Cybersecurity

Naabu is a modern port scanner built by the ProjectDiscovery team. Written in Go, it focuses on high performance, ease of integration, and usage in engineering pipelines. If Nmap is the classic all-rounder and Masscan is the representative of extreme speed, then Naabu is the “modern, automated, orchestratable” intermediate state between the two. 🚀 Tool Positioning Naabu implements port scanning via SYN/CONNECT/UDP probing methods, supporting: DNS resolution and automatic deduplication IPv4 / IPv6 mixed scanning (experimental) Passive port enumeration (Shodan / InternetDB) Host discovery and Nmap integration Multiple inputs (Domain / IP / CIDR / ASN) and multiple output formats (JSON / TXT / STDOUT) ⚙️ Key Technologies and Implementation in Naabu 1️⃣ Concurrency Model: Goroutine + Worker Pool Naabu uses Go’s native goroutine and channel model to drive large-scale scanning tasks. Each probe task is assigned to a worker pool for asynchronous execution, realizing the flow of “Massive Tasks → Lightweight Threads → Aggregated Output”. ...

Overview Port scanning is a crucial step in the information gathering phase and is one of the primary methods for obtaining service information from a target host. Its core relies on the transport layer characteristics of the TCP/IP protocol stack. Common active port scanning can be broadly divided into TCP Scanning and UDP Scanning. UDP Port Scanning Principle Unlike TCP, UDP is a connectionless, stateless protocol, so the information obtained during scanning is relatively limited. ...