--- title: "Arsalaan Shaikh (@Arsalaan99) | Hashnode" description: "Güten Tag. Read the latest articles by Arsalaan Shaikh on Hashnode." url: "https://hashnode.com/@Arsalaan99" --- @Arsalaan99 # Arsalaan Shaikh @Arsalaan99 · Joined January 2026 Güten Tag ### [All About DNS.](https://arsalaan99.hashnode.dev/all-about-dns?utm_source=hashnode&utm_medium=feed) What is DNS ? A Domain Name System is heart of the internet. It is often compared to a Telephone Phonebook. Which contains contact info of different / all resources on internet. Every machine on internet have IP address. It is the unique numerical id... 6 min read · [arsalaan99.hashnode.dev](https://arsalaan99.hashnode.dev/all-about-dns?utm_source=hashnode&utm_medium=feed) [Jan 29](https://hashnode.com/posts/all-about-dns/697b6f36115ee7ee6364adea) ### [Inside Git: How It Works and the Role of the ".git/ " Folder .](https://git-101.hashnode.dev/inside-git-how-it-works-and-the-role-of-the-git-folder?utm_source=hashnode&utm_medium=feed) P.S :- Git means the Entire software. & .git/ the folder that is created when we run “git init “. Git is a code tracking software. It’s main task is to keep track of all the changes that were made to a file, stores these changes in itself using encry... 8 min read · [git-101.hashnode.dev](https://git-101.hashnode.dev/inside-git-how-it-works-and-the-role-of-the-git-folder?utm_source=hashnode&utm_medium=feed) [Jan 28](https://hashnode.com/posts/inside-git-how-it-works-and-the-role-of-the-git-folder/6979f54cb7966b2484acaa4e) ### [Why Version Control Exists ? The Pen-drive Problem !!!](https://git-101.hashnode.dev/why-version-control-exists-the-pen-drive-problem?utm_source=hashnode&utm_medium=feed) Overview of the Problem. Let’s take a look at the above image as an example. Owner writes a code P1. Get stuck asks Helper for help. Ships / send his code to Helper using Pen-Drive / mail. Helper modified the code ( Added many lines / Deleted few ... 3 min read · [git-101.hashnode.dev](https://git-101.hashnode.dev/why-version-control-exists-the-pen-drive-problem?utm_source=hashnode&utm_medium=feed) [Jan 23](https://hashnode.com/posts/why-version-control-exists-the-pen-drive-problem/6973f4fcfd66ec50455f4e2c) ### [Git \_101 - Basics & Essential Commands.](https://git-101.hashnode.dev/git-101-basics-and-essential-commands?utm_source=hashnode&utm_medium=feed) Güten Tag !!! If you are just stepping into the world of writing code. There might be a chance you have heard about Git, Github. What are they ? Ain’t they same? Are they really important to learn ? Can’t i just share my code on mail ? These might be... 7 min read · [git-101.hashnode.dev](https://git-101.hashnode.dev/git-101-basics-and-essential-commands?utm_source=hashnode&utm_medium=feed) [Jan 22](https://hashnode.com/posts/git-101-basics-and-essential-commands/69723bdcf8a0c8b80b77ee3a)