Network Scanning
Masscan
Asynchronous ultra-fast port scanner for large address spaces.
Authorized testing only. Practice on systems you own, isolated labs, or targets with written permission. Unauthorized access is illegal.
When
You need speed across large scopes; follow up with Nmap for depth.
How
Scan wide ranges at controlled rates; feed open ports into Nmap -sV.
Why
Orders of magnitude faster for coarse discovery on big nets.
Commands & usage
sudo masscan -p1-65535 192.168.1.0/24 --rate 1000 -oL masscan.lst
sudo masscan -p80,443 10.0.0.0/8 --rate 5000
Commands are educational examples. Adapt hosts, paths, and rates to your authorized scope.
Comparisons
Tags
Related in Network Scanning
Nmap
The definitive network mapper for host discovery, ports, and service/version detection.
RustScan
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naabu
Fast port scanner from ProjectDiscovery, pipeline-friendly.
AutoRecon
Multi-threaded automatic enumeration of services based on open ports.
Netdiscover
ARP reconnaissance tool for local network host discovery.
arp-scan
Sends ARP requests to enumerate hosts on local subnets.