IpDnsResolver is a very simple and fast program that easily lets you find your own IP address, resolve hostnames to IP addresses and IP addresses to hostnames using the DNS. The tool is designed with a user-friendly interface and is easy to use.
NADetector monitors and analyzes the network traffic and displays statistical information pertaining to each IP address pair and protocol, helping network administrators and users troubleshoot network problems. The main purpose of NADetector is to allow you to collect statistical information about your network traffic that passes through network adapters and display incoming, outgoing and summary traffic statistics.
Whois Tool is a client utility that communicates with WHOIS servers located around the world to obtain domain registration information. Whois supports IP address queries and automatically selects the appropriate whois server for IP addresses. This tool will lookup information on a domain, IP address, or a domain registration information .
FreeNetEnumerator is a tool to enumerate computers in a domain. Depending on enumeration parameters the tool can work in different ways. It can enumerate all computers ( if All Computers is selected ), all SQL servers only (if Microsoft SQL Servers is selected ), all primary domain controllers only ( if Primary domain controllers is selected ) , backup domain controllers only, primary domains only,etc.