I’m using Bitnami WordPress with NGINX and SSL Stack For Google Cloud Platform. It uses a Lego package…Let’s Encrypt client and ACME library written in Go.
I have several websites using this above setup. I received an email “Action required: Let’s Encrypt certificate renewals” for only ONE of my current websites.
So I have two questions:
1 - How do I know if my setup is using “TLS-SNI-01”? Is there a way to verify? If I only received one email for one domain, does this mean the other ones are fine?
2 - How do I stop using “TLS-SNI-01” for the above mentioned setup? Do I simply upgrade the Lego package?