CREATE CERTIFICATE can load a certificate from a file, a binary constant, or an assembly. This statement can also generate a key pair and create a self-signed certificate. The Private Key must be. Privkey.pem is the 'key' file. Sometimes it is improperly named as cert.key or example.com.key. Fullchain.pem is your 'crt' file. Sometimes it is improperly named as example.com.crt. CRT/KEY Bundle. Bundle.pem would be made like so: cat fullchain.pem privkey.pem bundle.pem. HAProxy is the only server that I know of that uses bundle.pem.
Before you can order an SSL certificate, it is recommended that you generate a Certificate Signing Request (CSR) from your server or device. Learn more about SSL certificates »
A CSR is an encoded file that provides you with a standardized way to send DigiCert your public key as well as some information that identifies your company and domain name. When you generate a CSR, most server software asks for the following information: common name (e.g., www.example.com), organization name and location (country, state/province, city/town), key type (typically RSA), and key size (2048-bit minimum).
If you aren't sure of the exact company name or location when you generate the CSR, don't worry; we can change and finalize that information during our review process before we issue the certificate.
Once your CSR is created, you'll need to copy and paste it into the online order form when you go to purchase your SSL certificate. Online Certificate Order Form »
If you want to convert your website from HTTP to HTTPS, you need to get a SSL certificate from a valid organization like Verisign or Thawte. You can also generate self signed SSL certificate for testing purpose.
In this article, let us review how to generate private key file (server.key), certificate signing request file (server.csr) and webserver certificate file (server.crt) that can be used on Apache server with mod_ssl.

I typically like to name the files with the domain name of the HTTPS URL that will be using this certificate. This makes it easier to identify and maintain.
First, generate a private key on the Linux server that runs Apache webserver using openssl command as shown below.
The generated private key looks like the following.
Using the key generate above, you should generate a certificate request file (csr) using openssl as shown below.
For testing purpose, you can generate a self-signed SSL certificate that is valid for 1 year using openssl command as shown below.
You can use this method to generate Apache SSL Key, CSR and CRT file in most of the Linux, Unix systems including Ubuntu, Debian, CentOS, Fedora and Red Hat.
Instead of signing it youself, you can also generate a valid trial SSL certificate from thawte. i.e Before spending the money on purchasing a certificate, you can also get a valid fully functional 21 day trial SSL certificates from Thawte. Call of duty ghosts key generator online. Once this valid certificate works, you can either decide to purchase it from Thawte or any other SSL signing organization.
This step is optional and not really required. For testing purpose, you can always use the self-signed certificate that was generated from the above step.
Go to Thwate trial certificate request page and do the following:
Copy/Paste the trial certificate to the www.thegeekstuff.com.crt file as shown below.
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