lease 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. crt.sh | 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:www.qimiao.cloud
I ran this command:sudo certbot certonly --agree-tos --email firstname.lastname@example.org --webroot -w -d --dry-run
It produced this output:aving debug log to /var/log/letsencrypt/letsencrypt.log
Simulating a certificate request for www.qimiao.cloud
Certbot failed to authenticate some domains (authenticator: webroot). The Certificate Authority reported these problems:
Detail: 220.127.116.11: Fetching http://www.qimiao.cloud/.well-known/acme-challenge/0vcNES8a_WKS_J0IH8E-S_jo7x5E_hneGXW3FY9BdQo: Timeout during connect (likely firewall problem)
Hint: The Certificate Authority failed to download the temporary challenge files created by Certbot. Ensure that the listed domains serve their content from the provided --webroot-path/-w and that files created there can be downloaded from the internet.
Some challenges have failed.
Ask for help or search for solutions at https://community.letsencrypt.org. See the logfile /var/log/letsencrypt/letsencrypt.log or re-run Certbot with -v for more details.
My web server is (include version):ubuntu 22.04
The operating system my web server runs on is (include version): Apache/2.4.52 (Ubuntu)
My hosting provider, if applicable, is:aliyun
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):yes
The version of my client is (e.g. output of
certbot --version or
certbot-auto --version if you're using Certbot):1.21.0-1build1