It produced this output:
Saving debug log to /var/log/letsencrypt/letsencrypt.log
Plugins selected: Authenticator nginx, Installer nginx
Obtaining a new certificate
Performing the following challenges:
http-01 challenge for example.eu
Waiting for verification...
Challenge failed for domain example.eu
http-01 challenge for example.eu
Cleaning up challenges
Some challenges have failed.
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: example.eu
Type: connection
Detail: Fetching
http://example.eu/.well-known/acme-challenge/dkDTnSTMDoUBIrYmALnKNs_5BVsWJdY_BNQxGZOv_SA:
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): VPS
The operating system my web server runs on is (include version): Ubuntu 20.04 LTS
I can login to a root shell on my machine (yes or no, or I don't know): Yes
The version of my client is (e.g. output of certbot --version or certbot-auto --version if you're using Certbot): certbot 0.40.0
MY NGINX CONFIGURATION (/etc/nginx/sites-available/example.eu)
server {
server_name example.eu;
listen 80;
location / {
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Proto $scheme;
client_max_body_size 0;
add_header Strict-Transport-Security "max-age=31536000; includeSubDomains" always;
add_header Referrer-Policy "same-origin";
proxy_pass http://10.8.0.13:5555;
}
}
P.S. I linked "example.eu" to /etc/nginx/sites-enabled/
What is more, firewall was disabled, so nothing had to block any traffic.
