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🐧 MODERN LINUX NETWORK TROUBLESHOOTING – MADE SIMPLE!

Whether you’re using Ubuntu, Debian, Fedora, Arch, or RHEL-based systems, this light-theme infographic walks you through modern Linux networking commands step by step — from checking IPs and routing to DNS, NetworkManager, and packet capture 🌐💻

🐧 Modern Linux Network Troubleshooting Guide
Works on Ubuntu 20.04+, Debian 11+, RHEL/CentOS Stream, Rocky, Fedora, Arch

1️⃣ CHECK NETWORK INTERFACES & IP ADDRESS
Copy code
Bash
ip addr show
Purpose:
Shows IP addresses (IPv4/IPv6)
Confirms interface is UP
Copy code
Bash
ip link show
Purpose:
Checks physical/logical interface state (UP/DOWN)

2️⃣ CHECK DEFAULT GATEWAY &...

1. WEB APPLICATION HACKER’S ’s HANDBOOK
This book teaches you how to find and fix problems in websites. It shows real examples and how hackers attack web apps.

2. THE HACKER’S PLAYBOOK 2
This is like a guidebook for ethical hackers. It gives step-by-step instructions to test and break into systems (legally) for learning.

3. HACKING: THE ART OF EXPLOITATION
This book explains how hacking works inside computers. It teaches programming, how to find bugs, and how hackers use them.

4. GHOST IN THE WIRES
This is a true story about a famous hacker, Kevin Mitnick. He tells how he...

🛡️ Stay ahead in the digital world with the most popular cybersecurity tools every IT professional and ethical hacker should know!

From network security and penetration testing to malware analysis and cloud security — these tools help protect systems, detect threats, and strengthen defenses.

⚠️ Always remember: use cybersecurity tools ethically and only on authorized systems.

🛡️ NETWORK SECURITY
Nmap – Network scanning & port discovery
Wireshark – Packet capture & traffic analysis
Netcat (nc) – Network debugging & data transfer
Snort – Intrusion Detection System (IDS)
Suricata – IDS / IPS engine

🔐 VULNERABILITY ASSESSMENT
Nessus – Vulnerability scanning...

🚀🚀 Roadmap to Become a DevOps Engineer

📁 System Basics
│
├─ 📁 Linux & Networking
│
├─ 📁 Git & Version Control
│
├─ 📁 CI/CD Pipelines
│
├─ 📁 Containers (Docker)
│
├─ 📁 Orchestration (Kubernetes)
│
├─ 📁 Cloud (AWS / Azure / GCP)
│
├─ 📁 Monitoring & Logging
│
└─ ✅ Automate & Deploy Real Systems

• Learn Linux Basics

• Master CLI Tools

• Understand Package Managers

• Learn Docker

• Dive into Kubernetes

• Set Up CI/CD

• Manage Secrets and Environment Variables

• Monitor Logs and Metrics

• Apply Security Best Practices

• Master Cloud Platforms

🐧 MODERN LINUX NETWORK TROUBLESHOOTING – MADE SIMPLE!

Whether you’re using Ubuntu, Debian, Fedora, Arch, or RHEL-based systems, this light-theme infographic walks you through modern Linux networking commands step by step — from checking IPs and routing to DNS, NetworkManager, and packet capture 🌐💻

🐧 Modern Linux Network Troubleshooting Guide
Works on Ubuntu 20.04+, Debian 11+, RHEL/CentOS Stream, Rocky, Fedora, Arch

1️⃣ CHECK NETWORK INTERFACES & IP ADDRESS
Copy code
Bash
ip addr show
Purpose:
Shows IP addresses (IPv4/IPv6)
Confirms interface is UP
Copy code
Bash
ip link show
Purpose:
Checks physical/logical interface state (UP/DOWN)

2️⃣ CHECK DEFAULT GATEWAY &...

Here are 20 basic Linux commands:

1. ls – Lists files and directories

2. cd – Changes the current directory

3. pwd – Displays the present working directory

4. mkdir – Creates a new directory

5. rmdir – Removes an empty directory

6. rm – Deletes files or directories

7. cp – Copies files or directories

8. mv – Moves or renames files and directories

9. touch – Creates a new file

10. cat – Displays the contents of a file

11. nano – Opens a simple text editor (Nano)

12. vim – Opens an advanced text editor (Vim)

13....