Network Scanning Techniques
Explore various scanning methods (e.g., SYN, ACK, UDP) to detect open ports and services.
Network Scanning Techniques is a free Ethical Hacking Academy lesson on CoddyKit — lesson 1 of 3. You can read the complete lesson below for free — then practise it hands-on in the browser with a built-in code editor and a 24/7 AI tutor. It is part of the Ethical Hacking Academy learning path, one of 3 lessons in the course, and your progress syncs across the web and the CoddyKit app.
1
Welcome to Network Scanning Techniques
Network scanning helps identify live hosts, open ports, and services running on a target system.
2
What is Network Scanning?
Network scanning is the process of discovering hosts, services, and vulnerabilities in a network.
3
Types of Network Scans
- Ping Scan - Identifies active devices.
- Port Scan - Detects open ports.
- Service Scan - Identifies running services.
- Vulnerability Scan - Detects security flaws.
4
TCP vs. UDP Scanning
TCP scans provide detailed information but are detectable, while UDP scans are stealthier but slower.
5
Common Scanning Techniques
- SYN Scan - Fast and stealthy.
- ACK Scan - Determines firewall rules.
- XMAS Scan - Used for OS fingerprinting.
- NULL Scan - Avoids detection by firewalls.
6
Using Nmap for Scanning
Nmap is a powerful tool for network discovery and security auditing.
nmap -sS -p 1-65535 target_ip7
Interpreting Scan Results
Scan results help identify open ports, services, and potential vulnerabilities.
8
9
Legal and Ethical Considerations
Network scanning should only be performed with proper authorization.
10
Summary
Network scanning techniques help ethical hackers identify open ports, services, and vulnerabilities for security assessments.
Frequently asked questions
Is the “Network Scanning Techniques” lesson free?
Yes — the full text of “Network Scanning Techniques” is free to read here on the web, and the Ethical Hacking Academy course includes 3 lessons in total. To practise it interactively (a built-in code editor and a 24/7 AI tutor) and unlock the rest of the Ethical Hacking Academy course, upgrade to CoddyKit PRO.
What will I learn in “Network Scanning Techniques”?
Explore various scanning methods (e.g., SYN, ACK, UDP) to detect open ports and services. You practise Ethical Hacking Academy with hands-on code you run directly in the browser, and a 24/7 AI tutor answers your questions as you work through the lesson.
Do I need any experience to start Ethical Hacking Academy?
No prior experience is required. Ethical Hacking Academy on CoddyKit is structured for beginners through advanced learners; this is — lesson 1 of 3, so you can start here or from the beginning and move at your own pace.
How long does the “Network Scanning Techniques” lesson take?
Most CoddyKit lessons take about 5–10 minutes. Each one is bite-sized and interactive, so you make steady progress and pick up exactly where you left off across the web and the app.
Can I write and run code in this Ethical Hacking Academy lesson?
Yes. Every Ethical Hacking Academy lesson includes a built-in code editor, so you write and run real code right in your browser and get instant AI feedback — no local setup required.
All lessons in this course
- Network Scanning Techniques
- Service and OS Fingerprinting
- Enumeration Tools