Zero Trust Academy • Developed by ABS Shakeel

Nmap for Hackers and Ethical Security Professionals

Learn Nmap the practical way — build commands, understand scans, analyze simulated output, and practice in labs. Designed for authorized, ethical security learning.

Start Learning Open Command Builder Watch on YouTube
  • Interactive command builder with clear explanations
  • Unified command reference and cheat sheet
  • Labs, quizzes, and simulated output analysis
Authorization Notice: Use Nmap only on systems you own or have explicit permission to assess. This site explains and generates commands; it does not run scans.
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sample-terminal

Nmap Fundamentals

Learn the Nmap workflow step by step. Select a stage to see what it does, why it matters, and common commands.

Interactive Nmap Command Builder

Build Nmap commands step by step with a clean, guided interface. Use quick presets or customize options — the command, explanation, and validation update in real time. Commands are generated only and never executed.

Quick Start

Choose a preset to configure common options quickly, then adjust as needed.

1. Target Configuration

2. Scan Type

Select one primary scan type. Some scans require elevated privileges in real environments; this tool explains them conceptually.

3. Ports

Examples: -p 22, -p 22,80,443, -p 1-1000, -p-, --top-ports 100

4. Service & Version Detection

-sV probes services to identify product and version. Intensity controls probe aggressiveness (0 light, 9 thorough). --version-all is equivalent to intensity 9.

5. OS Detection

OS fingerprinting compares network responses to known signatures; accuracy depends on open/closed ports and host behavior.

6. Timing

Trade-offs: slower templates reduce network impact and can evade simple rate-based detection; faster templates increase speed but may reduce reliability or disrupt fragile services.

7. Output Options

8. NSE Script Scanning Advanced

Authorization required: Intrusive, exploit-oriented, and authentication-testing scripts must only be used with explicit permission in carefully isolated labs. vuln scripts can be disruptive.

9. Firewall & Evasion Concepts Advanced

These options are presented for defensive understanding and authorized lab analysis. Do not use them to bypass security controls on unauthorized networks.

Fragmentation/MTU split probes; decoys obscure origin in logs; source-port selection may interact with firewall rules. Timing also influences detectability. Understand these to design and monitor defenses.

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Command Explanation

Command History

    Command Reference

    Search and filter Nmap commands, personalize your target, and open details for explanations and examples.

    Commands are personalized for copy/paste. Use only on systems you own or have explicit permission to assess.

    Output Analyzer

    Click any line in the simulated output to see details for that specific result (state, service, version, or reason).

    Simulated Data 
    
            
    
            
    
              
    Result Details
    
              
    Select a highlighted line or port to view details.
    
              
    
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                Closed
                Filtered
                Open|Filtered
                Unfiltered
                Unknown
              
    
            
    
          
    
        
    

        
    
          
    
            
    Hands-on Labs
    
            
    Practice Nmap workflows in safe, authorized environments with guided steps and checks.
    
          
    
          
    
            
            
            
            
          
    
          
    
        
    

        
    
          
    
            
    Network Visualizer
    
            
    Explore a fictional 192.168.1.0/24 network. Click devices to inspect simulated ports, services, and connections.
    
          
    
          
    
            
    
              
              
              
            
    
            
    
              
    
              
    
            
    
          
    
        
    

        
    
          
    
            
    Quiz and Knowledge Assessment
    
            
    Test your understanding with 30+ questions across beginner, intermediate, and advanced levels. Progress is saved locally.
    
          
    
          
    
            
    
            
    
              
    Your Progress