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.
Create a pkcs12 (.pfx or.p12) from OpenSSL files (.pem,.cer,.crt.) You have a private key file in an openssl format and have received your SSL certificate. You'd like now to create a PKCS12 (or.pfx) to import your certificate in an other software? Here is the procedure! Find the private key file (xxx.key) (previously generated along. I am responsible for maintaining two Debian servers. Every time I have to do anything with security certificates, I Google for tutorials and beat away until it finally works. However, in my search. Steps to create RSA private key, self-signed certificate, keystore, and truststore for a client. Generate a private key. Openssl genrsa -out diagclientCA.key 2048 Create a x509 certificate. Openssl req -x509 -new -nodes -key diagclientCA.key -sha256 -days 1024 -out diagclientCA.pem Create PKCS12 keystore from private key and public certificate.
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:
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![]() Openssl Create Pem Certificate
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)
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
Notes:
Generate a key
Generate a key file that you will use to generate a certificate signing request.
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.
Openssl Generate Pem Certificate And Key Card
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.
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.
Additional information
If you prefer to use a different version of OpenSSL, you can download it from Open SSL for Windows.
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What is a SANOpenssl Generate Pem Certificate And Key Code
A SAN is a Subject Alternative Name, and as the name implies it serves as a secondary (or tertiary, etc.) DNS name that your web application could be identified as. This is useful in the context of web farms behind a reverse proxy, load-balancing solutions, etc.
For example:
Modern Browsers will show an SSL certificate as invalid if a proper SAN is not included, so itâs best practice for us to be in the habit of including SANs in our CSRs.
How to include a SAN
Because we want to include a SAN (Subject Alternative Name) in our CSR (and certificate), we need to use a customized openssl.cnf file.
While you could edit the âopenssl reqâ command on-the-fly with a tool like âsedâ to make the necessary changes to the openssl.cnf file, I will walk through the step of manually updating the file for clarity.
Example openssl.cnf file
Note that the subjectAltName declaration calls an array called @alt_names, which is defined at the bottom of the file.
To include a single SAN in your CSR, update the âDNSâ declaration to the appropriate value (in this example, âwebserver1.scriptech.ioâ), and leave the DNS.x declarations commented out (#). The result is an @alt_names array with a single entry.
To include multiple SANS in your CSR, comment out (#) the âDNSâ declaration, and uncomment the DNS.x declarations that you need. For example, your [alt_names] section would look like:
The result is an @alt_names array with multiple entries.
Generate the new key and CSR
If you have not already, copy the contents of the example openssl.cnf file above into a file called âopenssl.cnfâ somewhere. Cisco crypto key generate rsa. Make note of the location.
Also make sure you update the DN information (Country, State, etc.)
Create a new key
Create a new CSR
Verify the CSR
To view the contents of your new CSR, use the following command:
This example shows a single SAN which I included in my openssl.cnf file.
Sign the CSR
Now that you have your properly-formatted CSR, you need to sign it using a Trusted Root Certificate Authority. Depending on your context, this could be a third-party CA like DigiCert or GoDaddy, or it could be an internal Certificate Authority (OpenSSL CA, Active Directory Certificate Services)
The contents of a certificate in the openssl format can be viewed with the following command:
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