A 54min speed run with explanations video walkthrough of this sso quickstart guide can be found on the following 2 mirrored locations:
*[Google Drive - Video Mirror](https://drive.google.com/file/d/1xzRKhFQy4WXW97YWUFpixclLGAKfgA6Z/preview)
*[Repo1 - Video Mirror](https://repo1.dso.mil/platform-one/bullhorn-delivery-static-assets/-/blob/master/big_bang/bigbang_sso_quickstart.mp4)
## Blue Team Knowledge Drop
Imagine <https://authdemo.bigbang.dev> represents a mock-up of a custom-built mission application that doesn't have SSO, Authentication, or Authorization built-in. Auth Service can add those to it which creates layers of defense/defense in depth in the form only allowing authenticated users the ability to even see the page, enforcing MFA of authenticated users, and requiring that authenticated users are authorized to access that service (they must be in the correct group of their Identity Provider, and this means you can safely enable self-registration of users without hurting security. Auth Service's Authentication Proxy has an additional benefit in regards to defense in depth. You can add it in front of most frontend applications to create an additional layer of defense. Example: Grafana, Kibana, ArgoCD, and others have baked in support for OIDC/SSO and AuthN/AuthZ functionality, so you may think what benefit could be had from adding an authentication proxy in front of them (it seems redundant at first glance). Let's say that a frontend service was reachable from the public internet and it had some zero-day vulnerability that allowed authentication bypass or unauthenticated remote code execution to occur via a network-level exploit / uniquely crafted packet. Well someone on the internet wouldn't even be able to exploit these hypothetical zero-day vulnerabilities since it'd be behind an AuthN/AuthZ proxy layer of defense which would prevent them from even touching the frontend. Bonus: Istio, AuthService, and Keycloak are all Free Open Source Software (FOSS) solutions and they work in internet disconnect environments, we'll even demonstrate it working using only Kubernetes DNS and workstation hostfile edits / without needing to configure LAN/Internet DNS.
