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: www.niwdedev.me
I ran this command:
sudo certbot -d www.niwdedev.me --manual --preferred-challenges dns certonly
It produced this output:
Saving debug log to /var/log/letsencrypt/letencrypt.log
Plugins selected: Authenticator manual, Installer None
Starting new HTTPS connection (1): acme-v01.api.letsencrypt.org
Obtaining a new certificate
Performing the following challenges:
dns-01 challenge for www.niwdedev.me
Please deploy a DNS TXT record under the name _acme-challenge.www.niwdedev.me with the following value:
efG0lQ8k5l9Mm3cqUEhXfDxWnBCo_gL5q9aB_COjAfs
Before continuing, verify the record is deployed.
Press Enter to Continue
Waiting for verification…
Cleaning up challenges
Failed authorization procedure. www.niwdedev.me (dns-01): urn:acme:error:dns :: DNS problem: SERVFAIL looking up CAA for niwdedev.me
IMPORTANT NOTES:
- The following errors were reported by the server:
Domain: www.niwdedev.me
Type: None
Detail: DNS problem: SERVFAIL looking up CAA for niwdedev.me
My web server is (include version): Alicloud ECS
The operating system my web server runs on is (include version): Ubuntu 16.04.6
My hosting provider, if applicable, is: Alicloud
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
The version of my client is (e.g. output of certbot --version
or certbot-auto --version
if you’re using Certbot): 0.22.2