Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator manual, Installer None An unexpected error occurred:

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. |, 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: sudo certbot --manual-auth-hook --preferred-challenges dns certonly -d

It produced this output: Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator manual, Installer None An unexpected error occurred:

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): certbot 0.31.0

We should have a look at this file:

That is a very old version.
You should follow the recommended installation instructions:
Certbot (


This command also does not make sense. After updating Certbot like @rg305 suggested, please

(1) Make sure you're using up-to-date documentation and understand it properly.
(2) If you don't understand the documentation that you're following, please feel free to ask questions here in order to clarify your understanding.
(3) When asking for help here, please include the entire output of your Certbot command.


Especially so given it looks like a running Apache system on port 80

2023-10-10 22:15:44,943:DEBUG:certbot.plugins.selection:Selected authenticator <certbot.plugins.webroot.Authenticator object at 0x7f6629815400> and installer None
2023-10-10 22:15:44,943:INFO:certbot.plugins.selection:Plugins selected: Authenticator webroot, Installer None
2023-10-10 22:15:44,949:DEBUG:certbot.main:Picked account: <Account(RegistrationResource(body=Registration(key=None, contact=(), agreement=None, status=None, terms_of$
2023-10-10 22:15:44,951:DEBUG:acme.client:Sending GET request to
2023-10-10 22:15:44,953:DEBUG:urllib3.connectionpool:Starting new HTTPS connection (1):
2023-10-10 22:15:44,956:DEBUG:certbot.log:Exiting abnormally:
Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/", line 144, in _new_conn
    (, self.port), self.timeout, **extra_kw)
  File "/usr/lib/python3/dist-packages/urllib3/util/", line 60, in create_connection
    for res in socket.getaddrinfo(host, port, family, socket.SOCK_STREAM):
  File "/usr/lib/python3.6/", line 745, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno -3] Temporary failure in name resolution

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "/usr/lib/python3/dist-packages/urllib3/", line 601, in urlopen
  File "/usr/lib/python3/dist-packages/urllib3/", line 346, in _make_request
  File "/usr/lib/python3/dist-packages/urllib3/", line 852, in _validate_conn
  File "/usr/lib/python3/dist-packages/urllib3/", line 298, in connect
    conn = self._new_conn()
  File "/usr/lib/python3/dist-packages/urllib3/", line 153, in _new_conn
    self, "Failed to establish a new connection: %s" % e)

Next to the other already raised issues, here's your current issue:

DNS is not working.


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