PYrevDNS

PYrevDNS is a simple tool for performing reverse DNS lookups on IP addresses. It can be used to perform a single lookup or to perform lookups on a list of IP addresses.

Installation Through PIP

To install dependencies, use the following command:

pip3 install -r requirements.txt

To import certify as module, install it using the following command:

pip3 install pyrevdns

Installation with Docker

This tool can also be used with Docker. To set up the Docker environment, follow these steps (trying using with sudo, if you get any error):

docker build -t pyrevdns:latest .

OR

Pull directly from Docker Hub:

docker pull shivamsaraswat/pyrevdns:latest

Using the PYrevDNS as command-line tool

To run the PYrevDNS on an IP address, provide the IP address with the -ip flag:

python3 pyrevdns -ip 216.58.196.110

For an overview of all commands use the following command:

python3 pyrevdns -h

The output shown below are the latest supported commands.

usage: pyrevdns [-h] [-v] [-ip IP] [-l LIST] [-d] [-t THREADS] [-r RESOLVER] [-o OUTPUT] [-silent]

PYrevDNS (Reverse DNS lookup tool)

options:
  -h, --help            show this help message and exit
  -v, --version         show program's version number and exit

INPUT:
  -ip IP                Input IP address
  -l LIST, --list LIST  Input list of IP addresses
  -d, --domain          Output only domains

CONFIGURATION:
  -t THREADS, --threads THREADS
                        Number of threads to use
  -r RESOLVER, --resolver RESOLVER
                        IP of the DNS resolver to use for lookups (default: 8.8.8.8)

OUTPUT:
  -o OUTPUT, --output OUTPUT
                        Output file
  -silent               display silent output

Example: python3 pyrevdns -ip 216.58.196.110

Examples

Example 1:

Reverse DNS on the IP address 216.58.196.110 with the help of 1.1.1.1 DNS Resolver.

> python3 pyrevdns -ip 216.58.196.110 -r 1.1.1.1

██████╗ ██╗   ██╗██████╗ ███████╗██╗   ██╗██████╗ ███╗   ██╗███████╗
██╔══██╗╚██╗ ██╔╝██╔══██╗██╔════╝██║   ██║██╔══██╗████╗  ██║██╔════╝
██████╔╝ ╚████╔╝ ██████╔╝█████╗  ██║   ██║██║  ██║██╔██╗ ██║███████╗
██╔═══╝   ╚██╔╝  ██╔══██╗██╔══╝  ╚██╗ ██╔╝██║  ██║██║╚██╗██║╚════██║
██║        ██║   ██║  ██║███████╗ ╚████╔╝ ██████╔╝██║ ╚████║███████║
╚═╝        ╚═╝   ╚═╝  ╚═╝╚══════╝  ╚═══╝  ╚═════╝ ╚═╝  ╚═══╝╚══════╝

     Coded with Love by Shivam Saraswat (@cybersapien)

# 216.58.196.110  maa03s19-in-f110.1e100.net

Example 2:

Reverse DNS on the list of IP addresses with the help of 1.1.1.1 DNS Resolver.

> python3 pyrevdns --list test.txt -r 1.1.1.1

██████╗ ██╗   ██╗██████╗ ███████╗██╗   ██╗██████╗ ███╗   ██╗███████╗
██╔══██╗╚██╗ ██╔╝██╔══██╗██╔════╝██║   ██║██╔══██╗████╗  ██║██╔════╝
██████╔╝ ╚████╔╝ ██████╔╝█████╗  ██║   ██║██║  ██║██╔██╗ ██║███████╗
██╔═══╝   ╚██╔╝  ██╔══██╗██╔══╝  ╚██╗ ██╔╝██║  ██║██║╚██╗██║╚════██║
██║        ██║   ██║  ██║███████╗ ╚████╔╝ ██████╔╝██║ ╚████║███████║
╚═╝        ╚═╝   ╚═╝  ╚═╝╚══════╝  ╚═══╝  ╚═════╝ ╚═╝  ╚═══╝╚══════╝

     Coded with Love by Shivam Saraswat (@cybersapien)

# 216.58.196.110  maa03s19-in-f110.1e100.net
# 173.0.84.203    m.paypal.com
# 185.199.109.153 cdn-185-199-109-153.github.com

Using the PYrevDNS as module

Examples

Example 1

import pyrevdns

print(pyrevdns.Pyrevdns.lookup('216.58.196.110', only_domain=True))

# maa03s19-in-f110.1e100.net

Example 2

import pyrevdns

print(pyrevdns.Pyrevdns.lookup('216.58.196.110', resolver_ip='1.1.1.1'))

# 216.58.196.110  maa03s19-in-f110.1e100.net

Using the Docker Container

A typical run through Docker would look as follows:

docker run -it --rm pyrevdns -ip 216.58.196.110