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Nmap Tutorial — Network Scanning

23. 09. 2025 1 min read intermediate

Nmap je nejpoužívanější nástroj pro network discovery a security auditing. Od jednoduchého port scanu po komplexní vulnerability assessment.

Základní skeny

Nmap Tutorial — Network Scanning

nmap target.com

Všechny porty + service detection

nmap -sV -p- target.com

OS detection + scripts

nmap -sV -sC -O target.com

UDP scan

nmap -sU –top-ports 100 target.com

Stealth scan (SYN)

nmap -sS -T4 target.com

NSE scripty

Vulnerability scanning

nmap –script vuln target.com

SSL audit

nmap –script ssl-enum-ciphers -p 443 target.com

HTTP enumeration

nmap –script http-enum -p 80,443 target.com

Brute force

nmap –script ssh-brute -p 22 target.com

Output formáty

nmap -oA scan_results target.com # Všechny formáty nmap -oX scan.xml target.com # XML pro parsování nmap -oG scan.grep target.com # Grepable

Key Takeaway

nmap -sV -sC -O for a complete audit. NSE scripts for vulnerability scanning. Always with the owner’s permission.

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CORE SYSTEMS team

We build core systems and AI agents that keep operations running. 15 years of experience with enterprise IT.