Rustscan
RustScan (12.1k β) is a very fast and noisy port scanner designed for CTFs. You can scan all 65k ports in a few seconds.
It's not installed by default on Kali. First, search for the latest .deb
that you can find on their release page.
$ # there wasn't the .deb for the latest
$ wget "https://github.com/RustScan/RustScan/releases/download/2.3.0/rustscan_2.3.0_amd64.deb" -O /tmp/rustscan.deb
$ sudo dpkg -i /tmp/rustscan.deb
Basic usage
$ rustscan -a IP -p 21
$ rustscan -a IP -p 21,22,80
$ rustscan -a IP --range 1-1023
# add "--" before nmap options
$ rustscan -a IP -- -sC -A
$ rustscan -a IP -- -sV
Using --ulimit
make it faster, but you will miss some ports.