Nslookup

What the code do:

The code on python with scapy language Implements the nslookup. In additon, it's Implements for the reverse mapping (or -type=PTR ) and CNAME if exist.

What is nslookup

Nslookup (from name server lookup) is a network administration command-line tool for querying the Domain Name System (DNS) to obtain the mapping between domain name and IP address, or other DNS records.

Example of nslookup using

demonstration

(compare if the real commend)

Ordinary DNS requst (type: A)

Ordinary DNS requst (type:A) and return aliases if exist (type: CNAME)

reverse mapping (type: PTR)