dommy

Linux|sysadmin|networking|automation |coding enthusiastic

[𝐇𝐚𝐦𝐳𝐚 | Networking Guy @Hamzaonchain]

Hacking a login page using brup suite

( FOR EDUCATION PURPOSE )

[Sevalla @sevalla_hosting]

CI/CD for Docker Applications 🐳🚀

Docker makes deployments more consistent, while CI/CD automates the entire delivery process.

Here's how a typical pipeline works 👇

1️⃣ Code - Developers push application code and Dockerfile changes to Git.

2️⃣ Build Image - CI builds a reproducible Docker image containing the app and its dependencies.

3️⃣ Test - Automated tests, linting, and security scans validate the image.

4️⃣ Push to Registry - Approved images are tagged and stored in a container registry.

5️⃣ Deploy - CD rolls out the tested image to staging or production.

6️⃣ Monitor - Track logs, metrics, and container health after deployment.

Popular deployment targets:

🐳 Docker Compose - Simple deployments
☸️ Kubernetes - Container orchestration
☁️ AWS ECS - Managed container deployments
✅ Consistent environments
⚡ Faster releases
🛡️ Safer deployments
🔄 Easier rollbacks

[yasir khan @yasPMG]

@piersmorgan @premierleague Reminder to these delusional fools 🫵

[YourCloudDude | AWS & Python @yourclouddude]

Stop studying every AWS service equally for SAA.

Prioritize them like this:

MUST KNOW

① IAM → roles, policies, least privilege
② VPC → subnets, routing, NAT, IGW
③ EC2 → instances, pricing, placement
④ ELB + Auto Scaling → HA + scaling
⑤ S3 → classes, lifecycle, replication
⑥ RDS + Aurora → Multi-AZ, replicas
⑦ DynamoDB → scaling, indexes, capacity
⑧ Route 53 → DNS + routing policies
⑨ CloudFront → caching + global delivery
⑩ Lambda → serverless architectures

KNOW WELL

⑪ EBS + EFS → storage decisions
⑫ SQS + SNS → decoupling + messaging
⑬ API Gateway → managed APIs
⑭ ElastiCache → caching + performance
⑮ KMS → encryption + key management
⑯ CloudWatch → metrics, logs, alarms
⑰ CloudTrail → API activity + auditing
⑱ EventBridge → event-driven architecture
⑲ AWS Backup → centralized backups
⑳ Direct Connect + VPN → hybrid connectivity

NICE TO KNOW

㉑ ECS / EKS / Fargate → containers
㉒ Athena / Glue → analytics + ETL
㉓ WAF + Shield → edge protection
㉔ Transit Gateway / PrivateLink → advanced networking
㉕ DataSync / DMS → migration scenarios

Don’t just learn WHAT each service does.

For SAA, learn:

→ When to choose it
→ When NOT to choose it
→ What it costs
→ How it scales
→ What happens when it fails

That’s where the exam gets interesting.

[YourCloudDude | AWS & Python @yourclouddude]

AWS CERTIFICATION ROADMAP — 2026
│
├── 📁 1. Start Here — Foundations
│ ├── 📁 AWS Certified Cloud Practitioner
│ └── 📁 AWS Certified AI Practitioner
│
├── 📁 2. Choose Your Career Path
│
│ ├── 🏗️ Cloud / Solutions Architect
│ │ ├── Solutions Architect – Associate
│ │ ├── Build architecture projects
│ │ └── Solutions Architect – Professional
│
│ ├── 💻 Cloud Developer
│ │ ├── Developer – Associate
│ │ ├── Build serverless + CI/CD projects
│ │ └── DevOps Engineer – Professional
│
│ ├── ⚙️ CloudOps / DevOps
│ │ ├── CloudOps Engineer – Associate
│ │ ├── Practice monitoring + automation
│ │ └── DevOps Engineer – Professional
│
│ ├── 📊 Data Engineer
│ │ ├── Data Engineer – Associate
│ │ ├── Build AWS data pipelines
│ │ └── Add Security / AI specialization
│
│ ├── 🤖 AI / Machine Learning
│ │ ├── AI Practitioner
│ │ ├── Machine Learning Engineer – Associate
│ │ └── Generative AI Developer – Professional
│
│ └── 🔐 Cloud Security
│ ├── Build strong AWS fundamentals
│ ├── Solutions Architect / CloudOps Associate
│ └── Security – Specialty
│
├── 📁 3. Advanced Certifications
│ ├── Solutions Architect – Professional
│ ├── DevOps Engineer – Professional
│ ├── Generative AI Developer – Professional
│ └── Security – Specialty
│
└── 📁 4. Don’t Forget the Projects
    ├── 3-Tier AWS Architecture
    ├── Serverless Application
    ├── CI/CD Pipeline
    ├── Highly Available Application
    └── Monitoring + Security Project

