AKAyan Kumar Nathinafunnynut.hashnode.dev·Apr 4 · 3 min readLinuxwala | What happens when you hit "cat" on Linux?Most people think a simple command like: #cat /var/log/syslog …is trivial. It’s not. It’s one of the most coordinated, high-speed relay races your computer performs, every single time you hit Enter! L00
AKAyan Kumar Nathinafunnynut.hashnode.dev·Jan 20, 2025 · 5 min readSystemd - why not init anyway (notes - no particular order)Overview of Systemd Systemd is a modern init system and service manager for Linux operating systems. It is designed to overcome the limitations of the traditional SysVinit and Upstart systems. Systemd is responsible for bootstrapping the user space a...00
AKAyan Kumar Nathinafunnynut.hashnode.dev·Jan 20, 2025 · 4 min readCharacter - or a lack thereof 🥶Characteristics in Linux and Their Role in Privilege Escalation Linux is a powerful and versatile operating system widely used in servers, desktops, and embedded systems. Its architecture, permissions, and configurations define its characteristics, s...00
AKAyan Kumar Nathinafunnynut.hashnode.dev·Jan 20, 2025 · 3 min readSUid and privilege Escalation (or how to not @#$% up your Linux Server :-)What is SUID in Linux? SUID (Set User ID) is a special permission bit in Linux/Unix systems that allows users to execute a file with the permissions of the file owner, instead of the permissions of the user running the file. This is particularly usef...00
AKAyan Kumar Nathinafunnynut.hashnode.dev·Jan 20, 2025 · 2 min readJust what is "2>/dev/null" anyways 🤷♂️The expression 2>/dev/null is a common syntax used in Unix-like operating systems (such as Linux) to redirect error messages (standard error) to a special "null device" (which essentially discards the output). Let’s break it down character by charact...00