Hello all,
I read a lot about my issue and tried a lot but nothing helped. I first recognized problems with my apache, which was not available. The log was flooded with the following errors. Over google I landed here and found out the certbot was causing this.
[Wed Sep 12 00:00:15.502607 2018] [core:notice] [pid 17700] AH00052: child pid 18391 exit signal Segmentation fault (11)
[Wed Sep 12 00:00:15.502662 2018] [core:error] [pid 17700] AH00546: no record of generation 0 of exiting child 18391
According to the mxtoolbox my DNS is fine, and my server seems to be reachable over port 443 and port 80.
It is getting late and I think I will go to sleep. Maybe you can give me a hint where this may come from?
My domain is: gnaarl.de
I ran this command: certbot renew
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
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Processing /etc/letsencrypt/renewal/gnaarl.de.conf
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Cert is due for renewal, auto-renewing...
Plugins selected: Authenticator apache, Installer apache
Renewing an existing certificate
Performing the following challenges:
tls-sni-01 challenge for gnaarl.de
tls-sni-01 challenge for mail.gnaarl.de
tls-sni-01 challenge for www.gnaarl.de
Waiting for verification...
Cleaning up challenges
Attempting to renew cert (gnaarl.de) from /etc/letsencrypt/renewal/gnaarl.de.conf produced an unexpected error: Failed authorization procedure. gnaarl.de (tls-sni-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Timeout after connect (your server may be slow or overloaded), mail.gnaarl.de (tls-sni-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Timeout after connect (your server may be slow or overloaded), www.gnaarl.de (tls-sni-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: Timeout after connect (your server may be slow or overloaded). Skipping.
All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/gnaarl.de/fullchain.pem (failure)
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All renewal attempts failed. The following certs could not be renewed:
/etc/letsencrypt/live/gnaarl.de/fullchain.pem (failure)
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1 renew failure(s), 0 parse failure(s)
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: gnaarl.de
Type: connection
Detail: Timeout after connect (your server may be slow or
overloaded)
Domain: mail.gnaarl.de
Type: connection
Detail: Timeout after connect (your server may be slow or
overloaded)
Domain: www.gnaarl.de
Type: connection
Detail: Timeout after connect (your server may be slow or
overloaded)
To fix these errors, please make sure that your domain name was
entered correctly and the DNS A/AAAA record(s) for that domain
contain(s) the right IP address. Additionally, please check that
your computer has a publicly routable IP address and that no
firewalls are preventing the server from communicating with the
client. If you're using the webroot plugin, you should also verify
that you are serving files from the webroot path you provided.
My web server is (include version): Apache 2.4
The operating system my web server runs on is (include version): debian buster/sid
My hosting provider, if applicable, is: self hosted
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
Thanks in advance to everyone reading this!