[YourCloudDude | AWS & Python @yourclouddude]

NETWORKING SKILL ROADMAP
│
├── 📁 1. Networking Basics
│ ├── 📁 What is a Network?
│ ├── 📁 LAN vs WAN
│ ├── 📁 IP Addresses
│ ├── 📁 Public vs Private IP
│ ├── 📁 MAC Addresses
│ └── 📁 Ports & Protocols
│
├── 📁 2. TCP/IP Fundamentals
│ ├── 📁 TCP vs UDP
│ ├── 📁 TCP 3-Way Handshake
│ ├── 📁 DNS
│ ├── 📁 DHCP
│ ├── 📁 HTTP vs HTTPS
│ └── 📁 ICMP
│
├── 📁 3. IP Addressing
│ ├── 📁 IPv4 Basics
│ ├── 📁 CIDR Notation
│ ├── 📁 Subnet Masks
│ ├── 📁 Subnetting
│ ├── 📁 Default Gateway
│ └── 📁 NAT
│
├── 📁 4. Routing & Switching
│ ├── 📁 Routers
│ ├── 📁 Switches
│ ├── 📁 Routing Tables
│ ├── 📁 Static vs Dynamic Routing
│ ├── 📁 VLANs
│ └── 📁 ARP
│
├── 📁 5. Network Security
│ ├── 📁 Firewalls
│ ├── 📁 Security Groups
│ ├── 📁 Network ACLs
│ ├── 📁 VPNs
│ ├── 📁 TLS/SSL Basics
│ └── 📁 Zero Trust Basics
│
├── 📁 6. Cloud Networking
│ ├── 📁 VPCs
│ ├── 📁 Public & Private Subnets
│ ├── 📁 Internet Gateway
│ ├── 📁 NAT Gateway
│ ├── 📁 Route Tables
│ └── 📁 Load Balancers
│
├── 📁 7. Advanced Networking
│ ├── 📁 VPC Peering
│ ├── 📁 Transit Gateway
│ ├── 📁 DNS Routing
│ ├── 📁 CDN
│ ├── 📁 Proxy vs Reverse Proxy
│ └── 📁 Hybrid Networking
│
└── 📁 8. Practice Real Traffic Flows
├── 📁 Browser → Website
├── 📁 User → Load Balancer → Server
├── 📁 Public → Private Subnet
├── 📁 App → Database
├── 📁 VPC → Internet
└── 📁 On-Prem → Cloud

[Ahmedkhan @Ahmed___khaan]

Linux isn’t just one operating system. It has different distributions, each built for different purposes.

🌀 Debian Family
· Debian – Stable & reliable
· Kali Linux – Cybersecurity & pentesting
· Ubuntu – Beginner-friendly & versatile
· Debian Pure – Specialized Debian systems
· Parrot OS – Security & privacy

🎩 Red Hat Family
· RHEL – Enterprise & servers
· Fedora – Modern & cutting-edge
· CentOS – Server-focused
· AlmaLinux – Enterprise & RHEL-compatible

🏹 Arch Family
· Arch Linux – Minimal & customizable
· BlackArch – Security & pentesting
· Manjaro – User-friendly Arch
· EndeavourOS – Simple Arch experience

⚙️ Slackware Family
· Slackware – Traditional & lightweight
· Salix OS – Easier Slackware experience

🧩 Gentoo Family
· Gentoo – Highly customizable
· Funtoo – Gentoo-based & flexible

