HostResolver

Resolve hosts to IP addresses, scan for SPF records, and enumerate ASNs as quickly as possible; because time is of the essence.

Requirements

First make sure you have python 3.4+ and the python package manger (pip).

python3 --version
which pip3

Download all the dependencies using the package manager:

pip3 install -r requirements.txt

Thats it!

Optionally, you can use virtual_env or other tools to manage your packages.

Single host lookup

python3 resolv.py hostname

Lookup list of hostnames from file

python3 resolve.py hostnames_file.txt

Advanced usage: Resolve ASNs, SPF, and DMARC records From List and Set Custom Thread Counts

python3 resolv.py --threads 200 --asn --spf --dmarc hostname_list.txt

More threads will allow a faster execution, with a tradeoff of system resources.