Buy the cheapest one


Paid by paypal, then

Step 1.
on comodo, need Input CSR (Certificate Signing Request)

1.1 cpanel > SSL / TLS > click SSL certificate signing request

1.2 cpanel > SSL / TLS > click SSL certificate signing request

1.3 fill out: Generate a New Certificate Signing Request (CSR)

1.4 copy CSR
-----BEGIN CERTIFICATE REQUEST-----
-----END CERTIFICATE REQUEST-----

1.4 copy private key
-----BEGIN RSA PRIVATE KEY-----
-----END RSA PRIVATE KEY-----

1.5 paste on comodo page, then continue

Step 2. domain verification
2.1


2.2

2.3