One kernel. Many choices. Different purposes.🐧

[Dhanian 🗯️ @e_opore]

📂 LINUX ROADMAP

┣ 📂 01 — Linux Fundamentals
┃ ┣ 📂 What Is Linux?
┃ ┣ 📂 Linux Distributions
┃ ┣ 📂 Kernel & Architecture
┃ ┣ 📂 Filesystem Hierarchy
┃ ┣ 📂 Terminal & Shell
┃ ┗ 📂 Linux Man Pages
┣ 📂 02 — Command Line
┃ ┣ 📂 pwd, ls, cd
┃ ┣ 📂 cp, mv, rm
┃ ┣ 📂 cat, less, head, tail
┃ ┣ 📂 grep, find, locate
┃ ┣ 📂 sort, uniq, cut, awk, sed
┃ ┗ 📂 Pipes & Redirection
┣ 📂 03 — Files & Directories
┃ ┣ 📂 Filesystem Navigation
┃ ┣ 📂 File Types
┃ ┣ 📂 Hard & Symbolic Links
┃ ┣ 📂 Mount Points
┃ ┣ 📂 Disk Usage
┃ ┗ 📂 File Compression
┣ 📂 04 — Users & Permissions
┃ ┣ 📂 Users & Groups
┃ ┣ 📂 chmod
┃ ┣ 📂 chown & chgrp
┃ ┣ 📂 sudo
┃ ┣ 📂 /etc/passwd
┃ ┣ 📂 /etc/shadow
┃ ┗ 📂 ACLs
┣ 📂 05 — Processes & Jobs
┃ ┣ 📂 Process Management
┃ ┣ 📂 ps & top
┃ ┣ 📂 htop
┃ ┣ 📂 Signals
┃ ┣ 📂 Background & Foreground Jobs
┃ ┣ 📂 kill & pkill
┃ ┗ 📂 Process Priority
┣ 📂 06 — Shell & Bash
┃ ┣ 📂 Bash Basics
┃ ┣ 📂 Environment Variables
┃ ┣ 📂 Shell Expansion
┃ ┣ 📂 Functions & Aliases
┃ ┣ 📂 Bash Scripting
┃ ┣ 📂 Conditional Statements
┃ ┗ 📂 Loops & Automation
┣ 📂 07 — Package Management
┃ ┣ 📂 APT
┃ ┣ 📂 DNF
┃ ┣ 📂 Pacman
┃ ┣ 📂 Snap
┃ ┣ 📂 Flatpak
┃ ┗ 📂 Software Repositories

┣ 📂 08 — Networking
┃ ┣ 📂 IP Addresses
┃ ┣ 📂 TCP/IP
┃ ┣ 📂 DNS
┃ ┣ 📂 SSH
┃ ┣ 📂 curl & wget
┃ ┣ 📂 ping & traceroute
┃ ┣ 📂 ss & netstat
┃ ┗ 📂 Network Configuration
┣ 📂 09 — Storage & Filesystems
┃ ┣ 📂 HDD & SSD
┃ ┣ 📂 Partitions
┃ ┣ 📂 ext4
┃ ┣ 📂 XFS & Btrfs
┃ ┣ 📂 LVM
┃ ┣ 📂 RAID
┃ ┗ 📂 /etc/fstab
┣ 📂 10 — System Administration
┃ ┣ 📂 systemd
┃ ┣ 📂 Services
┃ ┣ 📂 Cron & Timers
┃ ┣ 📂 Logs & journalctl
┃ ┣ 📂 Boot Process
┃ ┣ 📂 Kernel Management
┃ ┗ 📂 System Monitoring
┣ 📂 11 — Linux Security
┃ ┣ 📂 SSH Hardening
┃ ┣ 📂 Firewalls
┃ ┣ 📂 SELinux
┃ ┣ 📂 AppArmor
┃ ┣ 📂 File Permissions
┃ ┣ 📂 Security Auditing
┃ ┗ 📂 Vulnerability Management
┣ 📂 12 — Linux for Developers
┃ ┣ 📂 Git & GitHub
┃ ┣ 📂 Build Tools
┃ ┣ 📂 Environment Configuration
┃ ┣ 📂 Containers
┃ ┣ 📂 Docker
┃ ┣ 📂 Development Servers
┃ ┗ 📂 CI/CD
┣ 📂 13 — Linux for Cloud & DevOps
┃ ┣ 📂 AWS / Azure / GCP
┃ ┣ 📂 Virtual Machines
┃ ┣ 📂 Docker
┃ ┣ 📂 Kubernetes
┃ ┣ 📂 Terraform
┃ ┣ 📂 Ansible
┃ ┗ 📂 CI/CD Pipelines
┣ 📂 14 — Advanced Linux
┃ ┣ 📂 Kernel Internals
┃ ┣ 📂 System Calls
┃ ┣ 📂 Networking Internals
┃ ┣ 📂 Performance Tuning
┃ ┣ 📂 eBPF
┃ ┣ 📂 Containers Internals
┃ ┗ 📂 Troubleshooting

