zmap - Open source network scanner to perform Internet-wide network studies.


zmap is an open-source network scanner that enables researchers to easily perform Internet-wide network studies.


How to get this tool

To use this tool, please use a method listed below.

In a Linux (Debian OS), run the following command(s).

sudo apt install zmap


Download directly from the following link:


How to execute

#By default, ZMap will perform a TCP SYN scan on the specified port at the maximum rate possible. A more conservative configuration that will scan 10,000 random addresses on port 80 at a maximum 10 Mbps can be run as follows:

zmap --bandwidth=10M --target-port=80 --max-targets=10000 --output-file=results.csv


#ZMap can also be used to scan specific subnets or CIDR blocks. For example, to scan only and on TCP/80, run:

zmap -p 80





Next steps:


This article was contributed by Jason Jacobs from Guyana. Jason is a member of the Caribbean CSPA.

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