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Walk Through: Computer Networking Fundamentals – Part 4

This is the fourth and final part of Computer Networking Fundamentals series, you can read the third part here. So in the previous part, I dived into the transportation layer through illustrating the concept of multiplexing and demultiplexing traffic, the TCP protocol segments, The way TCP establishes a connection using the different TCP control flags, TCP three-way and four-way handshake, the TCP sockets states, the differences between a connection-oriented protocols like a TCP and a connection-less protocols like UDP, finally the firewalls. 2,787 more words

Technical Stuff

How to download Xcode without HTTP forbidden error?

Install Chrome addon : chookie.txt

In terminal :

wget --load-cookies=cookies.txt -c https://download.developer.apple.com/…/Xco…/Xcode_10.2.1.xip

How to fix Instagram if it is Not Working

Instagram is one such app that most people use regularly. It is frustrating for users when Instagram doesn’t work correctly. Sometimes, the servers are down, but for those situations when Instagram doesn’t work correctly, we have provided ways to solve the issue. 764 more words


How to extract zip files in iOS and Android

There isn’t a built-in tool in iOS and Android devices that can open a zip file or folder directly. So, to extract a .zip file in your phone or tab, you need to install an app. 482 more words



Engage in epic naval combat and explore the oceans of the Warhammer world.

Man O’ War: Corsair is a video game of high adventure, naval combat and exploration based on the Games Workshop classic Man O’ War table top game. 319 more words


First thing’s first. What is a runtime error?

If you have ever encountered a runtime error while using Microsoft Word you know how frustrating this can be, and if you have ever lost work as a result of this error you will definitely want to find a quick and easy fix to this common problem. 541 more words