Generate Let’s Encrypt Certificate with DNS Challenge and Namecheap

sudo apt install certbot
sudo certbot certonly --manual --preferred-challenges dns -d "*.DOMAIN"
nslookup -type=TXT _acme-challenge.DOMAIN

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Get the Medium app

A button that says 'Download on the App Store', and if clicked it will lead you to the iOS App store
A button that says 'Get it on, Google Play', and if clicked it will lead you to the Google Play store