Nmap from Scratch | Part-5 | Service and OS detection

nmap -sV nmap.scanme.org
nmap -sV --allports nmap.scanme.org
nmap -sV --version-intensity 8 nmap.scanme.org
nmap -sV --version-light nmap.scanme.org
nmap -sV --version-all nmap.scanme.org
nmap -O nmap.scanme.org
nmap -O --osscan-limit nmap.scanme.org
nmap -O --max-os-tries 3                             #three attempts

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