Linux File Permissions, Users & Groups: A Complete Practical Guide
Learn Linux file and directory permissions, users, groups, chmod, chown, umask, ACLs, and security best practices with practical examples.
CVE-2026-98432: Critical Linux Kernel TCP Vulnerability Scores 9.8
Introduction A critical vulnerability in the Linux kernel's TCP networking subsystem has raised security concerns for organizations running Linux-based servers, cloud infrastructure, and containerized workloads. Tracked as CVE-2026-98432, the vulnerability has received a CVSS 3.1 score of 9.8 out of 10 from the
CVE-2026-97631: Critical UEFI Firmware Flaw Exposes Servers to Pre-Boot Code Execution
Introduction A server can have a fully patched operating system, properly configured firewall rules, endpoint monitoring, and Secure Boot enabled—and still be vulnerable before any of those protections have an opportunity to work. That is the concern raised by CVE-2026-97631, a critical vulnerability discovered in the UEFI
CVE-2026-111497 Explained: Node.js Brotli Decoder RCE Vulnerability (Complete Technical Analysis)
Introduction Modern web applications process enormous volumes of compressed data every second. Whether serving APIs, delivering static assets, streaming content, or responding to browser requests, compression plays a vital role in improving performance while reducing bandwidth consumption. One of the most efficient compression algorithms available today is Brotli, developed by
PHP2Shell Explained: Understanding the Critical PHP Vulnerabilities (CVE-2026-109618 & CVE-2026-109619)
Introduction When security vulnerabilities affect a widely deployed technology, the consequences often extend far beyond individual organizations. That is precisely the case with PHP2Shell, the name given to two critical Remote Code Execution (RCE) vulnerabilities tracked as CVE-2026-109618 and CVE-2026-109619. Unlike application-specific vulnerabilities that impact
CVE-2026-99999 Explained: Understanding the Critical Linux Kernel Vulnerability That Could Enable Guest-to-Host Escape
The cybersecurity landscape evolves every day, but only a handful of vulnerabilities fundamentally change how organizations think about infrastructure security. CVE-2026-99999 is one of those vulnerabilities. Disclosed in October 2026 and widely referred to by the security community as PwnEscape, this Linux kernel vulnerability highlights an important truth:
Why SSL/HTTPS Is Essential for Every Modern Website
In today's digital world, website security is no longer optional—it's a necessity. Whether you run a personal blog, an eCommerce store, a business website, or a SaaS platform, protecting your visitors' data should be one of your highest priorities. One of the simplest and
HTTP 304 Status Code: Meaning and How to Fix It
When browsing websites, loading pages quickly is important for both users and search engines. One HTTP response that helps improve website performance is the HTTP 304 Status Code. If you’ve seen a “304 Not Modified” message in browser developer tools, server logs, or SEO audit reports, you may wonder
Why Linux Servers Are Better for Cloud Hosting
Linux servers dominate the cloud hosting industry because they are secure, stable, lightweight, and cost-effective. Most cloud platforms including AWS, Google Cloud, and Azure heavily rely on Linux-based infrastructure. Advantages of Linux Servers Better Performance Linux consumes fewer system resources compared to Windows Server. Strong Security Linux has
What is DevOps? A Beginner’s Guide for Businesses in Nepal
Digital transformation is changing how businesses operate in Nepal. Companies are now focusing on faster software delivery, better infrastructure management, and reliable cloud systems. This is where DevOps becomes important. DevOps is a modern IT approach that combines software development (Dev) and IT operations (Ops). The goal is to improve
AWS vs Traditional Hosting: Which is Better?
Businesses today must choose between traditional hosting and cloud hosting platforms like AWS. Traditional hosting uses fixed physical or virtual servers, while AWS provides scalable cloud infrastructure. Understanding the differences helps businesses make better infrastructure decisions. Traditional Hosting Traditional hosting includes: * Shared hosting * VPS hosting * Dedicated servers Advantages * Lower initial
Why Every Business Website Needs Automatic Backups
In today’s digital world, a business website is far more than an online brochure. It is a company’s storefront, marketing engine, customer communication platform, sales system, and often the center of daily operations. Whether you run a startup, eCommerce store, SaaS platform, agency website, or corporate portal, your