DNS Security

DNS Security Fundamentals

HxHippy

27 Nov 2025 — 1 min read

DNS is fundamental to internet functionality but often overlooked from a security perspective. Attackers frequently target DNS infrastructure.

Common DNS Attacks

DNS Spoofing: Injecting false DNS records to redirect users.

DNS Tunneling: Using DNS queries to exfiltrate data.

DNS Amplification: Abusing resolvers for DDoS attacks.

Domain Hijacking: Gaining unauthorized control of domain registration.

DNSSEC

DNS Security Extensions add cryptographic signatures enabling:

Authentication of DNS responses
Data integrity verification
Protection against cache poisoning

Best Practices

Implement DNSSEC
Use DNS over HTTPS (DoH) or DNS over TLS (DoT)
Monitor DNS logs for anomalies
Lock domain registrations
Use reputable DNS providers
Implement Response Policy Zones (RPZ)

DNS Firewall Benefits

Block malicious domains
Prevent data exfiltration
Enforce acceptable use policies
Visibility into DNS traffic

For DNS security assessment, visit Kief Studio.

This is a testing site for Kief Studio, unauthorized testing prohibited

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