-3
The operating system my web server runs on is (include version): Debian 10
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don't know): yes
I'm using a control panel to manage my site (no, or provide the name and version of the control panel): no
The version of my client is (e.g. output of certbot --version
or certbot-auto --version
if you're using Certbot): 0.31.0
I had this problem before a few weeks ago (ticket 179310).
I haven't done anything since that problem was fixed. Now suddenly two certificates cannot be renewed again.
Apparently it has to do with me configuring a website that does nothing but redirect HTTP calls to HTTPS. Once I take this away, the certificates can be renewed.
I do the HTTPS redirection with the following Apache configuration:
<VirtualHost _default_:80>
Server name www.betschart-it.ch:80
Server alias betschart-it.ch:80
Include conf-available/bit-default.conf
Redirect permanent / https://www.betschart-it.ch/
ErrorLog ${APACHE_LOG_DIR}/bit_error.log
CustomLog ${APACHE_LOG_DIR}/bit_access.log combined
</VirtualHost>
This works great for any call, but obviously not for the http-01 challenge.
Can anyone explain to me?