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Labby

Develop skills in Linux, DevOps, Cybersecurity, Programming, Data Science, and more through interactive labs and real-world projects.

Hong Kong Joined on Jun 11, 2024 https://labex.io/

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723 posts published

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Mastering Kali Linux: File Management, User Admin, and Networking Tools Guide

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Jan 12

Mastering Kali Linux: File Management, User Admin, and Networking Tools Guide

#kalilinux #cybersecurity #networking #linux

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2 min read

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Mastering NumPy Randomness and Einsum: Advanced Scientific Computing in Python

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Jan 11

Mastering NumPy Randomness and Einsum: Advanced Scientific Computing in Python

#numpy #python #datascience #einsum

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2 min read

Matplotlib Data Storytelling: Customizing Line Plots and Image Histogram Statistics

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Jan 10

Matplotlib Data Storytelling: Customizing Line Plots and Image Histogram Statistics

#matplotlib #python #dataviz #numpy

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2 min read

Automate CI/CD: Introduction to Jenkins Pipelines and Parameterized Freestyle Projects

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Jan 9

Automate CI/CD: Introduction to Jenkins Pipelines and Parameterized Freestyle Projects

#jenkins #devops #automation #cicd

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2 min read

Build a Responsive Pet's House Website with Flexbox and CSS Grid Animations

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Jan 8

Build a Responsive Pet's House Website with Flexbox and CSS Grid Animations

#css #frontend #webdev #layout

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2 min read

Java Mastery: Read XML, Substring Replacement, and Remove ArrayList Duplicates

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Jan 7

Java Mastery: Read XML, Substring Replacement, and Remove ArrayList Duplicates

#java #xml #arraylist #programming

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2 min read

Python Performance & Logic: From Execution Timing to Class Inheritance

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Jan 6

Python Performance & Logic: From Execution Timing to Class Inheritance

#python #coding #oop #tutorial

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3 min read

Build MongoDB User Profiles and Filter Collections: A Hands-on Query Guide

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Jan 5

Build MongoDB User Profiles and Filter Collections: A Hands-on Query Guide

#mongodb #nosql #database #backend

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2 min read

Verify Redis Server Status and Master Pub/Sub Messaging with Hands-On Set Operations

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Jan 4

Verify Redis Server Status and Master Pub/Sub Messaging with Hands-On Set Operations

#redis #database #backend #nosql

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2 min read

Build Interactive React Components and Responsive Navigation with Custom Hooks

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Jan 3

Build Interactive React Components and Responsive Navigation with Custom Hooks

#react #frontend #vite #javascript

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2 min read

Master CSS Backgrounds, Selectors, and Margins: 3 Hands-on Layout Labs

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Jan 1

Master CSS Backgrounds, Selectors, and Margins: 3 Hands-on Layout Labs

#css #frontend #webdev #design

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2 min read

Master Docker Build Image from Dockerfile: A Medieval to Space Station Adventure

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Dec 31 '25

Master Docker Build Image from Dockerfile: A Medieval to Space Station Adventure

#docker #devops #containers #tutorial

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3 min read

Building Resilient Embedded Apps: Working with Data and Constraint Management in SQLite

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Dec 30 '25

Building Resilient Embedded Apps: Working with Data and Constraint Management in SQLite

#sqlite #database #embedded #sql

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2 min read

Mastering Golang: Craft Personalized Greetings and Modular Math Packages

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Dec 29 '25

Mastering Golang: Craft Personalized Greetings and Modular Math Packages

#go #backend #programming #tutorial

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2 min read

Master Data Science Basics: 4 Python Labs for Strings, Sets, and NumPy Arrays

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Dec 28 '25

Master Data Science Basics: 4 Python Labs for Strings, Sets, and NumPy Arrays

#python #datascience #numpy #coding

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3 min read

Java Mastery: Rescue Princess with Conditional Execution and Student Score Ranking System

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Dec 27 '25

Java Mastery: Rescue Princess with Conditional Execution and Student Score Ranking System

