[][Apache 2.0] [](https://travis-ci.org/clems4ever/authelia) [](https://gitter.im/authelia/general?utm_source=share-link&utm_medium=link&utm_campaign=share-link) **Authelia** is an open-source authentication and authorization server providing 2-factor authentication and single sign-on (SSO) for your applications via a web portal. It acts as a companion of reverse proxies like [nginx] or [Traefik] to tell them wether queries should pass through. Unauthenticated user are redirected to Authelia Sign-in portal instead. The architecture is shown in the diagram below.

**BREAKING NEWS: Authelia v4 has been released! Please read BREAKING.md if you want to migrate from v3 to v4. Otherwise, start fresh in v4 and enjoy!** **Authelia** can be installed as a standalone service using Docker or NPM but can also be deployed easily on [Kubernetes] leveraging ingress controllers and ingress configuration.

Here is what Authelia's portal looks like

## Features summary Here is the list of the main available features: * Several kind of second factor: * **[Security Key (U2F)](./docs/2factor/security-key.md)** with [Yubikey]. * **[Time-based One-Time password](./docs/2factor/time-based-one-time-password.md)** with [Google Authenticator]. * **[Mobile Push Notifications](./docs/2factor/duo-push-notifications.md)** with [Duo](https://duo.com/). * Password reset with identity verification using email confirmation. * Single-factor only authentication method available. * Access restriction after too many authentication attempts. * Fine-grained access control per subdomain, user, resource and network. * Support of basic authentication for endpoints protected by single factor. * Highly available using a remote database and Redis as a highly available KV store. * Compatible with Kubernetes [ingress-nginx](https://github.com/kubernetes/ingress-nginx) controller out of the box. For more details about the features, follow [Features](./docs/features.md). ## Proxy support Authelia works in combination with [nginx] or [Traefik] and soon with [HAProxy] as discussed in [#271](https://github.com/clems4ever/authelia/issues/271). It can be deployed on bare metal with Docker or directly in [Kubernetes].

## Getting Started You can start off with git clone https://github.com/clems4ever/authelia.git && cd authelia source bootstrap.sh If you want to go further, please read [Getting Started](./docs/getting-started.md). ## Deployment Now that you have tested **Authelia** and you want to try it out in your own infrastructure, you can learn how to deploy and use it with [Deployment](./docs/deployment-production.md). This guide will show you how to deploy it on bare metal as well as on [Kubernetes](https://kubernetes.io/). ## Security If you want more information about the security measures applied by **Authelia** and some tips on how to set up **Authelia** in a secure way, refer to [Security](./docs/security.md). ## Changelog & Breaking changes See [CHANGELOG.md](./CHANGELOG.md) and [BREAKING.md](./BREAKING.md). ## Contribute Anybody willing to contribute to the project either with code, documentation, security reviews or whatever, are very welcome to issue or review pull requests and take part to discussions in [Gitter](https://gitter.im/authelia/general?utm_source=share-link&utm_medium=link&utm_campaign=share-link). I am very grateful to contributors for their contributions to the project. Don't hesitate, be the next! ## Build Authelia If you want to contribute with code, you should follow the documentation explaining how to [build](./docs/build-and-dev.md) the application. ## License **Authelia** is **licensed** under the **[Apache 2.0]** license. The terms of the license are detailed in [LICENSE](./LICENSE). [Apache 2.0]: https://www.apache.org/licenses/LICENSE-2.0 [TOTP]: https://en.wikipedia.org/wiki/Time-based_One-time_Password_Algorithm [Security Key]: https://www.yubico.com/about/background/fido/ [Yubikey]: https://www.yubico.com/products/yubikey-hardware/yubikey4/ [auth_request]: http://nginx.org/en/docs/http/ngx_http_auth_request_module.html [Google Authenticator]: https://play.google.com/store/apps/details?id=com.google.android.apps.authenticator2&hl=en [config.template.yml]: ./config.template.yml [nginx]: https://www.nginx.com/ [Traefik]: https://traefik.io/ [HAproxy]: http://www.haproxy.org/ [Kubernetes]: https://kubernetes.io/