I want to generate a Let's Encrypt certificate for my server, so that I can renew it automatically. I ran the command certbot --nginx -d testpbx.info.eu and got the following error.
certbot --nginx -d testpbx.info.eu
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
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Please read the Terms of Service at You must
agree in order to register with the ACME server at
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(A)gree/(C)ancel: a
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Would you be willing to share your email address with the Electronic Frontier
Foundation, a founding partner of the Let's Encrypt project and the non-profit
organization that develops Certbot? We'd like to send you email about our work
encrypting the web, EFF news, campaigns, and ways to support digital freedom.
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(Y)es/(N)o: n
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for testpbx.info.eu
Using default addresses 80 and [::]:80 ipv6only=on for authentication.
nginx: [warn] duplicate network "::0/0", value: "0", old value: "1" in /etc/nginx/sites-enabled/3cxpbx:14
nginx: [warn] "ssl_stapling" ignored, issuer certificate not found for certificate "/var/lib/3cxpbx/Bin/nginx/conf/Instance1/testpbx.info.eu-crt.pem"
Waiting for verification...
Cleaning up challenges
nginx: [warn] duplicate network "::0/0", value: "0", old value: "1" in /etc/nginx/sites-enabled/3cxpbx:14
nginx: [warn] "ssl_stapling" ignored, issuer certificate not found for certificate "/var/lib/3cxpbx/Bin/nginx/conf/Instance1/testpbx.info.eu-crt.pem"
Failed authorization procedure. testpbx.info.eu (http-01): urn:ietf:params:acme:error:connection :: The server could not connect to the client to verify the domain :: 185.203.28.51: Fetching Timeout during connect (likely firewall problem)
IMPORTANT NOTES: - The following errors were reported by the server: Domain: testpbx.info.eu Type: connection Detail: 185.xxx.xx.xx: Fetching 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. - Your account credentials have been saved in your Certbot configuration directory at /etc/letsencrypt. You should make a secure backup of this folder now. This configuration directory will also contain certificates and private keys obtained by Certbot so making regular backups of this folder is ideal.I would like to point out that my domain name is entered correctly and that the A DNS record for this domain contain the correct IP address. contain the correct IP address, I also ping 8.8.8.8.