#java #programming #logic #data

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2 min read

Automate Git Workflows: Installing Jenkins with Docker for CI/CD Pipelines

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Dec 26 '25

Automate Git Workflows: Installing Jenkins with Docker for CI/CD Pipelines

#jenkins #docker #git #devops

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2 min read

5 Python DevOps Skills: Mastering JSON Extraction, Error Handling, and CLI Tools

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Dec 25 '25

5 Python DevOps Skills: Mastering JSON Extraction, Error Handling, and CLI Tools

#python #devops #automation #scripting

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3 min read

Mastering Pandas: From Handling NaN and Duplicates to Advanced Sales Data Grouping

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Dec 24 '25

Mastering Pandas: From Handling NaN and Duplicates to Advanced Sales Data Grouping

#pandas #python #data #analytics

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3 min read

Master PostgreSQL on Kali Linux: From Basic Queries to Advanced CTEs

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Dec 23 '25

Master PostgreSQL on Kali Linux: From Basic Queries to Advanced CTEs

#postgres #sql #database #kalilinux

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2 min read

Building Resilient PostgreSQL Architectures: From Table Creation to Advanced Error Handling

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Dec 22 '25

Building Resilient PostgreSQL Architectures: From Table Creation to Advanced Error Handling

#postgres #sql #database #backend

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2 min read

5 Python DevOps Scripts: From Regex Extraction to Battle Report Automation

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Dec 21 '25

5 Python DevOps Scripts: From Regex Extraction to Battle Report Automation

#python #devops #automation #scripting

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3 min read

Mastering Matplotlib: Building Dynamic Bar Charts, Histograms, and Multi-Panel Subplots

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Dec 20 '25

Mastering Matplotlib: Building Dynamic Bar Charts, Histograms, and Multi-Panel Subplots

#matplotlib #python #dataviz #datascience

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2 min read

Build a React Colour Filter Application and Festive Wish List App

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Dec 19 '25

Build a React Colour Filter Application and Festive Wish List App

#react #frontend #javascript #webdev

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2 min read

Mastering Kubernetes: Hands-on with Run, Describe, Logs, and DaemonSets

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Dec 18 '25

Mastering Kubernetes: Hands-on with Run, Describe, Logs, and DaemonSets

#kubernetes #devops #cloud #containers

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2 min read

Web Development Logic: 5 Essential Challenges (Combinations, Subsequences, and BST Traversal)

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Dec 17 '25

Web Development Logic: 5 Essential Challenges (Combinations, Subsequences, and BST Traversal)

#webdev #algorithms #python #datastructures

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3 min read

4 scikit-learn Labs: Linear Regression, Digit Recognition, Credit Risk, and SVM Iris Classification

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Dec 16 '25

4 scikit-learn Labs: Linear Regression, Digit Recognition, Credit Risk, and SVM Iris Classification

#scikitlearn #machinelearning #python #datascience

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3 min read

Redis Hands-On: 5 Labs Covering Data Structures, Advanced Key Management, and HyperLogLog

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Dec 15 '25

Redis Hands-On: 5 Labs Covering Data Structures, Advanced Key Management, and HyperLogLog

#redis #caching #hyperloglog #tutorial

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3 min read

CompTIA Hands-On Labs: Digital Forensics Integrity, Docker Container Security, and Linux Endpoint Hardening

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Dec 14 '25

CompTIA Hands-On Labs: Digital Forensics Integrity, Docker Container Security, and Linux Endpoint Hardening

#comptia #cybersecurity #linux #docker

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2 min read

Linux Sysadmin Mastery: 5 Hands-On Labs for Process, SELinux, IP, Kernel Modules, and Git

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Dec 13 '25

Linux Sysadmin Mastery: 5 Hands-On Labs for Process, SELinux, IP, Kernel Modules, and Git

#linux #sysadmin #devops #labs

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3 min read

Kali Linux Lab Path: Master Nmap Scanning, OS Verification, and File Management Essentials

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Dec 12 '25

Kali Linux Lab Path: Master Nmap Scanning, OS Verification, and File Management Essentials

#kalilinux #nmap #hacking #security

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3 min read

Kubernetes Scheduling & Debugging: Taints, Port-Forward, and Annotate Practical Challenges

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Dec 11 '25

Kubernetes Scheduling & Debugging: Taints, Port-Forward, and Annotate Practical Challenges

