I’m new to Let’s Encrypt and I’m planning to switch over.
After I searched this forum and using Google I haven’t found an answer to my question.
I have an official domain “example.com” that is used for web, mail and other stuff.
Along this I use “corp.example.com” as my internal Windows Domain. This subdomain is not publicly available, since it only exists in my internal DNS servers.
Now, I’d like to create a Wildcard SAN certificate for:
Can this be achieved using DNS challenge when my internal subdomain cannot be resolved?
Thanks for your help!