Generate a certificate signing request

• Generate A Private Key From Csr Program
• Generate A Private Key From A Csr
• Advantages Of Private Key Encryption

Note: server.key and servercsr.txt are the Private key and the CSR code files. Feel free to use any file names, as long as you keep the.key and.txt extensions. Tip: if you want to generate the Private key and CSR code in another location from the get go, skip step 3.1. And replace the openssl part of the command with.OpenSSL base folder.

Before you can install a Secure Socket Layer (SSL) certificate, you must first generate a certificate signing request (CSR). You can do this by using one of the following methods:

How to retrieve a private key on different server platforms: Using SSL/TLS Manager. On the cPanel home page, click on “SSL/TLS Manager” and then on the “Private keys” button. On the new screen, you. Using File manager. Click on the File manager button from the cPanel home screen and open the. To generate a private key and CSR from the command line, follow these steps: Log in to your account using SSH. At the command prompt, type the following command: openssl req -new -newkey rsa:2048 -nodes -keyout server.key -out server.csr. This command. At the Country Name prompt, type the. CSR and Private Key Generation Has Never Been Easier. The method of generating a certificate signing request (CSR) differs from one server to another. Our CSR Generation guide includes all necessary steps and information that you need while generating Certificate Signing Request (CSR) for your SSL certificate. Jul 08, 2009  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 modssl. Key, CSR and CRT File Naming Convention. 2 0 To generate a Certificate Signing Request (CSR) for Server 2016 – IIS 10 & 10.5 you will need to create a key pair for your server the public key and private key. These two items are a digital certificate key pair and cannot be separated. On Windows type systems like Microsoft Server 2016. If the private key is left unprotected, RapidSSL recommends access to the server be restricted so that only authorized server administrators can access or read the private key file. Step 2: Certificate Signing.

OpenSSL

The following sections describe how to use OpenSSL to generate a CSR for a single host name. If you want to generate a CSR for multiple host names, we recommend using the Cloud Control Panel or the MyRackspace Portal.

Install OpenSSL

Check whether OpenSSL is installed by using the following command:

• CentOS® and Red Hat® Enterprise Linux®

  The following output provides an example of what the command returns:

• Debian® and the Ubuntu® operating system

  The following output provides an example of what the command returns:

If the preceding packages are not returned, install OpenSSL by running the following command:

• CentOS and Red Hat

• Debian and the Ubuntu operating system

Generate the RSA key

Run the following commands to create a directory in which to store your RSA key, substituting a directory name of your choice:

Run the following command to generate a private key:

Create a CSR

Run the following command to create a CSR with the RSA private key (output is in Privacy-Enhanced Mail (PEM) format):

When prompted, enter the necessary information for creating a CSR by using the conventions shown in the following table.

Note: You cannot use the following characters in the Organization Name or Organizational Unit fields: < > ~ ! @ # $ % ^ * / ( ) ? . , &

Warning: Leave the challenge password blank (press Enter).

Verify your CSR

Run the following command to verify your CSR:

After you have verified your CSR, you can submit it to a CA to purchase an SSL certificate.

Windows IIS Manager

Use the following steps to generate a CSR by using Windows IIS Manager:

Note: The following steps are for IIS 8 or IIS 8.5 on Windows Server 2012.

1. Open IIS Manager.
2. In the left-hand Connections pane, click the server for which you want to generate a CSR.
3. In the center server Home pane under the IIS section, double-click Server Certificates.
4. In the right-hand Actions pane, click Create Certificate Request.

5. In the Request Certificate wizard, on the Distinguished Name Properties page, enter the following information and then click Next.

