How is email delivered

source: https://blog.bytebytego.com/p/how-https-works-youtube-diagram-as Do you know how an email is delivered? When I first learned how similar email is to traditional ‘snail’ mail, I was surprised. Maybe you will be, too. …

What is SSO

Original source: https://blog.bytebytego.com/p/what-is-sso-episode-7 In this newsletter, we will talk about the following: What is SSO (Single Sign-On)? What is the future of online payments? Top 38 most commonly used programming …

What The Heck Are You Actually Using NoSQL For?

Original source: http://highscalability.com/blog/2010/12/6/what-the-heck-are-you-actually-using-nosql-for.html It’s a truism that we should choose the right tool for the job. Everyone says that. And who can disagree? The problem is this is not helpful advice …

Back-of-the-envelope Estimation

Original source: https://bytebytego.com/courses/system-design-interview/back-of-the-envelope-estimation In a system design interview, sometimes you are asked to estimate system capacity or performance requirements using a back-of-the-envelope estimation. According to Jeff Dean, Google Senior Fellow, …

Scale From Zero To Millions Of Users

Original source: https://bytebytego.com/courses/system-design-interview/scale-from-zero-to-millions-of-users Designing a system that supports millions of users is challenging, and it is a journey that requires continuous refinement and endless improvement. In this chapter, we build …