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reverse-scan's Introduction

Reverse-Scan

Perform reverse DNS lookups on huge network ranges

This utility uses the "Dispatcher/Workers" pattern discribed here :

Getting Started

Download the binary :

wget https://github.com/amine7536/reverse-scan/releases/download/v0.2.1/reverse-scan
chmod +x reverse-scan

Usage :

./reverse-scan --help
Reverse Scan

Usage:
  reverse-scan [flags]
  reverse-scan [command]

Available Commands:
  help        Help about any command
  version     Print the version number

Flags:
  -e, --end string      ip range end
  -h, --help            help for reverse-scan
  -o, --output string   csv output file
  -s, --start string    ip range start
  -w, --workers int     number of workers (default 8)

Use "reverse-scan [command] --help" for more information about a command

Run :

./reverse-scan --start 37.160.0.0 --end 37.175.255.255 --output /tmp/out.csv -w 1024
2017/06/30 15:01:29 Resolving from 37.160.0.0 to 37.175.255.255
2017/06/30 15:01:29 Caluculated CIDR is 37.160.0.0/12
2017/06/30 15:01:29 Number of IPs to scan: 1048576
2017/06/30 15:01:29 Starting 1024 Workers
   9s [======================================================>-------------]  81%

You specify the number of workers with the option -w, by default the utility start with 8 workers. You must also specify an output CSV file.

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