![]() You will need to configure a non- root user with sudo privileges before you start this guide. To complete this tutorial, you will need access to an Ubuntu 20.04 server to host your CA server. Finally you will learn how to revoke certificates and distribute a Certificate Revocation List to make sure only authorized users and systems can use services that rely on your CA. ![]() You will also learn how to import the CA server’s public certificate into your operating system’s certificate store so that you can verify the chain of trust between the CA and remote servers or users. In this guide, we’ll learn how to set up a private Certificate Authority on an Ubuntu 20.04 server, and how to generate and sign a testing certificate using your new CA. You can also configure your web server to use certificates issued by a private CA in order to make development and staging environments match production servers that use TLS to encrypt connections. Some examples of programs on Linux that use their own private CA are OpenVPN and Puppet. With a private CA, you can issue certificates for users, servers, or individual programs and services within your infrastructure. Although public CAs are a popular choice for verifying the identity of websites and other services that are provided to the general public, private CAs are typically used for closed groups and private services.īuilding a private Certificate Authority will enable you to configure, test, and run programs that require encrypted connections between a client and a server. A Certificate Authority (CA) is an entity responsible for issuing digital certificates to verify identities on the internet.
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