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Network Reconnaissance & Vulnerability Assessment Training
Nmap (Network Mapper) is the industry-standard open-source tool for network discovery and security auditing. Used by penetration testers, system administrators, and security researchers worldwide.
Reconnaissance is the first phase of any penetration test. Understanding the target's attack surface is critical before exploitation.
nmap <target>
Basic scan — top 1000 ports
nmap -sS <target>
SYN stealth scan
nmap -sV <target>
Service version detection
nmap -O <target>
OS fingerprinting
nmap -A <target>
Aggressive (OS + version + scripts + traceroute)
nmap -p- <target>
Scan all 65535 ports
nmap --script vuln <target>
Run vulnerability detection scripts
nmap --script auth <target>
Check authentication weaknesses
Complete each mission by executing the correct commands in the terminal
Test your understanding of network scanning and vulnerability assessment