Passive/Active DNS expansion using Shodan

[ulissescastro]

Hello @darkoperator ! I hope your are doing well sir.

It should be good if it is possible to have the shodan-python(1) intragrated with an "online" or "offline" (such as passive or active validation).

Expanding the SPF and/or whois networks through Shodan's query "net:xyz.xyz.xyz.xyz/24(or whatever net it found)", looking for new names. Giving the option to validate if the name found still responds or not depending on what user have set on options.

Something like:
--shodan "api-key" or "file-with-api-key" --shodan-passive --shodan-active

I love this tool and use it for so long, thank you for all your effort to maintain it. Cheers!

1 - https://github.com/achillean/shodan-python