Combine your key and certificate files into a PEM file.

1

Create a new server.pem file and open it in a text editor.

2

Copy the contents of your server.key file and paste it in server.pem using the following format.

-----BEGIN RSA PRIVATE KEY----- 
(Your Private Key: server.key) 
-----END RSA PRIVATE KEY----- 
3

Copy the contents of your server.crt file and paste it in server.pem using the following format.

-----BEGIN CERTIFICATE----- 
  (Your Primary SSL certificate: server.crt)
-----END RSA PRIVATE KEY-----  
4

If the Certificate Authorities provided you with an intermediate or chained certificate, append the intermediate or chained certificates to the end of the public certificate file in the following format.

-----BEGIN RSA PRIVATE KEY----- 
(Your Private Key: server.key) 
-----END RSA PRIVATE KEY----- 
-----BEGIN CERTIFICATE----- 
(Your Primary SSL certificate: server.crt) 
-----END CERTIFICATE----- 
-----BEGIN CERTIFICATE----- 
(Your Intermediate certificate: DigiCertCA.crt) 
-----END CERTIFICATE----- 
-----BEGIN CERTIFICATE----- 
(Your Root certificate: TrustedRoot.crt) 
-----END CERTIFICATE-----
5

Save your server.pem file.