🔥 Fast Scan the internet with Zmap in 5min🔥

In this article we discuss the Zmap tool, this tool is a quick single packet network scanner, meaning this tool allows you to scan the internet for information that you are after.

Image result for zmap

The ZMAP project

The Zmap project can be found on Github, on the github page, you can take a look into the code, and even make adjustments if you want. The license and copyright of Zmap belongs to:

ZMap Copyright 2017 Regents of the University of Michigan

License and Copyright

Scan the web in 45 minutes

This quick single packet network scanner can parse and scan the entire public IPv4 address space in under 45 minutes (That is 4,294,967,296 IP addresses).

With a 10gigE connection and PF_RING, ZMap can scan the IPv4 address space in 5 minutes.

Installation of Zmap

It is very easy to install ZMAP, you simply need to follow the instructions provided on their Github project page. To make it more easy for you, below, you can find the install commands for Ubuntu, Debian, Fedora, CentOS, RHEL, Gentoo, macOS (Homebrew) and Arch Linux:

Debian and Ubuntusudo apt install zmap
Fedora, CentOS, and RHELsudo yum install zmap
Gentoosudo emerge zmap
macOSbrew install zmap
Arch Linuxsudo pacman -S zmap

Zmap Commands

ZMap perform a TCP SYN scan by default, on the specified port at the maximum rate possible.

Scan 10,000 random addresses on port 80 at a maximum 10 Mbps:

zmap --bandwidth=10M --target-port=80 --max-targets=10000 --output-file=scanresults.csv
zmap -B 10M -p 80 -n 10000 -o scanresults.csv

Scan CIDR blocks and specifc subnets

zmap -p 80

More commands can be found on the official Zmap WIKI.