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#linux-basics

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DSDivyansh Sharmadivyanshblogs.hashnode.dev

Must have GNOME Extensions

Introduction GNOME is minimal, clean, and distraction-free by default. But its real power comes from extensions. With the right set of GNOME extensions, you can transform your desktop from a simple wo

4d ago5 min read

AMAnkush Mudaleankushmudale.hashnode.dev

Fundamental of Linux & Advance Concept

Learn Linux using 3 concepts what? Why? and How? What is Linux? Linux is an open-source kernel developed by Linus Torvalds in September 1991. He created it because he wanted a free and accessible system, as commercial UNIX was too expensive and the M...

6d ago5 min read

SPsudheer pithanichaoticcontainers.hashnode.dev

Linux Special Permissions: SUID, SGID, and Sticky Bit Explained

Introduction Beyond the standard read, write, and execute permissions we use daily, Linux has three special permission bits that provide advanced access control: SUID (Set User ID), SGID (Set Group ID), and the Sticky Bit. These special permissions s...

Feb 1514 min read

SPsudheer pithanichaoticcontainers.hashnode.dev

Linux File Permissions and Ownership: A Complete Guide

Introduction Linux is a multi-user operating system where multiple users can access the same system simultaneously. To maintain security and prevent unauthorized access, Linux implements a robust permission system. This guide will teach you everythin...

Feb 1512 min read

MAMinsu Agrahariminsu-agrahari-dev.hashnode.dev

Master DNS Queries - dig Command

Conversation between URL & DNS Server When a URL is written in the browser, the browser send the request to the DNS resolver(usually provided by the ISP or public DNS like Google DNS). The DNS resolver check whether the URL is present in the cache me...

Feb 154 min read

VPVraj Patelvraj-patel.hashnode.dev

The Ultimate Visual Guide to OverTheWire Bandit: Levels 0-16

The Bandit wargame from OverTheWire is a rite of passage for anyone learning Linux security. In these notes, I document my progress through the first 16 levels, focusing on the commands and logic required to solve them. Level 0 → 1: The Basics of SS...

Feb 95 min read

BMBhanu Mathurthibhanudevsr211230.hashnode.dev

Linux in one liners

1. Linux → the kernel, not the full operating system. It talks to hardware. 2. Kernel → controls CPU, memory, disk, network. The brain of the system. 3. Operating System → kernel + tools + libraries + apps. 4. Distribution (Distro) → Linux kernel bun...

Feb 81 min read

JAJose Alvarez R.blog.uptodeploy.com

30 Essential Commands in Linux: Quick Guide for SREs

1. System Observability & Performance CommandPurposeReal-World SRE Example top / htopProcess monitoring.htop (to visually identify which CPU core is pinned at 100%). uptimeSystem load average.uptime (to check if the load average exceeds the n...

Feb 83 min read

PTprudhvi tejalinux-with-prudhvi.hashnode.dev

Understanding File Permissions

While transferring a file from my Linux PC to my Windows PC using WinSCP, I faced a permission denied error. To fix this, I had to properly understand Linux file permissions. If you’re starting your Linux journey and have faced a similar issue, this...

Feb 75 min read

JKJitendra Kumarblog.jkpatelnx.in

Linux File Read and Write Explained: cat, head, tail, tee, and Redirection

If you are learning Linux, understanding how to read from and write to files using the terminal is a must-have skill. Configuration files, logs, scripts, and application data all depend on file operations. Before using editors like vi or nano, you sh...

Feb 63 min read

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