Dig stands for domain information groper and is included with most standard Linux distributions. Dig can be used to query a DNS server for various records such as IP address lookup for an Domain name, finding email and name servers for a domian, reverse DNS lookups, DNS zone transfers etc. Dig is definitely the swiss knife for a DNS hacker.
Video:
If you are interested in adding a text or video tutorial to this page, then please visit the contribute page for guidelines.
