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Flexible CLI tool for querying DNS name servers, troubleshooting record propagation, verifying DNSSEC signatures, and diagnosing zone delegations.
A standard NETWORKING utility used across offensive reconnaissance, packet forensics, and defensive system administration.
Direct visibility into network interfaces, protocol frames, access controls, or filesystem structures without graphical overhead.
During live system triage, initial reconnaissance, forensic capture inspection, or baseline configuration auditing.
# Debian / Ubuntu
sudo apt install bind9-dnsutils
# RHEL / Fedora
sudo dnf install bind-utils
# macOS
brew install bindEssential DNS query syntax:
- Query specific nameserver: dig @1.1.1.1 example.com A
- Inspect all records with short response: dig example.com ANY +noall +answer
- Reverse IP DNS lookup: dig -x 8.8.8.8 +short
- Trace delegation hierarchy: dig example.com +trace