The Backend Engineering Show with Hussein Nasser

Database engines or storage engines or sometimes even called embedded databases is software library that a database management software uses to store data on disk and do CRUD (create update delete) Embedded means move everything in one software no network client server. In this video I want to go through the few popular database engines, explain the differences between them and finally I want to s...

Database Sharding Crash Course (with Postgres examples) Database sharding is process of segmenting the data into partitions that are spread on multiple database instances to speed up queries and scale the system. What is sharding? sharing key / partition key Consistent Hashing Horizontal partitioning vs Sharding Example Pros and cons What is Sharding? 1:30 Consistent Hashing 4:50 Horizontal partit...

Varnish is a reverse proxy web accelerator  Written in C designed to improve HTTP performance by using server side caching. In this video I’m going to go through how Varnish works, we will spin up a Varnish docker container and finally talk about the pros and cons of this tech. Agenda Classic HTTP Architecture How Varnish Works? HTTP Setup - Varnish HTTPS Setup - Varnish with Caddy as TLS Terminat...

short is a major revision of the hyper text transfer protocol that improves the performance of the web. It uses a binary protocol and multiplexing. In this video I want to go through how HTTP/2 works, its pros and cons and show the performance difference between HTTP 1.1 and HTTP/2 Http/1 request has to wait for a response And if you used up your connection response you can send anything else. Sou...

Sorry about the free form audio and low quality thought I post something here its been while

Tor or (The Onion Router) is a free and open source project for allowing anonymous communication. In this video I want to discuss this technology and explain how it works. What can sniffers really see? Why Tor? Why don’t we just use a VPN? How Tor Works? More about Tor So if you are interested stay tuned. Cards: 6:00 TLS 10:53 symmetric key encryption TimeCodes: Normal Request 1:30 What sniffers s...

Apache Kafka is a distributed stream processing software developed by LinkedIn and written in Scala and Java. In this video I want to focus on the basics on Kafka, talk about how it works give finally spin up a kafka cluster and write a producer and a consumer. Kafka Components _ producer _consumer _topic _partition How Kafka works Example ( Ride sharing ) Spin Kafka cluster Write a producer Write...

Tom Scott Full Video https://youtu.be/WVDQEoe6ZWY Tom Scott is a YouTuber with around 2M subscribers who discusses and specialized in computer security. I always enjoy his videos specially those on computerphile. He recently made a very interesting video titled This video is sponsor by —- We all probably know this is a reaction video to NordVPN Hack. He is really smart and not just because of his...

RabbitMQ RabbitMQ is an open source distributed message queue written in Erlang and supports many communication protocols. It was trying to solve the spaghetti 🍝 mesh architecture where every client is communicating with other client in System by introducing an extra layer in the middle. (slide) In this video we will explain basic components of RabbitMQ Such as AMQP, channel, queue, publisher, co...

Redis is a noSQL key-value store, in memory database first that exploded in popularity in the past few years. In this video slash course, we will explain what Redis is, talk about the in-memory model, the optional durability, replication, clustering publish subscribe and the protocol and finally we will go through examples. During the video I will add time codes to each topic so you guys can jump...

GraphQL Pros and Cons, examples and when to use over REST GraphQL is an open source query language developed by facebook that allows clients to formulate queries to get different results. Its main goal is to combine multiple services into one endpoint. In this video we will discuss what is GraphQL, why facebook developed it, go through some examples using github GraphQL API, finally we will discus...

Consistency vs Eventual Consistency Consistency is the property of having expected result in view of the data or during reads while working with a database system. It is one of the ACID properties in relational databases. Eventual consistency is another term that was born recently specifcally as NOSQL databases got emerged. In this video we will talk discuss the difference the different kind of co...

  ACID ACID are four properties of relational database, they Atomocity, consistency, isolation and durability, and I think any one working with a relational database like postgres, mysql, sqlserver oracle, should understand these properties. In this video we will go through the four properties and explain why each is critical to make a relational database we will also talk about why some people ar...

  REST stands for Representational state transfer its is an architecture that became very popular in build web APIs. It was the dissertation of Roy Fielding. In this video we discuss what makes an API RESTFUL, the REST APIs constrains, ill the show you an example of a RESTFUL api in github.  Representation and State transfer   Representational   The resource is a representation...

A proxy is a software that intercepts traffic and forward it to the destination on behave of the client. This extra layer provide several advantages such as caching, load balancing, content filtering and much more. Some implementations of proxy can be used by governments to spy on its citizens. We made a video about proxy vs reverse proxy check it out if you want to learn more about the difference...

  HTTP is a protocol for transferring web pages, text, media, binary files and much more. It stands for hyper text transfer protocol and It is what the Internet pretty much runs on. In this video we will learn how HTTP works, how it is secured with HTTPS, will also show how to spin up an Http web server, and we will also go through the evolution of HTTP starting from HTTP 1.0 to HTTP 1.1 to H...

NAT network address translation is a process of mapping an IP address or IP port pair to another IP address or IP: port. You might be wondering what a software engineer like me doing making a video on a low level networking concept? I have good reasons for that. NAT was originally designed to solve the ipv4 limited IP addresses, but since been used for port forwarding and layer 4 load balancing th...

Tunneling protocol Tcp tunneling Tunneling is the process of encapsulating content from a protocol A into another protocol B, usually because protocol A is blocked or unavailable. In this video we will explain how TCP tunneling works, the applications of TCP tunnels and the pros and cons. Coming up! * TCP Tunneling * Applications * Pros and Cons TCP Tunneling Here is how TCP Tunneling works. Lets...

  TLS which stands for transport layer security is a protocol for securing communication between client and server. Specifically for HTTPS. Thats what the S is stands for.  In this video, we will learnq how insecure vanilla HTTP works, HTTPS, then we will learn how HTTPS is possible via the transport layer security and finally we will talk about the improvements in 1.3 that was published...

Encryption is the process of scrambling data to protect personal files, secure communication, hide identities and much more.  In this video we will learn about the different type of encryptions we will talk about symmetric encryption, asymmetrical encryption, where they are used for and the pros and cons of each one.  Symmetric encryption Asymmetrical encrypt  Pros and cons of sym v...

  Bandwidth explained from software engineer point of view Bandwidth is measured by how many bits a device is allowed to send/receive in a second. It ranges from your internal network starting from network card all the way to your ISP Internet speed. In this video we will discuss the definition of bandwidth upload vs download speed, the different usage patterns for normal web browsing, stream...

  Denial of Service attacks Dos attacks (denial of service) are type of attack on a server to prevent users from consuming a particular service, usually this is an HTTP web server. This could happen by either saturating the bandwidth of the pipe going to the server or by bringing the server down to its knees so it stops taking requests all together. In this video we will learn about 3 differe...

 TCP and UDP are communication protocols that allows us to send and receive data in a network. We have both for a reason since each has its advantages and disadvantages. In this video we will talk about two protocols, pros and cons of each one and will write tcp and udp server with nodejs showing you these in ACTION. coming up Code!  https://github.com/hnasr/javascript_playground/tree/ma...

  Get and POST are the most popular http methods used on the web. Each carries its own differences and properties. It can confusing to get to choose when to use POST over GET. In this podcast we will explain the differences, use cases and the benefits of using GET and POST. 

  Microservices (Explained by Example) Microservices technology is a new pattern of software engineering that has been popularized recently. In this video we will explain what microservices are, their pros and cons by example.  A lot of companies have moved in the early 2010 such as twitter and netflex to the microservices architecture.  Microservices technology is a pattern where you can break do...