Focused on sharing Linux/Unix content, covering fundamentals, system development, network programming, automation/operations, cloud computing, and related professional knowledge.
Linus Torvalds sharply criticized the case‑insensitive feature in file systems as a huge mistake, warning that it introduces serious security vulnerabilities by allowing mismatched filenames and Unicode characters to be treated as equivalent, undermining user‑space security checks and exposing systems to attacks.
This guide walks you through a series of practical security measures for CentOS 7/8—including creating non‑root users, tightening SSH settings, enforcing password policies, securing logging, and applying kernel hardening—so you can significantly reduce the risk of unauthorized access and system compromise.
This article traces the history of mobile data interfaces—from early parallel and serial ports through USB Type‑A and the reversible Type‑C, up to Thunderbolt 3 and 4—explaining their technical trade‑offs and why newer standards dominate today.
This article translates and analyzes Lennart Heim’s deep dive into Huawei’s Ascend 910C AI accelerator, covering its dual‑chip architecture, packaging trade‑offs, performance versus NVIDIA’s H100 and upcoming B200, mysterious supply‑chain origins, and the broader strategic implications for China’s AI competition.
This guide explains Linux file permission concepts, from basic read/write/execute rights and numeric representations to advanced SetUID, SetGID, sticky bits, default umask settings, ownership changes, and ACL strategies, with practical chmod examples and command-line demonstrations.
This article explains the fundamental differences between HTTP and HTTPS, how internet messages travel through DNS and routers, the roles of IP and MAC addresses, port conventions, request/response structures, encryption methods, digital certificates, and compares cookies with server‑side sessions for state management.
This guide explains how to use the command‑line version of WoeUSB on Ubuntu or other Linux distributions to create a bootable Windows 11 installation USB, covering repository setup, installation, device identification with lsblk, and the exact sudo command to write the ISO.
This guide compares DeepSeek’s local and online versions, outlines hardware and privacy advantages of offline deployment, and provides a detailed step‑by‑step tutorial—including Ollama installation, model selection, command execution, and UI plugin setup—to help users run DeepSeek on their own machines.
This guide walks through practical Linux security hardening on RHEL 7, covering account lockdown, password policies, SELinux activation, SSH port changes, login restrictions, file immutability, compiler and log protection, and minimal firewall rules to elevate the system to a higher security level.
Tscanplus is a comprehensive network security and operations platform that quickly discovers and identifies assets, builds an asset database, and offers features such as port scanning, service detection, URL fingerprinting, POC validation, weak‑password guessing, encoding tools, privilege‑escalation aids, and more, with usage screenshots and a GitHub download link.
