Announcement
masscan: The Internet-Scale Port Scanner
Explore the internet at scale. masscan is the fastest internet port scanner, capable of scanning the entire Internet in under 5 minutes.
Project Introduction
Summary
masscan is an open-source network utility designed for high-speed TCP port scanning of very large network ranges, capable of surveying the entire internet in minutes. It operates by sending SYN packets asynchronously and is optimized for speed over traditional host-by-host scanning methods.
Problem Solved
Traditional port scanners are too slow for scanning large network ranges, let alone the entire internet, making comprehensive surveys or rapid incident response challenging. masscan solves this by operating at extremely high speeds.
Core Features
High-Speed Asynchronous Scanning
Achieve scanning rates up to 10 million packets per second, enabling full internet scans rapidly.
SYN-based Scanning
Leverages asynchronous transmission of SYN packets, operating much faster than traditional scanners.
Internet-Scale Capability
Supports scanning the entire IPv4 internet range efficiently.
Tech Stack
Usage Scenarios
masscan is ideal for scenarios requiring extremely fast network surveying across wide IP ranges, including:
Large-Scale Vulnerability Scanning
Details
Identify vulnerable services or open ports exposed on the internet or large corporate networks quickly.
User Value
Rapidly discover potential attack vectors across a vast number of hosts.
Internet Research and Statistics Gathering
Details
Conduct internet-wide surveys to gather statistics on service prevalence, network configurations, or the impact of security events.
User Value
Enable comprehensive, up-to-date analysis of internet-wide phenomena.
Network Inventory and Mapping
Details
Efficiently map large internal or external network address spaces to maintain an accurate inventory of active hosts and services.
User Value
Improve situational awareness and management of large, complex networks.
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