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How to install Let's Encrypt SSL certificate
This guide assumes the following:
You have already
created the DNS zone
.
You have already
created the website
.
Inside ISPConfig web hosting control panel perform these tasks:
Go to Sites module
Click on the site you want the certificate
Check the Let's Encrypt SSL field
Click on Save button
Just in case the Let's Encrypt SSL certificate is not being issued:
Try again later if the SSL certificate might not being issued due to DNS caching
Make sure your website is reachable in all its aliases, e.g: www.yourdomain.tld
If there is a
CAA record in the DNS zone
, make sure it includes letsencrypt.org
You can test cypher strength and quality using
SSL Server Test
.