What Is Single Sign-on (SSO)? How It Works

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Covering topics and trends in large-scale system design, from the authors of the best-selling System Design Interview series.

[shakedko]

I love the simplification of your tutorials. Great content

[derrickmehaffy]

Something I would love to see about SSO is diving deeper into the SSO Authorization side as well. These examples are fantastic for the SSO authentication area but not diving into authorization to not just determine who the user is but also what they have access to.

I love your videos and strongly recommend them to my coworkers to help explain complex topics very easily but I also struggle to properly explain SSO Authentication vs SSO Authorization and the importance of both.

[gabrielfono]

I got your books few months ago when I was trying to learn system design without even knowing you were on youtube providing amazing contents.
thanks a lot.
I really love your content

[hanygarass]

Simple, easy and direct to the point explanation of SSO. Thank you so much for the info and being so precise!

[xUnknown]

This video is fantastic. Definitely the best one I have seen for this topic that goes over SAML and OIDC topics!

[carlellis]

I don't ever think I've ever received so much valuable information, in such a short amount of time. That was a terrific video, keep up the good work! :)

[mr.nobody]

this channel is underrated, keep the good work.

[reloaderv]

Super simple yet very complete explanation. 10/10

[benjaminretser]

Loved this style of video where you explain popular standards, more of this in the future i hope! I'm also a big fan of ur system desgin videos and was wondering if you would do a high frequency chat system like twitch chat or anything that involves combining the C10K problem with a chat channel. Maybe its just as simple as throwing together a redis microservice but im dying to know!

[quentin]

What a clear, straight-forward explanation. Thanks man.

[ReflectionOcean]

Key concepts:

1. Service Provider and Identify Provider
2. Federated Identity protocols: SAML (XML) vs OpenID (JWT)

[LM-fjug]

Thanks for the video!

As a product manager, your videos are super useful and easy to understand. Your videos by far are the most well created and easy to understand for explaining complex concepts.

I am currently trying to wrap my head around to understand how my developers implemented SSO in my company using OAuth2 and OIDC because I need to explain to people who have even less technical knowledge than I am. You'd think your own developers can explain what they have implemented, but having ability to explain complex concept to non-developers is not for everyone.

Would be great if you can also provide a similar easy to understand video for how SSO is implemented with OAuth2 and OIDC.
🙏🙏🙏

[BryanLong-fzzf]

Spectacular video that simplifies a complex process in a short, digestible clip without any fluff. I loved the animations throughout the video. What app or tool are you using for the animations?

[kickass]

it is amazing how quickly this channel have grown. Great content!

[resetengineering]

Crisp and full of info. Love the bytes for a high level understanding

[amwinkify]

You really are doing excellent videos. Way to translate difficult system design for the rest of us. Good job translating. THANK YOU!

[jonno]

Best explanation of SAML traffic flow I've seen. Other videos make it seem as though the IDP is making outbound connection to SP to deliver the assertion!

[Wellness-]

You made it so easy for me to understand !! Thank you so much! Im now a subscriber and soon to be an active viewer. Thanks again for a fantastic breakdown!

[kbmpjvi]

Thank you. You are the best one who is explaining the SSO.

[shawnkuo]

Great content! Excellent explanation of a complicated problem in a simple way.