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327OSINT Fundamentals and Information Sources
328DNS Enumeration Without Direct Queries
329WHOIS and Domain Registration Intelligence
330Search Engine Reconnaissance and Google Dorking
331Social Media and Public Profile Intelligence
332Certificate Transparency Logs and SSL/TLS Discovery
333Shodan and Internet-Wide Scanning Databases
334Email Harvesting and Metadata Extraction
335Wayback Machine and Historical Website Analysis
336ASN and IP Range Discovery via Public Sources
337Active vs Passive Reconnaissance
338Port Scanning Fundamentals
339TCP Connect Scanning
340SYN Scanning (Half-Open)
341UDP Scanning Techniques
342Nmap Basics and Port Specifications
343Advanced Nmap Scan Types
344Service Version Detection
345Scan Timing and Performance
346Host Discovery Techniques
347Firewall and IDS Evasion
348NSE (Nmap Scripting Engine)
349Network Mapping Fundamentals
350Traceroute and Path Discovery
351Network Diagramming from Scan Results
352Subnet and VLAN Discovery
353Gateway and Router Identification
354Network Segmentation Analysis
355Wireless Network Topology Mapping
356Automated Network Mapping Tools
357Introduction to Service and OS Fingerprinting
358Banner Grabbing Fundamentals
359TCP/IP Stack Fingerprinting
360Nmap Service Version Detection
361OS Detection with Nmap
362Application-Layer Fingerprinting
363Passive OS Fingerprinting
364Fingerprinting Evasion and Obfuscation
365Combining Fingerprinting with Vulnerability Research
366Stealth Scanning Fundamentals
367TCP Stealth Scan Techniques
368Timing and Rate Limiting for Evasion
369Fragmentation and Packet Manipulation
370Decoy Scanning and IP Spoofing
371Protocol and Port Manipulation
372Evading Intrusion Detection Systems
373Anti-Detection Best Practices

327OSINT Fundamentals and Information Sources
328DNS Enumeration Without Direct Queries
329WHOIS and Domain Registration Intelligence
330Search Engine Reconnaissance and Google Dorking
331Social Media and Public Profile Intelligence
332Certificate Transparency Logs and SSL/TLS Discovery
333Shodan and Internet-Wide Scanning Databases
334Email Harvesting and Metadata Extraction
335Wayback Machine and Historical Website Analysis
336ASN and IP Range Discovery via Public Sources
337Active vs Passive Reconnaissance
338Port Scanning Fundamentals
339TCP Connect Scanning
340SYN Scanning (Half-Open)
341UDP Scanning Techniques
342Nmap Basics and Port Specifications
343Advanced Nmap Scan Types
344Service Version Detection
345Scan Timing and Performance
346Host Discovery Techniques
347Firewall and IDS Evasion
348NSE (Nmap Scripting Engine)
349Network Mapping Fundamentals
350Traceroute and Path Discovery
351Network Diagramming from Scan Results
352Subnet and VLAN Discovery
353Gateway and Router Identification
354Network Segmentation Analysis
355Wireless Network Topology Mapping
356Automated Network Mapping Tools
357Introduction to Service and OS Fingerprinting
358Banner Grabbing Fundamentals
359TCP/IP Stack Fingerprinting
360Nmap Service Version Detection
361OS Detection with Nmap
362Application-Layer Fingerprinting
363Passive OS Fingerprinting
364Fingerprinting Evasion and Obfuscation
365Combining Fingerprinting with Vulnerability Research
366Stealth Scanning Fundamentals
367TCP Stealth Scan Techniques
368Timing and Rate Limiting for Evasion
369Fragmentation and Packet Manipulation
370Decoy Scanning and IP Spoofing
371Protocol and Port Manipulation
372Evading Intrusion Detection Systems
373Anti-Detection Best Practices

Lesson 338 of 3,052·8. Network Security - ReconnaissancePro lesson

Port Scanning Fundamentals

Core concepts of port scanning including open, closed, and filtered states and what they reveal about targets.

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