#kubernetes #scheduling #debugging #kubectl

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2 min read

Redis Fundamentals: 4 Hands-On Labs on Persistence, Data Structures, and BLPOP

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Dec 10 '25

Redis Fundamentals: 4 Hands-On Labs on Persistence, Data Structures, and BLPOP

#redis #persistence #datastructures #tutorial

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3 min read

CSS Lab: Create Fixed Positioning Layout, Animated Social Buttons, and Perfect Rounded Corners

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Dec 9 '25

CSS Lab: Create Fixed Positioning Layout, Animated Social Buttons, and Perfect Rounded Corners

#css #layout #animation #tutorial

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2 min read

Golang String Fundamentals, Switch-Case, and Goto: 3 Essential Hands-On Labs

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Dec 8 '25

Golang String Fundamentals, Switch-Case, and Goto: 3 Essential Hands-On Labs

#go #strings #controlflow #tutorial

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2 min read

PostgreSQL DBA Path: Setup, Table Creation, and Database Maintenance Labs

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Dec 7 '25

PostgreSQL DBA Path: Setup, Table Creation, and Database Maintenance Labs

#postgres #database #dba #tutorial

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2 min read

CSS Projects: Grid Pet Showcase, Fan Hover Effects, and Responsive News Homepage Tutorial

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Dec 6 '25

CSS Projects: Grid Pet Showcase, Fan Hover Effects, and Responsive News Homepage Tutorial

#css #cssgrid #webdev #animation

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2 min read

Kubernetes Hands-On: PersistentVolumes, CronJobs, ConfigMaps, and Secure Kubeconfig Management Labs

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Dec 5 '25

Kubernetes Hands-On: PersistentVolumes, CronJobs, ConfigMaps, and Secure Kubeconfig Management Labs

#kubernetes #k8s #devops #tutorial

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2 min read

5 Hands-On Linux Labs: Master File System Paths, User Management, and Command Pipelines

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Dec 4 '25

5 Hands-On Linux Labs: Master File System Paths, User Management, and Command Pipelines

#linux #commands #sysadmin #tutorial

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3 min read

4 MySQL Labs: Automate Tasks with Event Scheduler, Master CTEs, and Pro Data Handling

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Dec 3 '25

4 MySQL Labs: Automate Tasks with Event Scheduler, Master CTEs, and Pro Data Handling

#mysql #automation #ctes #database

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2 min read

React Project Path: Build 5 Practical Apps (Notes, Theme Switcher, Custom Hooks) in 90 Minutes

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Dec 2 '25

React Project Path: Build 5 Practical Apps (Notes, Theme Switcher, Custom Hooks) in 90 Minutes

#react #javascript #tutorial #webdev

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3 min read

Shell Scripting Mastery: 5 Challenges - Recursive Functions, Bubble Sort CLI, and System Config Analysis

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Dec 1 '25

Shell Scripting Mastery: 5 Challenges - Recursive Functions, Bubble Sort CLI, and System Config Analysis

#shell #bash #linux #scripting

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3 min read

Build 3 React Apps: Responsive Navigation Hook, Context Theme Switcher, Dynamic UI Labs

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Nov 30 '25

Build 3 React Apps: Responsive Navigation Hook, Context Theme Switcher, Dynamic UI Labs

#react #customhooks #contextapi #frontend

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2 min read

NumPy Labs: Minkowski Distance, Image Edge Detection, and Array Reshaping for Data Science

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Nov 29 '25

NumPy Labs: Minkowski Distance, Image Edge Detection, and Array Reshaping for Data Science

#numpy #datascience #python #arrays

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3 min read

MongoDB Labs: Write Queries, Design User Profiles, and Master CRUD Operations

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Nov 28 '25

MongoDB Labs: Write Queries, Design User Profiles, and Master CRUD Operations

#mongodb #nosql #database #tutorial

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2 min read

Jenkins CI/CD Starter Kit: 5 Labs on Docker, Git Integration, and User Management

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Nov 27 '25

Jenkins CI/CD Starter Kit: 5 Labs on Docker, Git Integration, and User Management

