eToolz is a nifty GUI tool that allows you to perform a number of network queries: DNS, ping, traceroute, WHOIS, mail-check, HTTP-header, time (NTP), Google pagerank, top level domains and port numbers.
For some of these queries, you would usually go to the command prompt in Windows; for example, the DNS query would be just nslookup. eToolz allows you to query for A, PTR, NS, MX, and SOA records. The Ping tool offers the options pause, bytes, timeout and count, and traceroute lets you configure the number of hops and the timeout. Even though eToolz is a standalone program (it doesn’t have to be installed), it will store the IP addresses, host names, etc. that you enter, so the next time you want to ping a certain host, you can just select it from a drop-down-list. I think, in most cases, you will be faster with eToolz than with the command prompt tools because it can save you some typing exercises.
Source : 4sysops.com