ZMap
A fast single-packet network scanner designed for surveys across very large address ranges.
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About ZMap
ZMap is a command-line network scanner that sends a single probe packet per host, which lets it survey very large address ranges, up to Internet-wide scans, far faster than connection-based scanners. Researchers use it to measure how services are deployed across the Internet.
It is written in C, builds with CMake and can run in a container. The repository includes notes on tuning for 10 gigabit links and netmap. It suits network researchers and administrators surveying their own large networks.
Strengths
- Scans very large address ranges quickly
- Tuning options for 10 gigabit networks
- Container build included
Limitations
- Intended for authorized testing and research only
- Command line only, with no graphical interface
- Finds open ports rather than detailed service information
Details
- Pricing
- FreeFree to download and use.
- License
- Proprietary
- Developer
- The ZMap contributors
- Platforms
- Linux, Command line
- How it runs
- Downloadable app
- Account
- Not required
- Best suited for
- Researchers and administrators surveying large networks for open ports
- Categories
- Network tools, Security tools
- Last verified
- Added
- Provenance
- Facts checked against the developer's own pages and store listings, 1 sources on file.
Alternatives to ZMap
Compare allSoftware that can replace ZMap for an important use case, and what changes if you switch.
masscan
Scan large sets of IP addresses for open ports.
masscan is an AGPL-3.0 open-source high-throughput port scanner for macOS and Linux, while ZMap has no listed open-source licence and runs only on Linux.
Nmap
The network mapper: find out which hosts are up, which ports are open and what is listening on them.
Nmap adds service and version detection, OS fingerprinting and a scripting engine, plus a graphical front end, but is slower for very large address ranges.
RustScan
Discover open ports with a configurable scanner written in Rust.
RustScan is a GPL-3.0 port scanner for Windows, macOS and Linux that supports follow-up scripts and hands results to other scanning tools.
Naabu
Discover listening network ports with a command-line scanner.
Naabu is an MIT-licensed port scanner for Windows, macOS and Linux with several scan methods and optional Nmap integration, aimed at targeted lists rather than internet-wide surveys.
Similar software
Related functionality, not necessarily a direct replacement.
Shodan
A search engine that indexes internet-connected devices and the services they expose.
Censys
An internet intelligence platform for searching hosts, services and TLS certificates across the internet.
Angry IP Scanner
A fast, friendly IP and port scanner that needs no installation and runs on Windows, Mac and Linux.
hping3
Packet crafting tool for TCP/IP testing and probing.
Zenmap
The official cross-platform graphical interface for the Nmap network scanner.
