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

Latency Numbers Programmer Should Know

In this video we will explain how you can author a web application, host it on your laptop then expose it through the internet via port forwarding. We will explain the difference between private ip in Local Area network and Public IP, we will explain how routers have two IP addresses public and private IP. 

We will also do a live edit on my router configuration to do a port forwarding of port 8080 to my local laptop and even access that through my phone. 

-Hussein



Stay Awesome!
Hussein

Public IP vs. Private IP and Port Forwarding (Explained by Example)

Get my Fundamentals of Networking for Effective Backends udemy course Head to https://network.husseinnasser.com (link redirects to udemy with coupon)


In this episode we explain the difference between a Proxy (Forward proxy) and Reverse Proxy by example, and list all the benefits of each server. 
 
Chapters
0:00 Intro
00:20 Proxy Explained
02:25 Proxy Benefits
04:54 Reverse Proxy Explained
06:49 Reverse Proxy Benefits
 

Online diagram tool used in this video: Http://www.gliffy.com 


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Stay Awesome,
Hussein

Proxy vs. Reverse Proxy (Explained by Example)

Subscribe to our weekly system design newsletter: https://bit.ly/3tfAlYD

Checkout our bestselling System Design Interview books: 
Volume 1: https://amzn.to/3Ou7gkd
Volume 2: https://amzn.to/3HqGozy

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Animation tools: Illustrator and After Effects

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

What is OSI Model | Real World Examples

In this video I explain how to perform SSH Tunneling with Local Port forwarding and remote port 
forwarding 


Chapters
0:00 Intro
3:30 Local Port Forwarding Example
11:20 Remote Port Forwarding Example

I need to access something remote that I don’t have access to. 
only expose 1 port securely and access pretty much any service (database etc..)

ssh -L local_port:remote_address:remote_port username@sshserver

I need people to access something local on my machine that they don’t have access to


ssh -R remote_port:local_address:local_port username@sshserver


For Remote Port forwarding the ssh server  config /etc/ssh/sshd_config should have a property GatewayPorts yes




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Stay Awesome,
Hussein

SSH Tunneling - Local & Remote Port Forwarding (by Example)

Checkout our bestselling System Design Interview books: https://amzn.to/3HqGozy

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Other things we made:
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Twitter: https://bit.ly/3HqEz5G
LinkedIn:  https://bit.ly/39h22JK

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