┗ 📂 15 — Practice & Projects
┣ 📂 Build a Linux Server
┣ 📂 Configure an SSH Server
┣ 📂 Deploy a Web Server
┣ 📂 Automate Tasks with Bash
┣ 📂 Configure a Firewall
┣ 📂 Monitor System Performance
┣ 📂 Build a Docker Host
┗ 📂 Create a Linux Home Lab

[𝐇𝐚𝐦𝐳𝐚 | Networking Guy @Hamzaonchain]

Here are some links to kickstart your Ethical hacking journey

- TryHackMe – Pre Security & Jr Penetration Tester paths
https://t.co/aVaDWBCoqd

- Hack The Box – Starting Point machines
https://t.co/oSVJRyUymA

- PortSwigger Web Security Academy (BEST for web hacking)
https://t.co/CvN1EoNTCZ

- OverTheWire Bandit (Linux + CTF fundamentals)
https://t.co/vX8OjswsFk

- OWASP Top 10 + WebGoat
https://t.co/ZVsZec2kg7

- Nmap Official Nmap Network Scanning Guide
https://t.co/OyyEKY9foW

- Metasploit Unleashed Course (Rapid7)
https://t.co/BOZ7Y2ecgn

- Linux Foundation Intro to Linux
https://t.co/fL6GyIyZms

- Linux natacad
https://t.co/TAbwfJ9NpS

- Cybrary Free PenTesting & Ethical Hacking courses
https://t.co/KJr6G670CF

- Offensive Security Penetration Testing Learning Path
https://t.co/TKASyR1nVo

- Bugcrowd University (Bug bounty basics)
https://t.co/SiGPvXLE7B…

- HackerOne Hacker101 (FREE course + CTF)
https://t.co/ryqYKDEqm8

-Professor Messer (Security+ playlist)
https://t.co/VbuemhD6Ta

You don't need a big budget to get started.

Pick one or two resources, stay consistent for the next 30 days, and document what you learn along the way.

[Nitin Gavhane @NitinGavhane_]

7 free tools every bug bounty hunter should know:

1. Burp Suite Community — Web testing
2. Caido — Web traffic analysis
3. Nuclei — Vulnerability scanning
4. Subfinder — Subdomain discovery
5. Katana — Web crawling
6. ffuf — Content discovery
7. Gitleaks — Secret detection

Learn the tools.
Understand the vulnerabilities.
Hunt within scope.
Submit quality reports.

#BugBounty #CyberSecurity #EthicalHacking #Pentesting #AppSec #InfoSec #WebSecurity #BugHunter

[YourCloudDude | AWS & Python @yourclouddude]

AWS SOLUTIONS ARCHITECT ROADMAP

│
├── 📁 1. Cloud Foundations
│ ├── 📁 Cloud Computing Basics
│ ├── 📁 AWS Regions & Availability Zones
│ ├── 📁 Shared Responsibility Model
│ ├── 📁 AWS Pricing Basics
│ └── 📁 Well-Architected Framework

│
├── 📁 2. Identity & Security
│ ├── 📁 IAM Users, Groups & Roles
│ ├── 📁 Policies & Permissions
│ ├── 📁 Least Privilege
│ ├── 📁 KMS & Encryption
│ └── 📁 Secrets Manager Basics

