DNS Zone Transfer using DIG

DNS Zone Transfer is generally used for DNS database replications and backups. In this video we will look at how a DNS Zone Transfer can be done using the Dig utility. An interesting point which we will see is that not all DNS servers are configured to allow DNS zone transfers to any public request for a transfer. The DNS Zone transfer is also sometimes symbolized with the opcode mnemonic AXFR, which is the DNS transaction type used to signify a DNS Zone Transfer.

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