dig (Domain Information Groper) is a versatile command-line utility used for querying DNS (Domain Name System) name servers. It allows users to retrieve detailed information about various DNS records, including host addresses (A records), mail exchanges (MX records), name servers (NS records), and more. System administrators and network engineers commonly utilize dig for DNS troubleshooting due to its flexibility and comprehensive output.
Unlike older tools like nslookup, dig provides a more detailed and structured output, making it easier to analyze DNS responses. It supports both IPv4 and IPv6 queries, reverse lookups, and can query specific DNS servers. Additionally, dig can be used to trace the DNS resolution path and perform DNSSEC validation, aiding in diagnosing complex DNS issues.
Whether you're verifying DNS configurations, investigating propagation delays, or simply exploring DNS records, dig serves as an indispensable tool in a network professional's toolkit.
Features
Installation Guide
Debian/Ubuntu:
CentOS/Fedora:
Arch Linux:
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