#1DNS reconnaissance, monitoring, tunneling detection, and DNS security analysis tools.
Kitploit recommended

Snoopy v2.0 - modular digital terrestrial tracking framework

A program to map out SPF and DKIM records for a large number of domains

dnsenum is a perl script that enumerates DNS information

OpenDNS Data Visualization Framework

Scans NTP servers for CVE-2013-5211 NTP DDOS amplification vulnerability.

Automated man-in-the-middle attack tool.

PwnSTAR (Pwn SofT-Ap scRipt) - for all your fake-AP needs!

ZynOS tool for automated attack on a range of IPs, find more informations at :

A tool to generate Snort rules based on public IP reputation data

ARP spoofing, HTTP redirection, DNS spoofing and DNS forging using pcap library

A Windows application to help out with external infrastructure scans.

ARP spoofing and network packet manipulation tool for man-in-the-middle attacks, traffic interception, and LAN reconnaissance using Python and pcap.