Certificate Authority Authorization (CAA) cometh

Certificate Authority Authorization (CAA) cometh

DNS Certification Authority Authorization (CAA) Resource Record are defined in RFC6844 since January 2013. The goal of the CAA record is to give the ability to a CA to check if the CA may issue a CA certificate. Abstract from RFC6844 The Certification Authority Authorization (CAA) DNS Resource Record allows a DNS domain name holder …

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Python Internet availability

Python Internet availability

When you need to check if your Python app can reach the Internet.  You can always check if an Internet website is responding with urllib.request.urlretrieve. For instance, www. Google.com.  I have found this is not always reliable. A more reliable method is pinging one or more public DNS servers.  This snippet is a Python 3 …

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