The following instructions will guide you through the CSR generation process on Nginx (OpenSSL). To learn more about CSRs and the importance of your private key, reference our Overview of Certificate Signing Request article. If you already generated the CSR and received your trusted SSL certificate, reference our SSL Installation Instructions and disregard the steps below.

Oct 04, 2013  Creating Wildcard self-signed certificates with openssl with subjectAltName (SAN - Subject Alternate Name) For the past few hours I have been trying to create a self-signed certificate for all the sub-domains for my staging setup using wildcard subdomain.

1. Log in to your server’s terminal.

• How to Generate a CSR Using Apache OpenSSL. For starters, you’ll need to have SSH access at server- and root-level permissions in order to generate your CSR and Private Key. Using Putty, connect to Apache Server SSH and login as root. Type the command below when prompted.
• Jun 07, 2017 The code snippet. “How to generate a wildcard cert CSR with a config file for OpenSSL” is published by pascal.brokmeier in curiouscaloo.

You will want to log in via Secure Shell (SSH).

2. Enter CSR and Private Key command

Condition zero serial key generator. Generate a private key and CSR by running the following command:

Here is the plain text version to copy and paste into your terminal:

Note:Replace “server ” with the domain name you intend to secure.

3. Enter your CSR details

Enter the following CSR details when prompted:

• Common Name: The FQDN (fully-qualified domain name) you want to secure with the certificate such as www.google.com, secure.website.org, *.domain.net, etc.
• Organization: The full legal name of your organization including the corporate identifier.
• Organization Unit (OU): Your department such as ‘Information Technology’ or ‘Website Security.’
• City or Locality: The locality or city where your organization is legally incorporated. Do not abbreviate.
• State or Province: The state or province where your organization is legally incorporated. Do not abbreviate.
• Country: The official two-letter country code (i.e. US, CH) where your organization is legally incorporated.

Note: You are not required to enter a password or passphrase. This optional field is for applying additional security to your key pair.

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4. Generate the order

Locate and open the newly created CSR in a text editor such as Notepad and copy all the text including:

Note 1: Your CSR should be saved in the same user directory that you SSH into unless otherwise specified by you.

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Note 2: We recommend saving or backing up your newly generate “.key ” file as this will be required later during the installation process.

Return to the Generation Form on our website and paste the entire CSR into the blank text box and continue with completing the generation process.

Upon generating your CSR, your order will enter the validation process with the issuing Certificate Authority (CA) and require the certificate requester to complete some form of validation depending on the certificate purchased. For information regarding the different levels of the validation process and how to satisfy the industry requirements, reference our validation articles.

After you complete the validation process and receive the trusted SSL Certificate from the issuing Certificate Authority (CA), proceed with the next step using our SSL Installation Instructions for Nginx using OpenSSL.

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