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If you want to install an SSL certificate on your Heroku server but lack the necessary expertise, this article is for you. But, before we start exploring the installation process, it is essential to address a prerequisite: CSR Generation.
CSR (Code Signing Request) file contains essential details about your domain and organization, which the Certificate Authority (CA) uses to validate your SSL application. You have two options to generate a CSR for the Heroku server:
Option 1: Utilize our CSR Generator tool that automates the process of creating a CSR and private key based on your provided information.
Option 2: Generate it manually in your local environment. If you choose the second option, it is crucial to double-check and ensure the accuracy and currency of all the information included in the manually generated CSR. Any inaccuracies or outdated details can result in the CA rejecting the certificate signing process. After successfully generating the CSR, submit it for validation to the CA.
To install an SSL certificate on Heroku, you can follow the four-step approach summarized beneath:
After your CSR is verified, the CA will issue your SSL certificate along with additional files necessary for installation. Ensure you have the following files ready:
Before installing the SSL certificate on Heroku, you must combine the main certificate and the CA Bundle into a single file. This ensures seamless installation. Follow these steps:
You can accomplish this using the Heroku Dashboard or the Command Line Interface. Use the most comfortable option.
To confirm whether the SSL certificate has been successfully deployed on your Heroku server, you can utilize the heroku certs:info command. If you encounter an error message, performing the process again from the initial step is advisable.
You also have the option to utilize SSL testing tools such as SSL Checker. These tools are designed to efficiently detect any vulnerabilities or potential errors in your SSL setup. By leveraging these tools, you can obtain a comprehensive report that offers detailed insights into any issues affecting your SSL configuration.
The Installation and Updation processes are the same if you use the Heroku dashboard. However, if you prefer using the CLI for updating the certificate, there is a slight variation. Instead of utilizing the heroku certs:add command, you should employ the heroku certs:update command. The proper formatting for the command is as follows: “heroku certs:update server.crt server.key.”
Using the Heroku dashboard to delete the certificate:
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