i386 or x86_64 CentOS 6 or 7 (5 is not supported).
WHM/cPanel of at least STABLE version or newer.
Steps to Enable Let’s Encrypt for Auto SSL
Once the Auto SSL feature is released, it is only for cPanel Based SSL Certificates. But later after updating their technologies they allowed to use Let’s Encrypt as a SSL Provider.
Login into your server via SSH as a Root User.
Execute the command mentioned below
# /scripts/install_lets_encrypt_autossl_provider
Running this command will take sometimes to install the necessary RPM to support the Let’s Encrypt as a Auto SSL Provider.
Once after installation, you can see the confirmation message like below.
Installed the cpanel-letsencrypt RPM! AutoSSL can now use Let’s Encrypt.
After successful installation, you can just check in the Manage Auto SSL
In search type as Manage Auto SSL and you make a click on it.
There you can see the options like
Disabled
Let’s Encrypt
cPanel
Select the Let’s Encrypt and Click on Save.
Steps to Add SSL to a Domain in WHM
Go to Manage AUTO SSL and select the Let’s Encrypt option.
Select Manage Users.
Here you can find the list of Accounts installed in your WHM.