How to Generate a Self-Signed Certificate in cPanel

How to Generate a Self-Signed Certificate in cPanel.

  1. Log in to cPanel.

  2. In the Security section of the cPanel home screen, click SSL/TLS Manager.

  3. Under Private Keys (KEY), click Generate, view, upload, or delete your private keys. The Private Keys page appears.

  4. Under Generate a New Private Key, confirm that the Key Size is set to 2,048 bits.

  5. In the Description text box, type a descriptive name for the key, such as Self-signed cert key.

  6. Click Generate. cPanel generates and displays the private key.

  7. Click Return to SSL Manager.

  8. From the SSL/TLS Manager page, under Certificates (CRT), click Generate, view, upload, or delete SSL certificates. The Certificates page appears.

  9. Under Generate a New Certificate, in the Key list box, select the description for the private key you generated.

  10. In the Domains text box, type the domain that you want to secure with the self-signed certificate, such as test.example.com.

  11. Complete the remaining fields for the certificate. Make sure you use the correct two-letter country code (for example, US or FR).

  12. Click Generate. cPanel generates and displays the self-signed certificate.

  13. Click Return to SSL Manager.

  14. From the SSL/TLS Manager page, under Install and Manage SSL for your site (HTTPS), click Manage SSL sites. The Manage SSL Hosts page appears.

  15. Under Install an SSL Website, click Browse Certificates, select the certificate you generated in step 12, and then click Use Certificate. cPanel fills in the Certificate (CRT) and Private Key (KEY) fields automatically. Because this is a self-signed certificate, the Certificate Authority Bundle (CABUNDLE) field remains blank.

  16. In the Domain list box, select the domain you want to secure with the certificate.

  17. Click Install Certificate. cPanel installs the certificate on the server and enables SSL. When the process is complete, you receive an SSL Host Successfully Installed message.

  18. Click OK. You can now securely access the specified domain by using the https:// prefix in a web browser, but you will receive a warning message about the self-signed certificate.

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