│
├── 📁 3. Compute
│ ├── 📁 EC2
│ ├── 📁 AMIs
│ ├── 📁 EBS
│ ├── 📁 Auto Scaling
│ ├── 📁 Elastic Load Balancing
│ └── 📁 Lambda Basics

│
├── 📁 4. Networking
│ ├── 📁 VPC
│ ├── 📁 Public & Private Subnets
│ ├── 📁 Route Tables
│ ├── 📁 Internet & NAT Gateways
│ ├── 📁 Security Groups vs NACLs
│ └── 📁 Route 53

│
├── 📁 5. Storage
│ ├── 📁 S3
│ ├── 📁 Storage Classes
│ ├── 📁 Lifecycle Policies
│ ├── 📁 EBS vs EFS
│ ├── 📁 Backup Strategies
│ └── 📁 CloudFront Basics

│
├── 📁 6. Databases
│ ├── 📁 RDS
│ ├── 📁 Aurora
│ ├── 📁 DynamoDB
│ ├── 📁 Multi-AZ vs Read Replicas
│ ├── 📁 ElastiCache
│ └── 📁 Choosing the Right Database

│
├── 📁 7. High Availability & Scaling
│ ├── 📁 Multi-AZ Architecture
│ ├── 📁 Auto Scaling Strategies
│ ├── 📁 Load Balancing
│ ├── 📁 Fault-Tolerant Design
│ └── 📁 Disaster Recovery Basics

│
├── 📁 8. Serverless & Integration
│ ├── 📁 Lambda
│ ├── 📁 API Gateway
│ ├── 📁 SQS
│ ├── 📁 SNS
│ ├── 📁 EventBridge
│ └── 📁 Step Functions Basics

│
├── 📁 9. Monitoring & Cost
│ ├── 📁 CloudWatch
│ ├── 📁 CloudTrail
│ ├── 📁 AWS Config
│ ├── 📁 Cost Explorer
│ ├── 📁 Budgets
│ └── 📁 Cost Optimization

│
├── 📁 10. Architecture Decisions
│ ├── 📁 Scalability
│ ├── 📁 Availability
│ ├── 📁 Security
│ ├── 📁 Performance
│ ├── 📁 Cost
│ └── 📁 Trade-Off Thinking

│
└── 📁 11. Build Real Architectures
├── 📁 Highly Available Web App
├── 📁 3-Tier Architecture
├── 📁 Serverless Application
├── 📁 Multi-Region Architecture
└── 📁 Disaster Recovery Design

[Nitin Gavhane @NitinGavhane_]

Bug bounty isn’t about finding a critical vulnerability every day.

Some days you find:
0 bugs.
3 duplicates.
5 N/A reports.
1 new technique.

That’s still progress.

Every failed test teaches you something about the target.

Build the habit:

Recon → Understand → Test → Analyze → Document → Repeat.

The goal isn’t to get lucky.

The goal is to become better at finding what others miss.

#BugBounty #CyberSecurity #EthicalHacking #WebSecurity #Pentesting #InfoSec

[Nitin Gavhane @NitinGavhane_]

Bug bounty recon tools worth knowing:

1. Subfinder — Passive subdomain discovery
2. Amass — Attack surface mapping
3. httpx — Live host & service probing
4. Naabu — Port scanning
5. Nuclei — Vulnerability scanning
6. Katana — Web crawling
7. ffuf — Content discovery
8. dnsx — DNS resolution & enumeration
9. gau — Historical URL discovery
10. waybackurls — Wayback URL collection

Basic workflow:

Subdomains → DNS → Live Hosts → Ports → URLs → Crawl → Scan → Validate

Use only on assets you own or are authorized to test.

