--- title: "Mahir (@mahirkr) | Hashnode" description: "Mahir (@mahirkr) writes on Hashnode. Read their latest articles and follow their work." url: "https://hashnode.com/@mahirkr" --- @mahirkr # Mahir @mahirkr · Joined January 2026 ### [All the blogs links](https://mahir1.hashnode.dev/all-the-blogs-links?utm_source=hashnode&utm_medium=feed) So, whoever is seeing my blogs this for you, I submitted my profile link, but all 13 blogs are not showing on the profile. I don’t know the reason why, so I am posting all blogs link here : Git Blog Title: Git for Beginners: Basics and Essential Comm... 1 min read · [mahir1.hashnode.dev](https://mahir1.hashnode.dev/all-the-blogs-links?utm_source=hashnode&utm_medium=feed) [Jan 30](https://hashnode.com/posts/all-the-blogs-links/697ccdc8ff7ce79c7f9c74d6) ### [CSS Selectors 101: Targeting Elements with Precision](https://mahir1.hashnode.dev/css-selectors-101-targeting-elements-with-precision?utm_source=hashnode&utm_medium=feed) The first question while writing CSS is which HTML element you want to design. Because a webpage contains many elements like headings, paragraphs, buttons, images, sections, etc. CSS selectors allows to pick the element you want to design. Why are C... 2 min read · [mahir1.hashnode.dev](https://mahir1.hashnode.dev/css-selectors-101-targeting-elements-with-precision?utm_source=hashnode&utm_medium=feed) [Jan 30](https://hashnode.com/posts/css-selectors-101-targeting-elements-with-precision/697cca951a231f0ac86bb3bb) ### [TCP vs UDP: When to Use What, and How TCP Relates to HTTP](https://mahir1.hashnode.dev/tcp-vs-udp-when-to-use-what-and-how-tcp-relates-to-http?utm_source=hashnode&utm_medium=feed) You open a website, watch a video, send a message — everything just works. But behind the scenes, the internet is simply: Computers sending data to other computers. And for that to work smoothly, we need rules. Because without rules, data would becom... 3 min read · [mahir1.hashnode.dev](https://mahir1.hashnode.dev/tcp-vs-udp-when-to-use-what-and-how-tcp-relates-to-http?utm_source=hashnode&utm_medium=feed) [Jan 30](https://hashnode.com/posts/tcp-vs-udp-when-to-use-what-and-how-tcp-relates-to-http/697cc8b738e9838a0c293db0) ### [TCP Working: 3-Way Handshake & Reliable Communication](https://mahir1.hashnode.dev/tcp-working-3-way-handshake-and-reliable-communication?utm_source=hashnode&utm_medium=feed) Imagine you read my blog and wanted to send me kind words as appreciation. This sounds simple right? But behind the scenes, your “nice work” won't come directly to me in a single piece; it will be broken into pieces called packets and will travel thr... 2 min read · [mahir1.hashnode.dev](https://mahir1.hashnode.dev/tcp-working-3-way-handshake-and-reliable-communication?utm_source=hashnode&utm_medium=feed) [Jan 30](https://hashnode.com/posts/tcp-working-3-way-handshake-and-reliable-communication/697cc78345201edb3a09dbd2) ### [Getting Started with cURL](https://mahir1.hashnode.dev/getting-started-with-curl?utm_source=hashnode&utm_medium=feed) Before understanding cURL, what is a Server? A server is just a computer somewhere on the internet that stores data or provides services. For example, Google has servers that send you search results. So anytime you visit a website or use an app, your... 2 min read · [mahir1.hashnode.dev](https://mahir1.hashnode.dev/getting-started-with-curl?utm_source=hashnode&utm_medium=feed) [Jan 30](https://hashnode.com/posts/getting-started-with-curl/697cc5d245201edb3a09dba3)