Generate Ssl Private Key File

17.04.2020by

For any live website, SSL Certificates have become a key requirement. A Certificate Authority (CA) verifies and issue SSL certificates. There are two categories of these certificates:

  • Self-Signed certificates: As the name implies, these are the certificates that are signed by the identity creating it rather than by a trusted certificate authority. It is Mostly used in an intranet environment for trial and development purposes.
  • CA Certificates: These certificates are signed by a trusted CA (Certificate Authority) such as Verisign, DigiCert, GoDaddy, Thawte, etc.

How to generate/export a private key in ISE 2.0: Any idea? Hello, Curious to know the process mentioned in the title of this discussion. I'm looking everywhere for this, but cannot find it so far. Any detailed explanation on how this can be achieved would be greatly appreciated. Convert a PEM certificate file and a private key to PKCS#12. Sep 11, 2018  Secure Socket Layer (SSL). To generate a public and private key with a certificate signing request (CSR), run the following OpenSSL command. In order to move a certificate from a Windows server to a non-Windows server, you need to extract the private key from a. Mar 31, 2018 If all you’re looking to download is the private key file, then you can do the following: CPanel Admin — Security SSL/TLS — Private Keys (KEY) Generate, view upload or delete your private keys — Keys on Server Edit — Cut and paste decoded private key to a.key file. May 09, 2014  We did not create the key that is required to sign the certificate in a previous step, so we need to create it along with the certificate. The rsa:2048 portion tells it to make an RSA key that is 2048 bits long.-keyout: This line tells OpenSSL where to place. I'd like to generate a CRT/KEY couple SSL files with Let's Encrypt (with manual challenge). I'm trying something like this: certbot certonly -manual -d mydomain.com But I only get these files. Entrust SSL certificates do not include a private key. The private key resides on the server that generated the Certificate Signing Request (CSR). From the File menu, choose Add/Remove Snap-in. Select Certificates. You will need to generate a new Certificate Signing Request and submit it to Entrust Datacard to have your.

To obtain a self-signed SSL certificate or the one signed by a certificate authority, you first have to create a certificate signing request (CSR). After the CSR is generated, it is then submitted to a certificate authority to acquire an SSL certificate. CSR is a block of encrypted text that contains all the information including the organization’s name, country, city, email address, etc. required for the generation of an SSL certificate.

In this article, we will explain how to generate a CSR on a Linux server or desktop using the command line. We will use Debian 10 OS for describing the procedure mentioned in this article.

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Getting Started

For generating CSR on a Debian OS, we will need OpenSSL tool. OpenSSL is an open-source tool widely used for generating a CSR. To check whether OpenSSL is installed or not, open the Terminal in your Debian OS and then type the below command:

If it is already installed in your system, it will return the following results.

Installing OpenSSL

If you do not see the above results, then you have to install OpenSSL as follows:

Enter the below command in the Terminal to switch to super user account.

Enter the required password. Then execute the below command to install OpenSSL.

Wait for a while until the installation of OpenSSL is completed.

Generate certificate private key

Generating CSR

Run the following command to generate a private key and the CSR. The command syntax is as follows:

Replace domain in the above command with your own domain name.

Enter a few details like Country name; State, Organization name, email address, etc. and make sure to enter the right information, as it will be later checked by a certificate authority.

Above command will generate a private key in the file domain.key and certificate request in the file domain.csr and save it in your current directory.

View and copy the contents of private key

You can view and store the private keys on your server that you may need later. However, the important thing is not to share it with anyone. Navigate to the directory where the key file is stored. Then run the below method in order to view the contents of the private key file:

Replace domain in the above command with your own domain name.

To copy the contents of the private key file, select and copy the entire content including the “BEGIN PRIVATE KEY” and “END PRIVATE KEY” tags.

View and copy contents of CSR file

To obtain an SSL certificate, you will need to send the certificate request to a certificate signing authority by copy-pasting the entire content of CSR file.

To view the content of CSR file, navigate to the directory where the CSR file is stored. Then run the below method:

Replace domain in the above command with your own domain name.

To copy the contents of the CSR file, select and copy the entire content including the “BEGIN CERTIFICATE REQUEST” and “END CERTIFICATE REQUEST” tags. Adobe illustrator cs3 serial number crack free download.

That was all you need to know about generating a certificate signing request (CSR) in a Debian 10 OS. Now you can get an SSL certificate from certificate signing authority by pasting the content of CSR file on the order form when enrolling for SSL certificate.

How to Generate a SSL/TLS Certificate Signing Request (CSR) on Debian 10

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.

Key, CSR and CRT File Naming Convention

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.

  • Instead of server.key, I use www.thegeekstuff.com.key
  • Instead of server.csr, I use www.thegeekstuff.com.csr
  • Instead of server.crt, I use www.thegeekstuff.com.crt

1. Generate Private Key on the Server Running Apache + mod_ssl

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.

2. Generate a Certificate Signing Request (CSR)

Using the key generate above, you should generate a certificate request file (csr) using openssl as shown below.

3. Generate a Self-Signed SSL Certificate

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.

4. Get a Valid Trial SSL Certificate (Optional)

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. 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:

  • Select “SSL Web Server Certificate (All servers)” under the “select your trial certificate”.
  • Do not check the PKCS #7 check-box under the “configure certificate”
  • Copy/Paste the *.csr file that you generate above in the textbox under “certificate signing request (CSR)”
  • Click on next at the bottom, which will give you a 21-day free trial certificate.


Copy/Paste the trial certificate to the www.thegeekstuff.com.crt file as shown below.

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