May 14, 2026 Version 2.4.0 Released Includes a brand-new system update tool, stability and UI improvements, and bug fixes.

ShadowSentry™

Unparalleled DNS Protection for Hybrid Networks

Based on Pi-hole® | Enhanced by BLACKBOX™ AI

Built on independently engineered hybrid network foundations, delivering industry-leading security through advanced DNS filtering and encrypted resolution protocols.

65,000,000+
Malicious Domains Blocked

Advanced Security Features

🛡️

Hybrid Network Protection

Built on proven hybrid infrastructure for which Harmonious Platform Systems is gaining recognition, delivering maximum uptime and unmatched security resilience.

🌐

Multi-Layer DNS Security

Comprehensive protection against 65+ million known malicious domains, updated in real-time to block emerging threats before they reach your network.

🔒

Encrypted DNS Standards

The latest DoQ/DoH/DoT protocols ensure all DNS queries are encrypted end-to-end, preventing eavesdropping and manipulation of internet-bound queries.

👨‍💻

Secure Upstream Selection

Carefully curated secure upstream servers provide redundancy and optimal performance while maintaining the highest security standards.

🔥

IPFire Firewall Integration

Enhanced protection when paired with industry-leading firewall technology, creating multi-layered defense against external network intrusions.

🎭

Cloud-Based DNS, VPN & Tor

Seamless integration with cloud-based DNS, VPN, and Tor networks for maximum privacy and anonymity without compromising security or performance.

AI-enhanced Dashboard

Real-time traffic feedback with dual-layer threat assessment: AI-enhanced threat prediction supported by human input.

Threat Intelligence and Analysis
Threat Intelligence and Analysis Hub
Real-time blocking statistics with AI confidence scoring and human verification badges.
Threat Prediction Modeling
Threat Prediction Modeling
BLACKBOX™ AI emerging threat forecasts before they activate, enabling strategic network security planning.

High-End Hardware

Purpose-built hardware. Open-source software. Peak performance.

ShadowSentry Hardware Appliance

Strengthened Devuan GNU+Linux (Excalibur 6) operating system.


Devuan GNU+Linux logo

With custom redundancy to ensure service uptime.

Technical Architecture

Unbound+
Advanced DNS resolver with extended security features
dnsproxy
High-performance DNS resolution and encryption, supporting DoQ
DNSCrypt
DNS resolution and encryption, supporting DoH
Stubby
DNS resolution and encryption, supporting DoT
DoQ/DoH/DoT
Latest encrypted DNS protocol standards
IPFire Firewall
Industry-leading network security protection
Cloud-Based DNS
Enhanced DNS filtering using cloud-based NextDNS®
VPN + Tor
VPN integration for secure split-tunneling and onion routing for maximum security

Ready to Secure Your Network?

Join the next generation of network security with ShadowSentry™

Get a Custom Quote

All pricing and related costs are available upon request.