Net::err_cert_common_name_invalid

[BlueNWild]

My domain is: https://born-cloud.duckdns.org/

Hi i have the problem that i created a openssl private certificate in order that i cant find a solution for using duckdns. After i spend some time in research i find the txt solution and could get a certificate.

But now i have the problem that the browser shows that the certificate is not safe ....

Hope you guys could help me out.

Apache 2
Ubuntu 20.04

[_az]

The IP address your domain points to (100.68.95.147) is a CGNAT address; nobody outside of your local network can connect to it.

Instead, it might help to post a screenshot of the browser warning.

[BlueNWild]

[BlueNWild]

[_az]

Thanks! Due to the way wildcard certificates work:

However, a wildcard certificate including only the name *.example.com will not be valid for example.com : the substituted label can not be empty. If you want the certificate to be valid for example.com , you also need to include example.com (i.e. without the *. part) on the certificate.

You need to make sure that you include both born-cloud.duckdns.org and *.born-cloud.duckdns.org on your certificate. https://born-cloud.duckdns.org won't be covered if you only include *.born-cloud.duckdns.org.

[BlueNWild]

Thank you for you fast response!!

I try and let you know.

[BlueNWild]

It worked! Thank you