   Field	Explanation	Example
   Common Name	The fully qualified domain name to which the certificate applies. The domain names example.com and www.example.com are distinct from each other, so be sure to submit your request for the right domain. If you are purchasing a wildcard certificate, use *.example.com.	example.com
   Organization Name	The exact legal name of your organization. The CA might seek to confirm that your organization is real and legally registered, so don’t abbreviate words that aren’t abbreviated in the organization’s legal name.	Example Inc.
   Organizational Unit	The branch of your organization that is making the request.	Marketing
   City/locality	The city where your organization is legally located. Do not abbreviate the city name.	San Antonio
   State/province	The state or province where your organization is legally located. Do not abbreviate the state or province name.	Texas
   Country/region	The two-letter ISO abbreviation for your country.	US

6. On the Cryptographic Server Provider Properties page, enter the following information and then click Next.

   • Cryptographic service provider: Unless you have a specific cryptographic provider, use the default selection.
   • Bit length: 2048 is the recommended bit length.
7. On the File Name page, enter the location where you want to save the certificate request file and then click Finish.

After you have generated the CSR, you can submit it to a CA to purchase an SSL certificate.

Cloud Control Panel

Rackspace provides the CSR Generator for generating a CSR. The CSR Generator shows you the CSRs that you currently have and lets you create new CSRs with a simple form. After you have entered your details, the generator combines them with your private key so that you can submit the combined encoded information to a CA.

When you are done with the generator, you can return to the Cloud Control Panel by clicking any of the links in the top navigation or by going to login.rackspace.com and selecting Rackspace Cloud from the drop-down product menu in the top navigation bar.

Access the CSR Generator

Access the CSR Generator directly or through the Control Panel by using the following steps:

1. Log in to the Cloud Control Panel and select Rackspace Cloud from the drop-down product menu in the top navigation bar.
2. In the top navigation bar, click Servers > Cloud Servers.
3. Click the name of the server for which you want to generate a CSR.
4. In the right-hand Managing Your Server section under Help me with, click Generate a CSR.

Generate A Private Key From Csr Program

The generator lists your existing CSRs, if you have any, organized by domain name.

Generate a CSR

1. Click Create CSR.

2. Enter the following information, which will be associated with the CSR:

   Field	Explanation	Example
   Domain Name	The fully qualified domain name to which the certificate applies. The domain names example.com and www.example.com are distinct from each other, so be sure to submit your request for the right domain. If you want to secure both domains, you can use the Alt Names field. If you are purchasing a wildcard certificate, use *.example.com.	example.com
   Alt Names	(Optional) Additional domains that you want to add to the request. Each CA treats these differently, and the CA might charge for additional names. You can submit a comma-separated list.	www.example.com, secure.example.com
   Email Address	(Optional) A contact email address for the certificate.	support@example.com
   Organization Name	The exact legal name of your organization. The CA might seek to confirm that your organization is real and legally registered, so don’t abbreviate words that aren’t abbreviated in the organization’s legal name.	Example Inc.
   Organizational Unit	(Optional) The branch of your organization that is making the request.	Marketing
   City	The city where your organization is legally located. Do not abbreviate the city name.	San Antonio
   State or Province	The state or province where your organization is legally located. Do not abbreviate the state or province name.	Texas
   Country	Choose your country from the drop-down menu. The two-letter ISO abbreviation for your country is included in the CSR.	United States
   Private Key Bit Length	Key sizes smaller than 2048 are considered insecure and might not be accepted by a CA.	1024,2048,4096
   Hashing Algorithm	Both algorithms are currently trusted in mainstream browsers and offer industry recommended security. SHA-512 requires additional CPU processing.	SHA-256, SHA-512

   Note: You cannot use the following characters in the Organization Name or Organizational Unit fields: < > ~ ! @ # $ % ^ * / ( ) ? . , &

3. After you have entered all the required information, click Create CSR.

It can take between 5 and 60 seconds for the CSR to be generated. You might need to refresh the page that displays your CSRs before the new CSR is listed.

View CSR details

When CSR has been generated, you can click its UUID (unique identifier) in the CSR list to view its details screen.

This screen displays the information that you provided, the text of the CSR, and its associated private key.

Submit the CSR to the CA

The text in the Certificate Request field is the CSR. It contains encoded details of the CSR and your public key.

To request your SSL certificate, copy the Certificate Request text and submit it to your CA. Include all the text, including the BEGIN and END lines at the beginning and end of the text block.

Install the private key

Copy the private key to the server that will host the certificate. See your application documentation to determine where to install the private key and certificate on your server.

