Reverse DNS lookup

Introduction

A simple implementation of goroutines to handle the reverse DNS lookup of a network. It receives a CIDR network range and it searches for all the domains which can get.

Usage

Direct execution

go run functions.go main.go -cidr <CIDR range> [-t <number of threads>]

Compiling

go build -o binary/reverse-dns-lookup functions.go main.go

And can be executed as:

./binary/reverse-dns-lookup -cidr <CIDR range> [-t <number of threads>]

TODO

• Improve handling of input parameters (validate, force, etc)
• Store results in output file
• Define the format of the output

Note for haters

• Yup, go doesn't talks about "threads". For you, when it says threads, it means paralell goroutines.