#jenkins #devops #cicd #docker

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3 min read

Red Hat Enterprise Linux Troubleshooting: 4 Labs on LVM Extension, Permissions, SELinux & Shell Scripting

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Nov 26 '25

Red Hat Enterprise Linux Troubleshooting: 4 Labs on LVM Extension, Permissions, SELinux & Shell Scripting

#rhel #linux #selinux #lvm

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2 min read

MySQL Tutorial: Master Table Structure, User Privileges, and the Movie Data Challenge in 3 Practical Labs

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Nov 25 '25

MySQL Tutorial: Master Table Structure, User Privileges, and the Movie Data Challenge in 3 Practical Labs

#mysql #sql #database #security

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2 min read

Core HTML Skills: Build a Random Greeting Card Generator, Takeout Review System, and Vue Data Visualization

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Nov 24 '25

Core HTML Skills: Build a Random Greeting Card Generator, Takeout Review System, and Vue Data Visualization

#html #vue #webdev #tutorial

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2 min read

Jenkins CI/CD: Secure User Access, Automate Freestyle Builds, and Integrate Git Source Control

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Nov 23 '25

Jenkins CI/CD: Secure User Access, Automate Freestyle Builds, and Integrate Git Source Control

#jenkins #ci #devops #git

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2 min read

DevOps Foundations: 5 Hands-On Labs on Linux Security (SELinux, Permissions) and Podman/Skopeo Container Management

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Nov 22 '25

DevOps Foundations: 5 Hands-On Labs on Linux Security (SELinux, Permissions) and Podman/Skopeo Container Management

#devops #linux #podman #security

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2 min read

MySQL Database Performance: Managing Indexes, SHA-256 Encryption, and Secure Data Insertion

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Nov 21 '25

MySQL Database Performance: Managing Indexes, SHA-256 Encryption, and Secure Data Insertion

#mysql #database #indexing #sql

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2 min read

SQLite Advanced Labs: CTE Queries, Foreign Keys, and Data Integrity for Embedded Apps

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Nov 20 '25

SQLite Advanced Labs: CTE Queries, Foreign Keys, and Data Integrity for Embedded Apps

#sqlite #sql #database #integrity

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3 min read

MySQL Labs: Change Default Value, Add Constraints, and Insert Student Data

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Nov 19 '25

MySQL Labs: Change Default Value, Add Constraints, and Insert Student Data

#mysql #sql #database #tutorial

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2 min read

CompTIA Prep: 4 Hands-On Labs for Linux Hardening, Log Analysis, and Docker Security

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Nov 18 '25

CompTIA Prep: 4 Hands-On Labs for Linux Hardening, Log Analysis, and Docker Security

#comptia #linux #security #docker

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2 min read

Practical Redis Database Mastery: Labs on Sorted Sets, Performance Tuning, and List Commands

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Nov 17 '25

Practical Redis Database Mastery: Labs on Sorted Sets, Performance Tuning, and List Commands

#redis #database #performance #tutorial

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2 min read

Redis Basic Data Management: Key-Value Operations and Atomic Counters Tutorial

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Nov 16 '25

Redis Basic Data Management: Key-Value Operations and Atomic Counters Tutorial

#redis #keyvalue #counters #tutorial

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2 min read

Ansible Automation Mastery: Hands-On Labs for Inventory Grouping, Apt Package Management, and the Fetch Module

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Nov 15 '25

Ansible Automation Mastery: Hands-On Labs for Inventory Grouping, Apt Package Management, and the Fetch Module

#ansible #automation #tutorial #configuration

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2 min read

Java Programming Labs: Calculate Sum of Digits, Standard Deviation, and Coordinate Subtraction (5 Hands-on Exercises)

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Nov 14 '25

Java Programming Labs: Calculate Sum of Digits, Standard Deviation, and Coordinate Subtraction (5 Hands-on Exercises)

#java #programming #tutorial #standarddeviation

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3 min read

Nmap Hands-On: Explore Verbosity, UDP Scanning, and Network Discovery Techniques

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Nov 13 '25

Nmap Hands-On: Explore Verbosity, UDP Scanning, and Network Discovery Techniques

#nmap #networkscanning #cybersecurity #udpscan

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2 min read