APAmaresh Pelletiindevtoolhub.hashnode.dev·3h ago · 2 min readLinux File Permissions Explained: chmod, chown, and umaskOriginally published on DevToolHub. chmod 755, chmod 2775, umask 022 — the numbers make sense once you see where each digit comes from. This is the actual bit math, plus the chmod-and-symlinks gotcha00
MIMominur Islaminmominur-islam.hashnode.dev·1d ago · 8 min readDevOps Journey #1: Essential Linux Commands Every Beginner Should KnowIntroduction As I begin the technical phase of my DevOps Journey, I decided to start with Linux. Linux isn't completely new to me. During my academic years and personal projects, I had opportunities t01I
MRMounika Reddy Indyalainmounikaindyala.hashnode.dev·10h ago · 11 min readShell Scripting for DevOps Engineers — File Handling & Text ProcessingRead, search, filter, and analyze files efficiently using Shell commands — a must-have skill for DevOps automation and troubleshooting. In the previous article, we learned about Arrays in Shell Script01I
UKUk Kintech-learning-sachin.hashnode.dev·11h ago · 6 min readLinux Process Scheduling — What System Administrators Need to KnowThe process scheduler is one of the most consequential and least directly visible components of a Linux system — it determines which process gets CPU time, when, and for how long, making decisions tha00
SLSiddharth Lalwaniinsystemsfromscratch.hashnode.dev·2d ago · 13 min readHow to Build an Online Judge, Part 3: Running Python in DockerUnderstand docker images, containers, file mounts, and the limits that control a program’s environment. 1. Why introduce Docker? In the previous article, we used Python's subprocess module to run anot00
AJAmit Joshiindevnation.joshisfitness.com·2d ago · 11 min readF# as a Linux Kernel Module Development OrchestratorIntroduction Linux kernel module development normally involves a repetitive sequence: make sign rmmod insmod dmesg When experimenting with kernel modules, repeating these commands manually quickly be00
MCMatteo Collinainblog.platformatic.dev·4d ago · 4 min readMore threads on an already busy machineThe bcrypt numbers in Nub’s thread-pool PR make a good case for increasing the pool on the machines tested. The part I disagree with is choosing that setting for every application from its CPU count. 10
MRMounika Reddy Indyalainmounikaindyala.hashnode.dev·3d ago · 10 min readShell Scripting for DevOps Engineers — ArraysManage multiple values efficiently with Arrays and automate multiple servers, applications, environments, and resources using Shell Scripting. In the previous article, we learned about Functions in Sh00
Aankitoinankitsec.hashnode.dev·3d ago · 3 min readLevel 0 Complete: Automating System Health and Security ToolingA few months ago, I stepped back from public posting. If I am being entirely honest, I got distracted. I fell into the trap of chasing a social media streak rather than focusing on actual engineering.00
UKUk Kintech-learning-sachin.hashnode.dev·3d ago · 3 min readLinux Network Interfaces — What System Administrators Need to UnderstandNetwork interface management is one of those Linux topics that has been in transition for long enough that most documentation you encounter online is written for either the old tools or the new ones, 00
