Please fill out the fields below so we can help you better. Note: you must provide your domain name to get help. Domain names for issued certificates are all made public in Certificate Transparency logs (e.g. crt.sh | example.com), so withholding your domain name here does not increase secrecy, but only makes it harder for us to provide help.
My domain is:
I ran this command:
It produced this output:
(pages and pages of log output including failures followed by successe. I do not know what parts are relevant)
My web server is (include version):
The operating system my web server runs on is (include version):
My hosting provider, if applicable, is:
I can login to a root shell on my machine (yes or no, or I don't know):
I'm using a control panel to manage my site (no, or provide the name and version of the control panel):
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you're using Certbot):
I have used certbot auto renewal for years. As shown by log entries, after the certificate auto renews and the challenges are attempted, the first few challenges fail, but eventually it works. This has been going on for years. Since it eventually works, I haven't been too concerned, but now I would like to find the root cause, in case some time it does not eventually work.
Example failures grep'd out of log
2023-05-02 23:54:37,337:WARNING:certbot.auth_handler:Challenge failed for domain spaceflight.training
2023-05-03 07:37:44,426:WARNING:certbot.auth_handler:Challenge failed for domain spaceflight.training
2023-05-03 12:10:48,088:WARNING:certbot.auth_handler:Challenge failed for domain spaceflight.training
2023-05-04 05:03:57,700:WARNING:certbot.auth_handler:Challenge failed for domain spaceflight.training
But this showing that it eventually worked on 05-04
Found the following certs:
Certificate Name: spaceflight.training
Expiry Date: 2023-08-02 16:19:44+00:00 (VALID: 87 days)
Certificate Path: /etc/letsencrypt/live/spaceflight.training/fullchain.pem
Private Key Path: /etc/letsencrypt/live/spaceflight.training/privkey.pem
There may be something obvious here, I find the log output very difficult to understand. What information should I provide for diagnosis?
Bottom line: I seek the cause of the challenge failures followed by success.