Overview

This guide provides step-by-step instructions for installing SSL certificates on your server using ISPConfig. The process involves generating a Certificate Signing Request (CSR), obtaining the certificate from a Certificate Authority (CA), and then activating it within ISPConfig.

Step 1: Generate a CSR Code

1. Access ISPConfig: Log in to your ISPConfig control panel.
2. Navigate to SSL Settings: Go to the SSL/TLS section under server settings.
3. Create a New Certificate:
   • Provide a name for the certificate.
   • Choose the domain or hostname that will be secured by the SSL certificate.
   • Select the bit length (2048 bits recommended for security).
4. Generate CSR: Click "Generate" to create the CSR.

Step 2: Obtain Your SSL Certificate

1. Download CSR: The CSR will be available in the SSL/TLS section after generation.
2. Submit to CA: Upload the CSR to a trusted Certificate Authority like Let's Encrypt or a commercial provider.
3. Receive Certificates: Once issued, download your certificate files (.crt and .ca-bundle) from the CA.

Step 3: Activate SSL in ISPConfig

1. Upload Certificates:
   • Go to the SSL/TLS section again.
   • Click "Add" to upload your .crt and .ca-bundle files.
2. Assign Domains: Associate the certificate with the appropriate domain(s) by selecting them from the dropdown list.
3. Save Changes: Ensure all details are correct before saving.

Step 4: Verify SSL Installation

1. Test HTTPS: Access your website using HTTPS to confirm the SSL is active.
2. Check Logs: Review server logs for any errors related to SSL/TLS connections.

Additional Resources

• Generating a CSR on ISPConfig
• How to install SSL certificates