Failing to update certificate

I had to update my Next Cloud Jail which wiped my Certbot information. Got it all rebuilt, however, when i try to update my cert, I get the error below. I am guessing I need a new CNAME, but having issues determining what update needs to happen. Typically, Cerbot tells me the CNAME info.
Any help would be appreciated.

My domain is:

I ran this command: certbot --nginx -d

It produced this output:

An RSA certificate named already exists. Do you want to update
its key type to ECDSA?

(U)pdate key type/(K)eep existing key type: u
Renewing an existing certificate for

Certbot failed to authenticate some domains (authenticator: nginx). The Certificate Authority reported these problems:
Type: connection
Detail: 123.456.789.321: Fetching Timeout during connect (likely firewall problem)

Hint: The Certificate Authority failed to verify the temporary nginx configuration changes made by Certbot. Ensure the listed domains point to this nginx server and that it is accessible from the internet.

My web server is (include version):

The operating system my web server runs on is (include version): TRUENAS v13

My hosting provider, if applicable, is: GLBB

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): 2.4

Port 80 needs to be open for the http-01 challenge. I'm assuming you want a certificate for and that hostname (IP address is not responding on port 80.

(Same goes for your apex domain by the way.)

See Best Practice - Keep Port 80 Open - Let's Encrypt for more info.


Yea....I feel like a dumbass, figured it out. I redirected port 80 to do tests on another server. When i was ready to update my cert, I just enabled it in my firewall entry for port 80 and didn't pay attention to the destination. Thanks for responding, I appreciate the assist.


You may also want to check if there are any firewall or security settings on your server or network

This topic was automatically closed 30 days after the last reply. New replies are no longer allowed.