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Install a Thawte SGC (Server Gated Cryptography SSL) SuperCert on CPanel Mail Server

Problem

Install a Thawte SGC (Server Gated Cryptography SSL) Supercert on a Cpanel Mail Server
How do I install a Thawte SGC (Server Gated Cryptography SSL) Supercert on a Cpanel Mail Server
How to install a Thawte SGC (Server Gated Cryptography SSL) Supercert on a Cpanel Mail Server

Solution

To install the Thawte SGC (Server Gated Cryptography SSL) certificate into CPanel Mail Server, perform the following steps:
 
Fetch your certificate
 
1. You will receive an email when your certificate is issued.
2. Download the Thawte Certificate with the solution: SO13187
3. Copy and Paste the  Thawte certificate in the X509 format to Notepad and save as a cert.pem extension.
4. You will also be required to download the intermediate certificate. It is called the Thawte SGC (Server Gated Cryptography SSL) SuperCert Intermediate CA certificate, INFO1384 and can be downloaded from:  and save as intermediate.pem
 
Install your certificate

1. Create a new file (yourcert.pem) consisting of your private key and your certificate file:
 
-----BEGIN RSA PRIVATE KEY-----
 
[encoded key]
 
-----END RSA PRIVATE KEY-----
 
[empty line]
 
-----BEGIN CERTIFICATE-----
 
[encoded certificate]
 
-----END CERTIFICATE-----
 
[empty line]
 
3. Then save the file as yourcert.pem in the /etc/ssl/certs/ directory.

4. Copy the intermediate.pem file to the /etc/ssl/certs/ directory.

5. When you are setting up the SSL support you will need to access the stunnel configuration file which will probably be available at:
 
etc/stunnel/default/stunnel.conf

6. Open the stunnel.conf and locate the following directives (they may be commented out by #). It may be necessary to add the above directives if they are not present.
 
verify=3

CAfile=/etc/ssl/certs/intermediate.pem

cert=/etc/ssl/certs/yourcert.pem
 
7. Restart your web / mail service for the installation to be completed. In some instances, it may be necessary to physically restart the actual machine.