MyRackspace Portal

If you are a Managed or Dedicated customer, you can request a CSR through the MyRackspace Portal by using the following steps:

1. Log in to the MyRackspace Portal and select Dedicated Hosting from the drop-down product menu in the top navigation bar.
2. In the top navigation bar, click Tickets > Create Ticket.
3. On the Tickets / Create New Ticket page, select Generate Certificate Signing Request (CSR) from the Subject drop-down list.

4. Enter the following information in the Ticket Details section:

   Field	Explanation	Example
   Device(s)	The server or servers for which you want to generate a CSR. Use the drop-down menu to select your servers.
   Common Name	The fully qualified domain name to which the certificate applies. The domain names example.com and www.example.com are distinct from each other, so be sure to submit your request for the right domain. If you want to secure both domains, you can use the Alt Names field. If you are purchasing a wildcard certificate, use *.example.com.	example.com
   Alt. Names	(Optional) Additional domains that you want to add to the request. Each CA treats these differently, and the CA might charge for additional names. You can submit a comma-separated list.	www.example.com, secure.example.com
   Email Address	(Optional) A contact email address for the certificate.	support@example.com
   Organization	The exact legal name of your organization. The CA might seek to confirm that your organization is real and legally registered, so don’t abbreviate words that aren’t abbreviated in the organization’s legal name.	Example Inc.
   Organizational Unit	(Optional) The branch of your organization that is making the request.	Marketing
   Locality (City)	The city where your organization is legally located. Do not abbreviate the city name.	San Antonio
   State or Province Name	The state or province where your organization is legally located. Do not abbreviate the state or province name.	Texas
   Country	Choose your country from the drop-down menu. The two-letter ISO abbreviation for your country is included in the CSR.	United States

   Note: The bit length is automatically set to 2048.

5. Click Create Ticket.

Next steps

Reference

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Important: This example is intended to provide general guidance to IT professionals who are experienced with SSL requirements and configuration. The procedure described in this article is just one of many available methods you can use to generate the required files. The process described here should be treated as an example and not as a recommendation.

When you configure Tableau Server to use Secure Sockets Layer (SSL) encryption, this helps ensure that access to the server is secure and that data sent between Tableau Server and Tableau Desktop is protected.

Looking for Tableau Server on Linux? See Example: SSL Certificate - Generate a Key and CSR.

Tableau Server uses Apache, which includes OpenSSL. You can use the OpenSSL toolkit to generate a key file and Certificate Signing Request (CSR) which can then be used to obtain a signed SSL certificate.

Steps to generate a key and CSR

To configure Tableau Server to use SSL, you must have an SSL certificate. To obtain the SSL certificate, complete the steps:

2. Generate a key file.
3. Create a Certificate Signing Request (CSR).
4. Send the CSR to a certificate authority (CA) to obtain an SSL certificate.
5. Use the key and certificate to configure Tableau Server to use SSL.

You can find additional information on the SSL FAQ page on the Apache Software Foundation website.

Configure a certificate for multiple domain names

Tableau Server allows SSL for multiple domains. To set up this environment, you need to modify the OpenSSL configuration file, openssl.conf, and configure a Subject Alternative Name (SAN) certificate on Tableau Server. See For SAN certificates: modify the OpenSSL configuration file below.

Set the OpenSSL configuration environment variable (optional)

Generate A Private Key From A Csr

To avoid using the -config argument with every use of openssl.exe, you can use the OPENSSL_CONF environment variable to ensure that the correct configuration file is used and all configuration changes made in subsequent procedures in this article produce expected results (for example, you must set the environment variable to add a SAN to your certificate).

Open the Command Prompt as an administrator, and run the following command:

set OPENSSL_CONF=c:Program FilesTableauTableau Serverpackagesapache.<version_code>confopenssl.cnf

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Notes:

• When setting the Open SSL configuration environment variable, do not enclose the file path with quotation marks.

• If you are using a 32-bit version of Tableau Server on a 64-bit computer, run the set OPENSSL_CONF=c:Program Files (x86)TableauTableau Serverpackagesapache.<version_code>confopenssl.cnf command instead.

