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. https://crt.sh/?q=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: rahma.dyndns.org
I ran this command:
sudo ./letsencrypt-auto --apache -d rahma.dyndns.org
It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log Plugins selected: Authenticator apache, Installer apache Obtaining a new certificate Performing the following challenges: http-01 challenge for rahma.dyndns.org Waiting for verification... Cleaning up challenges Failed authorization procedure. rahma.dyndns.org (http-01): urn:acme:error:connection :: The server could not connect to the client to verify the domain :: Fetching http://rahma.dyndns.org/.well-known/acme-challenge/glRoScTSYCTLDnyar9lHVR5US7vrTC8lay8GPhPJ_PA: Timeout during connect (likely firewall problem) IMPORTANT NOTES: - The following errors were reported by the server: Domain: rahma.dyndns.org Type: connection Detail: Fetching http://rahma.dyndns.org/.well-known/acme-challenge/glRoScTSYCTLDnyar9lHVR5US7vrTC8lay8GPhPJ_PA: Timeout during connect (likely firewall problem) 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): apache2 v. 2.4.18-2ubuntu3.8
The operating system my web server runs on is (include version): Ubuntu 16.04 (64-bit)
My hosting provider, if applicable, is: self
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