The 4 NMAP Scans Every Pentester Runs First

Active reconnaissance is where real pentests begin, and Nmap is the tool that's been in every professional pentester's kit for decades. In this lecture, I walk through the four core Nmap commands you'll actually use on live engagements: host discovery, TCP SYN scanning, service version detection, and OS fingerprinting. I'm Thomas Wilhelm. 30 years in offensive security, former practice director, Army cryptanalyst, and author of "Professional Penetration Testing" and "Basics of Hacking and Penetration Testing." On this channel, I teach the methodology, scoping, and execution side of pentesting that most tutorials skip. WHAT YOU'LL LEARN What active reconnaissance is and how it differs from passive recon How to run a ping sweep to identify live hosts (nmap -sn) How to enumerate service versions for vulnerability research (nmap -sV) How to fingerprint the target operating system (nmap -O) How each scan type fits into a real pentest methodology RESOURCES: Join this channel to get access to perks →    / @pentest_tv   Get my newsletter → https://tinyurl.com/pentest-mailing-list Visit the website → https://Pentest.TV Join the Pentest.TV Discord →   / discord   #Nmap #PenetrationTesting #EthicalHacking #CyberSecurity #ActiveRecon #PortScanning #InfoSec #PentestTutorial #NetworkSecurity #OSINT #KaliLinux #RedTeam #HackingTutorial #CyberSecurityTraining #pentesting