#BugBounty #Recon #CyberSecurity #EthicalHacking #Pentesting #WebSecurity #InfoSec #BugHunter

[YourCloudDude | AWS & Python @yourclouddude]

PYTHON AUTOMATION PROJECT ROADMAP

│
├── 📁 1. File Automation
│ ├── 📁 Bulk File Renamer
│ ├── 📁 Folder Organizer
│ ├── 📁 Duplicate File Finder
│ ├── 📁 Automatic Backup Script
│ └── 📁 Download Folder Cleaner

│
├── 📁 2. Excel & CSV Automation
│ ├── 📁 CSV Data Cleaner
│ ├── 📁 Excel Report Generator
│ ├── 📁 Merge Multiple Excel Files
│ ├── 📁 Automatic Data Formatter
│ └── 📁 Monthly Report Automation

│
├── 📁 3. Email Automation
│ ├── 📁 Automated Email Sender
│ ├── 📁 Personalized Bulk Emails
│ ├── 📁 Attachment Downloader
│ ├── 📁 Email Notification System
│ └── 📁 Scheduled Email Reports

│
├── 📁 4. Web Automation
│ ├── 📁 Website Data Scraper
│ ├── 📁 Price Tracker
│ ├── 📁 Job Listing Tracker
│ ├── 📁 Website Change Monitor
│ └── 📁 Browser Automation Script

│
├── 📁 5. API Automation
│ ├── 📁 Weather Data Collector
│ ├── 📁 Currency Rate Tracker
│ ├── 📁 GitHub Activity Monitor
│ ├── 📁 API Data → CSV Pipeline
│ └── 📁 Automated API Reports

│
├── 📁 6. Business Automation
│ ├── 📁 Invoice Generator
│ ├── 📁 Expense Tracker
│ ├── 📁 Customer Follow-Up System
│ ├── 📁 Lead Data Processor
│ └── 📁 Daily Business Report Bot

│
├── 📁 7. System Automation
│ ├── 📁 Disk Space Monitor
│ ├── 📁 Log File Analyzer
│ ├── 📁 Process Monitor
│ ├── 📁 Automatic Cleanup Script
│ └── 📁 System Health Reporter

│
├── 📁 8. Advanced Automation
│ ├── 📁 Multi-Step Workflow Automation
│ ├── 📁 Scheduled Automation Pipeline
│ ├── 📁 Database Automation
│ ├── 📁 Slack/Discord Notification Bot
│ └── 📁 Cloud Automation Script

│
└── 📁 9. Portfolio-Level Projects
├── 📁 Automated Reporting System
├── 📁 Job Application Tracker
├── 📁 E-commerce Price Monitor
├── 📁 Business Workflow Automation
└── 📁 End-to-End Data Automation Pipeline

[William | SOC and Detection Engineering @WilliamInCyber]

Want to learn ethical hacking from scratch?

I found this complete video course covering:

Kali Linux
Virtual machines
Networking
VPNs
Proxies
Tunneling
Maltego
Ethical hacking fundamentals

Learn it. Build a lab. Practice legally.

Free resource:
https://t.co/oSvcsGEt9x

[YourCloudDude | AWS & Python @yourclouddude]

If I wanted GOD LEVEL Cloud Networking skills, I’d master these 15 flows:

[YourCloudDude | AWS & Python @yourclouddude]

10 Networking Concepts You Need Before Learning Cloud

• IP Addressing → identify devices
• Subnets → divide networks
• DNS → map names to IPs
• TCP vs UDP → understand data transfer
• Ports → know where services communicate
• HTTP/HTTPS → understand web traffic
• Routers → move traffic between networks
• Firewalls → control network access
• NAT → connect private networks to the internet
• Load Balancers → distribute traffic

Learn networking first.

Cloud becomes much easier after that.

[YourCloudDude | AWS & Python @yourclouddude]

AWS PROJECT ROADMAP

📁 Stage 1 — Beginner
├─ Static Website on S3
├─ Resume Website on AWS
├─ S3 Backup System
└─ AWS Cost Alert Bot

📁 Stage 2 — Core AWS
├─ EC2 Web Server
├─ Load Balancer Setup
├─ Auto Scaling App
└─ Route 53 Domain Setup

📁 Stage 3 — Networking
├─ Custom VPC
├─ Public + Private Subnets
├─ NAT Gateway Setup
└─ 3-Tier VPC Architecture

📁 Stage 4 — Serverless
├─ Lambda Automation
├─ API Gateway + Lambda
├─ Serverless URL Shortener
└─ S3 Image Processing Pipeline

