Brutescan is a fast and noisy TCP port scanner written in go.

Preparation

# install git and curl packages
$ sudo apt install -y curl git

# download go (do not install from Debian)
$ curl -O https://storage.googleapis.com/golang/go1.8.linux-amd64.tar.gz

# unzip archive
$ tar xvf go1.8.linux-amd64.tar.gz

# set owner and group (recursive)
$ sudo chown -R root:root go

# move all into target directory
$ sudo mv go /usr/local/

Configure go (for user)

# create hidden go directory
$ mkdir ~/.go

# configure needed paths (inside .bashrc)
$ echo "GOPATH=$HOME/.go" >> ~/.bashrc
$ echo "export GOPATH" >> ~/.bashrc
$ echo "PATH=\$PATH:/usr/local/go/bin:\$GOPATH/bin" >> ~/.bashrc

# reload
$ source ~/.bashrc

# check go version
$ go version
go version go1.8 linux/amd64

Install brutescan

# install packages from github
$ go get github.com/asciimoo/brutescan

# show bombardier help
$ brutescan --help

Usage/Examples

# scan all ports on localhost
$ brutescan localhost
...
Scanning localhost (127.0.0.1)
Port range: 1-65535 (65534 ports)
Concurrent connections: 65512

port 22    open
port 25    open
port 111   open
port 42619 open

Scan finished in 2.970551852s
...

# scan port range with specific concurrent pool size
$ brutescan -pmin 22 -pmax 2000 -pool 100 heise.de
...
Scanning heise.de (193.99.144.80)
Port range: 22-2000 (1978 ports)
Concurrent connections: 100

no open ports found

Scan finished in 1m0.087341111s ...