Generate a key

Generate a key file that you will use to generate a certificate signing request.

1. Open the Command Prompt as an administrator, and navigate to the Apache directory for Tableau Server. For example, run the following command:

   cd C:Program FilesTableauTableau Serverpackagesapache.<version_code>bin

2. Run the following command to create the key file:

   openssl.exe genrsa -out <yourcertname>.key 4096

   Note: This command uses a 4096-bit length for the key. You should choose a bit length that is at least 2048 bits because communication encrypted with a shorter bit length is less secure. If a value is not provided, 512 bits is used.

Advantages Of Private Key Encryption

Create a certificate signing request to send to a certificate authority

Use the key file you created in the procedure above to generate the certificate signing request (CSR). You send the CSR to a certificate authority (CA) to obtain a signed certificate.

Important: If you want to configure a SAN certificate to use SSL for multiple domains, first complete the steps in For SAN certificates: modify the OpenSSL configuration file below, and then return to here to generate a CSR.

1. Run the following command to create a certificate signing request (CSR) file:

   openssl.exe req -new -key yourcertname.key -out yourcertname.csr

   If you did not set the OpenSSL configuration environment variable, OPENSSL_CONF, you might see either of the following messages:

   • An error message about the config information being unable to load. In this case, retype the command above with the following parameter: -config .confopenssl.cnf.

   • A warning that the /usr/local/ssl directory cannot be found. This directory does not exist on Windows, and you can simply ignore this message. The file is created successfully.

   To set an OpenSSL configuration environment variable, see Set the OpenSSL configuration environment variable (optional) section in this article.

2. When prompted, enter the required information.

   Note: For Common Name, type the Tableau Server name. The Tableau Server name is the URL that will be used to reach the Tableau Server. For example, if you reach Tableau Server by typing tableau.example.com in the address bar of your browser, then tableau.example.com is the common name. If the common name does not resolve to the server name, errors will occur when a browser or Tableau Desktop tries to connect to Tableau Server.

Send the CSR to a certificate authority to obtain an SSL certificate

Send the CSR to a commercial certificate authority (CA) to request the digital certificate. For information, see the Wikipedia article Certificate authority and any related articles that help you decide which CA to use.

Use the key and certificate to configure Tableau Server

When you have both the key and the certificate from the CA, you can configure Tableau Server to use SSL. For the steps, see Configure External SSL.

For SAN certificates: modify the OpenSSL configuration file

In a standard installation of OpenSSL, some features are not enabled by default. To use SSL with multiple domain names, before you generate the CSR, complete these steps to modify the openssl.cnf file.

1. Open Windows Explorer and browse to the Apache conf folder for Tableau Server.

   For example: C:Program FilesTableauTableau Server<version_code>apacheconf

2. Open openssl.cnf in a text editor, and find the following line: req_extensions = v3_req

   This line might be commented out with a hash sign (#) at the beginning of the line.

   If the line is commented out, uncomment it by removing the # and space characters from the beginning of the line.

3. Move to the [ v3_req ] section of the file. The first few lines contain the following text:

   # Extensions to add to a certificate request
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment

   After the keyUsage line, insert the following line:

   subjectAltName = @alt_names

   If you’re creating a self-signed SAN certificate, do the following to give the certificate permission to sign the certificate:

   1. Add the cRLSign and keyCertSign to the keyUsage line so it looks like the following: keyUsage = nonRepudiation, digitalSignature, keyEncipherment, cRLSign, keyCertSign

   2. After the keyUsage line, add the following line: subjectAltName = @alt_names

4. In the [alt_names] section, provide the domain names you want to use with SSL.

   DNS.1 = [domain1]
DNS.2 = [domain2]
DNS.3 = [etc]

   The following image shows the results highlighted, with placeholder text that you would replace with your domain names.

5. Save and close the file.

6. Complete the steps in Create a certificate signing request to send to a certificate authority section, above.

Additional information

If you prefer to use a different version of OpenSSL, you can download it from Open SSL for Windows.