HostResolver

HostResolver is a simple python script that can be used to resolve the hostnames of a list of IPs or to get the IPs of a list of hostnames. The results will be saved as a CSV file in a specified directory.

How to Use

-h, --help     show this help message and exit
-r --resolver  The -r argument must be set to "ips" to resolve IPs from hostnames, or set to "hostnames" to resolve hostnames from IPs.
-d --domain    A domain name to append to the hostnames when resolving IPs.
-i --infile    The location of your input file, hostnames or IPs, 1 per line. (-i ".\hosts.txt")
-o --outfile   The location and name of the output file (-o ".\results.csv")

To Lookup IP addresses from hostnames.

IPs to Hostnames Example:

python3 HostResolver.py -r ips -d thelargebank.com -i hostnames.txt -o ip_results.csv

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NOTE

The domain (-d) argument is not required. If you list already has FQDNs for the host, you should not pass the script a domain. You can also run this without FQDNs or providing a domain, but the resolution may not be as successful.

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Hostnames to IPs Example:

python3 HostResolver.py -r hostnames -i IPs.txt -o hostnames_result.csv