It produced this output: Failed authorization procedure. youtube-twitch-alerts.addons.luc-mergault.fr (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Timeout
My web server is (include version): Apache/2.4.10 (Debian)
The operating system my web server runs on is (include version): Debian GNU/Linux 8
I can login to a root shell on my machine (yes or no, or I don’t know): Yes
I have been able to access your website on ports 80/443 from different network vantage points. If you have programmatic access to install a DNS TXT record, could you try using the DNS-01 challenge?
1 - What is “DNS-01 challenge” ?
2 - Will not that break the configuration of my server ?
3 - The global server configuration or just for a specific domain ?
Here the log after trying to launch command ( I deleted some info that seemed to me private ) :
The DNS-01 challenge type involves creating a TXT record on your domain with the challenge response as its value.
No, this will not break your domain.
Depends on what you’re issuing certificates for. For example, if you issue for youtube-twitch-alerts.luc-mergault.fr, you would need to create a TXT record for _acme-challenge.youtube-twitch-alerts.luc-mergault.fr. If you wanted to generate a certificate for, say, www.youtube-twitch-alerts.luc-mergault.fr, you would need to create a TXT record for _acme-challenge.www.youtube-twitch-alerts.luc-mergault.fr.
1 - Um, ok, I’m not sure I understand ( I’m not an expert in the field ^^)
2 - Ok ok
3 - Ha okay, but why do we have to do this now that it worked properly before ? :-/
Edit 2 : I was thinking, maybe the problem comes from an Apache module or a configuration, what do you think ?
I know that during the installation of the server, I had installed one / modules, but I do not remember which ( And I also changed some things about the operation of the server ) :-/
Attempting to renew cert (amazon-wtf.luluwebmaster.fr) from /etc/letsencrypt/renewal/amazon-wtf.luluwebmaster.fr.conf produced an unexpected error: Failed authorization procedure. amazon-wtf.luluwebmaster.fr (tls-sni-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Timeout. Skipping.
The following certs could not be renewed:
/etc/letsencrypt/live/luwe.fr/fullchain.pem (failure)
/etc/letsencrypt/live/youtube-twitch-alerts.addons.luc-mergault.fr/fullchain.pem (failure)
/etc/letsencrypt/live/u.luwe.fr/fullchain.pem (failure)
/etc/letsencrypt/live/fm-motoculture.fr/fullchain.pem (failure)
/etc/letsencrypt/live/frame.luluwebmaster.fr/fullchain.pem (failure)
/etc/letsencrypt/live/amazon-wtf.luluwebmaster.fr/fullchain.pem (failure)
Other information, all domains listed changed from VPS 3 ~ 4 months ago