Linux Generate Key And Csr

Corel draw graphic suite x7 key generator. 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.

Linux Generate Key And CsrKey

Linux Generate Key And Csr Program

To generate a CSR, you will need to create a key pair for your server. These two items are a digital certificate key pair and cannot be separated. If you lose your public/private key file (key pair) and generate a new one, your SSL Certificate will no longer match. You will have to request a new SSL Certificate and may be charged.

Key, CSR and CRT File Naming Convention

Ubuntu Generate Csr

  1. At the end of the command, it showing 2048, which is the length of the key in bits. Most of CA required 2048 bit length keys. Above command will create a key file tecadmin.net.key, which is used in step 3. Step 3: Generate CSR for your Domain using Key. After generating a key, next steps are to generate CSR.
  2. May 13, 2019 There are two steps involved in generating a certificate signing request (CSR). First, you have to generate a private key, and then generate CSR using that private key. Step 1: Generate a private key. Enter the following command in the Terminal with sudo to generate a private key using RSA algorithm with a key length of 2048 bits.
  3. Amazon Web Services: Create CSR and Install SSL Certificate (OpenSSL) Creating a CSR and installing your SSL certificate for Amazon Web Services (AWS) Use the instructions on this page to use OpenSSL to create your certificate signing request (CSR) and then upload and implement your SSL certificate in your AWS instance.
  4. May 02, 2016  Generating a CSR with SAN at the command line Lately, I’ve explored creating my own CSRs for use with Let’s Encrypt, so I can control the common name and subject names. I’m neurotic enough that I can’t bear to let Let’s Encrypt decide.
  5. Access the CSR Generator. Access the CSR Generator directly or through the Control Panel by using the following steps: Log in to the Cloud Control Panel and select Rackspace Cloud from the drop-down product menu in the top navigation bar. In the top navigation bar, click Servers Cloud Servers. Click the name of the server for which you want to generate a CSR.

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:

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  • 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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Linux Generate Key And Csr Number

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