Is it safe to publish real CPU and OS details in public DNS?

No. Publishing real OS versions on public authoritative DNS allows attackers to fingerprint software vulnerabilities. Use real details only on private internal networks.

Updated: August 2026 • Verified v1.2

DNS HINFO (Hardware & OS) Record & RFC 8482 Anti-DDoS Generator

Internet & NetworkNew

Local Browser Execution: Your input is processed locally in your browser and is not sent to UTL servers.

<domain> <ttl> IN HINFO <cpu-string> <os-string>

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Understanding Your Results

Generates syntactically validated BIND master file records, PowerDNS SQL inserts, and raw RFC 1035 RDATA wire octet hex dumps, supporting both modern RFC 8482 anti-DDoS mode and internal host inventory mode.

Practical Guidance & Next Steps

RFC 8482 recommends authoritative DNS servers return a synthesized HINFO record ('RFC8482' '') when queried with QTYPE=ANY, dramatically reducing the response packet size and neutralizing DNS reflection attack vectors.

What is this?

A network engineering utility that generates RFC 1035 DNS HINFO records and modern RFC 8482 anti-DDoS response synthesis configurations.

How does it work?

1. Enter FQDN domain and TTL. 2. Choose between RFC 8482 Anti-DDoS Mode or Custom Host Inventory Mode. 3. Copy BIND zone record, PowerDNS SQL insert, or inspect wire format octets.

Why use it?

Standardizes authoritative DNS zone record creation and protects infrastructure against high-volume DNS reflection amplification attacks.

Technical Scope & Calculation Limitations

RFC 1035 and RFC 8482 DNS specification formats.

Frequently Asked Questions

RFC 8482 allows authoritative DNS nameservers to return a minimal synthesized HINFO record or single RRset in response to ANY queries, suppressing DDoS reflection amplification.

Windows Desktop & Widget Options