Domain Information Groper ( DIG ) Basics

DNS or Domain Name System is the lifeline of the Internet, without it, it would be practically immpossible for computers to communicate over large networks. In this 2 part video series we will explore the DNS protocol using the DIG or Domain Name Groper utility. In Part-1 we will look at how to find the IP address of domain names such as google.com, find the authoritative name servers for a domain and the mail server address of a domain.

Links:

1. DNS Basics

2. DIG usage from Linux.com

Vivek Ramachandran is a security evangelist and has been working in computer security related fields for the past 7 years. In 2007, Vivek spoke at world renowned conferences Defcon (WEP Cloaking Exposed) and Toorcon (The Caffe Latte Attack). The discovery of the Caffe Latte Attack was covered by CBS5 news, BBC online, Network World etc news agencies.In 2006, Vivek was announced as one of winners of the Microsoft Security Shootout contest held in India among 65,000 participants. He has also been a recipient of a Team Achievement at Cisco Systems for his work on 802.1x and Port Security modules on the Catalyst 6500 switches. Currently he spends all of his time maintaining Security- Freak.Net , SecurityTube.Net and is the founder of an online startup (currently in stealth mode). Vivek, is a Bachelor in Electronics and Communications Engineering from the prestigious Indian Institute of Technology, Guwahati.You can contact him at vivek[at]securitytube.net