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[root13F]

here’s one post on automating renewal

Let's Encrypt not renewing automatically? Try this

Hello, If you’re facing the issue of your Let’s Encrypt certificates not renewing automatically, here’s what you can do. (Tested on Google Cloud Compute instance running Ubuntu 16.04 LTS) Ensure you’re not using TLS-SNI-01 challenges for renewal. These are now disabled for most new certificate issuances. You can check this by viewing the contents of /etc/letsencrypt/renewal/<your domain here>.conf If it mentions the following, you’re using TLS-SNI-01 challenges: standalone_supported_cha…