No valid IP address found

My domain is:

I ran this command: lnmp ssl add

It produced this output:
Please enter domain(example:
Your domain:
Enter more domain name(example: *
Please enter the directory for domain /home/wwwroot/vps
Allow Rewrite rule? (y/n) n
You choose rewrite: none
Allow access log? (y/n) n
Disable access log.
Enable PHP Pathinfo? (y/n) n
Disable pathinfo.
1: Use your own SSL Certificate and Key
2: Use Let’s Encrypt to create SSL Certificate and Key
Enter 1 or 2: 2
It will be processed automatically.
/usr/local/ [found]
Starting create SSL Certificate use Let’s Encrypt…
[Fri Jun 5 16:45:29 CST 2020] Single domain=‘’
[Fri Jun 5 16:45:29 CST 2020] Getting domain auth token for each domain
[Fri Jun 5 16:45:42 CST 2020] Getting webroot for domain=‘’
[Fri Jun 5 16:45:42 CST 2020] Verifying:
[Fri Jun 5 16:45:53 CST 2020] Pending
[Fri Jun 5 16:45:59 CST 2020] error:No valid IP addresses found for
[Fri Jun 5 16:45:59 CST 2020] Please check log file for more details: /usr/local/
Let’s Encrypt SSL Certificate create failed!

My web server is (include version): nginx/1.16.1

The operating system my web server runs on is (include version): CentOS 7 7.7.1908 (Core)

My hosting provider, if applicable, is: GigsGigsCloud

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): None

Additional Info:
I was using LNMP one-click installation pack from for hosting. Some of my old domains and all of my new domains cannot acquire SSL certifications. The domain provided above is my main project and need to apply for it as soon as possible.
A record already added. I used to lookup my domain IP and it got the correct response (maybe?). The result is here:
I tried multiple hosting provider and the results are the same.
I’m not experienced but really want to resolve the problem, please help!

1 Like

Hi @bbs3223474

there is a check of your domain -

Host Type IP-Address is auth. ∑ Queries ∑ Timeout Refused yes 1 0 Refused yes 1 0 A Los Angeles/California/United States (US) - Techavenue International Ltd No Hostname found no


Only the non-authoritative check has an ip address.

Your name server has a refused answer.

Your answers correct.

Looks like your name server configuration is broken. Your delegation:

;; AUTHORITY SECTION: 3600 IN NS 3600 IN NS 3600 IN NS 3600 IN NS

So if Unboundtest picks the jp name servers, it works. If a resolver picks the hichina servers, it doesn’t work.

Update your name server configuration so the hichina servers aren’t delegated.


Thank you for your support!
I changed nameserver settings long time ago and didn’t realize that’s the issue.
All problem solved.


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