Authelia on Proxmox - 2FA SSO with Nextcloud, Proxmox, Portainer, and Gitea Using OpenID Connect

Learn how to self-host Authelia in a Proxmox container and utilize it as an OpenID Connect (OIDC) Identity Provider for Two-Factor Authentication (2FA) Single Sign-On (SSO) with Nextcloud, Proxmox, Portainer, and Gitea. Explore the fundamentals of SSO, understand the benefits of Authelia, and follow a step-by-step guide for setup and configuration. Discover how to adapt configurations, register 2FA, implement NGINX for enhanced security, and integrate OpenID Connect with various applications. Gain insights into handling scenarios where OpenID is not supported and access valuable resources for further learning and implementation.

Intro: SSO
Why Authelia?
Setup Steps Overview
Rudimentary Install
Adapt the Config
Register 2FA
Hide behind NGINX
add OpenIDC
OIDC: NextCloud
OIDC: Proxmox
OIDC: Portainer
OIDC: Gitea
What if OpenID is not supported?
Last Thoughts
Source Disclosure