📁 Stage 5 — Databases
├─ RDS Web App
├─ DynamoDB CRUD API
├─ RDS Backup & Restore
└─ Serverless App with DynamoDB

📁 Stage 6 — DevOps
├─ GitHub Actions → AWS
├─ CI/CD Pipeline
├─ Docker App on ECS
└─ Infrastructure with Terraform

📁 Stage 7 — Portfolio-Level
├─ Production 3-Tier Web App
├─ Multi-Region Website
├─ Disaster Recovery Simulation
└─ Event-Driven AWS Architecture

[Avinash Singh @AvinashSingh_20]

Data Analyst Resource Kit:
https://t.co/9HzyfmxlwN

Like & repost for others!

[Ayaan 🐧 @twtayaan]

Nobody can learn Linux from a course.

If I had to learn Linux from scratch, this is exactly how I’d do it:

1️⃣ Start with a virtual machine:
→ Install VirtualBox and create an Ubuntu VM.
→ Learn to install Ubuntu, update it with apt update && apt upgrade, and take snapshots before experimenting.
→ Treat the VM as your Linux playground where breaking things is completely fine.

2️⃣ Learn the Linux filesystem:
→ Explore /home, /etc, /var, /usr, /tmp, /dev, and /proc
→ Practice pwd, ls, cd, mkdir, cp, mv, rm, and find
→ Understand why configuration files live in /etc and logs commonly live in /var/log.

3️⃣ Get comfortable with the terminal:
→ Learn cat, less, head, tail, grep, sort, wc, and pipes.
→ Practice commands like cat file.txt | grep "error"
→ Start doing everyday tasks without opening the GUI.

4️⃣ Understand users and permissions:
→ Learn whoami, id, sudo, useradd, passwd, and groups
→ Experiment with chmod, chown, 755, 644, and file ownership.
→ Create another user and see what they can and cannot access.

5️⃣ Learn how processes work:
→ Use ps, top, and htop to see what's running
→ Learn about PIDs, background processes, signals, and kill
→ Find a process consuming too much CPU and figure out how to deal with it.

6️⃣ Learn package management:
→ Use apt install, apt remove, apt update, and apt upgrade.
→ Install Nginx, find its configuration files, and understand what it changed.
→ Learn how Linux installs, updates, and removes software.

7️⃣ Learn networking:
→ Use ip addr to understand network interfaces and IP addresses.
→ Practice ping, curl, ss, and dig to understand connectivity, ports, and DNS.
→ Connect to your VM with ssh user@ip-address and manage it remotely.

8️⃣ Learn services and systemd:
→ Learn systemctl start, stop, restart, enable, and status
→ Install Nginx, stop it, restart it, and configure it to start automatically.
→ When something breaks, use journalctl and systemctl status to find the problem.

9️⃣ Learn storage:
→ Understand disks, partitions, filesystems, and mount points
→ Practice with lsblk, df -h, du -sh, and mount
→ Create a virtual disk, format it, mount it, and understand where your data actually lives.

🔟 Learn Bash:
→ Start with variables, conditions, loops, functions, and exit codes
→ Learn $?, $1, pipes, redirection, and #!/bin/bash
→ Write scripts that automate things you actually do.

1️⃣1️⃣ Learn troubleshooting:
→ When something breaks, don't immediately search for the error.
→ Check journalctl, /var/log, systemctl status, and application logs.
→ Learn to go from symptom, evidence, cause, and fix

1️⃣2️⃣ Break things on purpose:
→ Stop services, change permissions, modify configurations, and kill processes
→ Figure out why you broke something and recover it yourself.
→ Restore your VM snapshot when you completely destroy it

1️⃣3️⃣ Build something real:
→ Run Nginx, deploy an application, connect a database, and expose it over the network.
→ Manage everything through SSH and the terminal
→ Then learn Docker and understand what containers are actually doing underneath.

1️⃣4️⃣ Delete Windows:
→ Once you're comfortable, install Linux directly on your machine.
→ Make it your daily driver and learn to solve problems without switching back.
→ Expect plenty of man, --help, searching, breaking things, and fixing them

Don't memorize Linux. Use it until you understand what's happening underneath. 🐧