How to Install an SSL Certificate in WHM/cPanel

This guide explains how to install a commercial SSL certificate on a WHM/cPanel server. It also covers AutoSSL, which provides FREE SSL certificates for most domains.

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Before You Begin: Free SSL via AutoSSL

Fast2host includes FREE SSL certificates for all domains hosted on our cPanel servers using AutoSSL (powered by Sectigo or Let’s Encrypt).

You only need this full guide if:

• You require a Wildcard, OV, or EV certificate.
• You need a specific SSL provider.
• Your website or client has compliance requirements.

Enable AutoSSL

WHM → SSL/TLS → Manage AutoSSL

Once enabled, AutoSSL automatically issues and renews free SSL certificates.

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Step 1: Check IP or SNI Settings

Modern SSL certificates support SNI, so a dedicated IP is usually not required. However, older premium certificates may still require one.

WHM → IP Functions → Show IP Address Usage

If needed, assign a dedicated IP and reduce TTL to 600 seconds to minimise downtime.

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Step 2: Generate a CSR (Certificate Signing Request)

Go to:

WHM → SSL/TLS → Generate a SSL Certificate and Signing Request

Fill in the required fields including domain, company information, and key size (2048 bits recommended). Click Create.

You will receive:

1. CSR
2. Private Key
3. Self-signed certificate

Save the CSR and key—they will be needed later.

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Step 3: Order the SSL Certificate

A) Order Through Fast2host

Open a support ticket with your domain name. We can generate your CSR, validate the certificate, and install it for you.

B) Order From Another SSL Provider

Paste your CSR into the provider's order form. After validation, you will receive:

• Certificate (CRT)
• CA Bundle (intermediate certificates)

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Step 4: Install the SSL Certificate

In WHM go to:

WHM → SSL/TLS → Install a SSL Certificate and Setup the Domain

Paste the following:

• CRT (Certificate)
• Private Key
• CA Bundle

Click Submit to install.

Test the SSL using:

https://yourdomain.com

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