Issue Lets Encrypt Error - No valid ip adress

[DuerrSteidle]

Hello,

I have a problem with renewing a certificate on my server. "example.com"

I have a sudomain (test.example.com )of ths domain where everything works.

The certificate has also been issued before, but it has now expired and I just wanted to renew it. Otherwise, I have not made any changes to it.

How can I find out what is causing this?

Thanks for your help

Greetings

 

[DuerrSteidle]

Sry for asking again. But is here somebody able to help me?

 

[IgorG]

Detail: No valid IP addresses found for webmutanten.org

Please check that the domain name can be resolved to the correct IP address against some of the global DNS resolvers:

# dig webmutanten.com @8.8.8.8 +short

If it is OK, check that at least one of the authoritative NS servers is not responding.

Let's encrypt checks all authoritative domain name server to make sure it resolves. Although having at least one working NS server is enough to keep the domain running if at least one of the authoritative DNS servers is not responding, the check will fail.

Identify the authoritative Name servers:

# whois webmutanten.com | grep Name

Make sure all name servers response:

# dig webmutanten.com @NS1.NAMESERVER.COM +short

Fix the server which is not responding.

 

[DuerrSteidle]

The problem is solved when I've updated my datas.