FusionAuth
FusionAuth is the authentication and authorization platform engineered for developers who demand flexibility and control. Built from the ground up to integrate with any stack, every feature — from user registration to MFA and SSO — is exposed via a modern, well-documented API.
Support for every major identity protocol is included out of the box: OIDC, SAML, OAuth2, JWT, passwordless login, social sign-on, and more. Whether you’re building a greenfield app or retrofitting auth into a legacy system, FusionAuth adapts to your use case — not the other way around.
Need compliance? FusionAuth helps you meet GDPR, HIPAA, and COPPA standards quickly and reliably.
Deploy it your way: install on Linux, Windows, macOS, Docker, or Kubernetes — or go with FusionAuth Cloud, our managed SaaS hosting. No black boxes. No vendor lock-in. Just powerful, customizable auth that works the way you do.
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Kinde
Kinde is auth for modern applications. Our powerful user authentication integrates in minutes and has a free tier to let you get started straight away. Every aspect of Kinde is designed to help your business grow and scale. From startup to IPO in a single platform.
Authentication happens at some of the most important, and highly impactful, places in your customers' journey. Our powerful builder allows you to make sure that your pages are on brand and as beautiful as the rest of your website and product experience.
Up-level your security with multi-factor authentication (MFA). Give your users access to advanced authentication options, protecting them from reused or breached passwords.
Take control of user authorization and access with enterprise SSO and custom SAML so that you can support your biggest customers as quickly as possible.
Manage users from one beautiful dashboard or using the API. Add and invite users, manage roles and permissions, and get a complete picture of your user activity.
Controlling who can access which individual pieces of data and interface is critical to protecting your business and your customers. Hierarchical role-based access control is the best way to manage this. Allowing strict control and flexible assignment – aligning everything from your business view of the world right down to the code you ship to customers.
Kinde was created by founders and engineers to help businesses generate more revenue, reduce costs and make lifelong loyal customers – in one place. Every day, Kinde gives our community of founders and partners across the globe, the infrastructure they need to build anything they can imagine.
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Cargo
Cargo serves as the package manager for Rust, handling tasks such as downloading dependencies, compiling packages, creating distributable versions, and uploading them to crates.io, which is the Rust community's designated package registry. Contributions to this book can be made through GitHub. To begin using Cargo, you need to install both Cargo and Rust, then create your first crate. Through the command-line interface, you will be able to interact with Cargo easily. A Rust crate can be classified as either a library or an executable, known respectively as a library crate or a binary crate. Generally speaking, the term crate can denote the source code of the project or the compiled output it generates. Additionally, it may also refer to a compressed package obtained from a registry. You can create crates that depend on external libraries available on crates.io, other registries, git repositories, or even local subdirectories. Moreover, there is an option to temporarily change the location of a dependency, providing flexibility in your project management. This versatility makes Cargo an essential tool for Rust developers.
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YUM
Managing software packages on Linux systems, including installing, patching, and removing them, is a fundamental responsibility for system administrators. This guide will help you navigate the basics of package management specifically for Red Hat-based Linux distributions. Package management refers to the process of installing, updating, uninstalling, and monitoring software from designated repositories within the Linux ecosystem. Different Linux distributions utilize various package management tools tailored to their needs. For Red Hat-based systems, the RPM (RPM Package Manager) alongside YUM (Yellow Dog Updater, Modified) or its successor DNF (Dandified YUM) serves this purpose. YUM is the primary tool employed for the tasks of installing, updating, and managing software packages in Red Hat Enterprise Linux environments. It effectively resolves dependencies during the installation, update, and removal of software packages. Additionally, YUM can handle packages sourced from both the installed repositories and .rpm files. There is a wide array of commands and options at your disposal when working with YUM, allowing for flexible management of software on your system. Thus, familiarizing yourself with these commands is crucial for efficient system administration.
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