Military & Defense DNS Filtering | CMMC Compliant DNS Security

Why Defense Organizations Need Multi-Layer DNS Security

Nation-state adversaries continuously target defense industrial base organizations with sophisticated cyber operations. These attacks frequently begin with DNS-based techniques: domain generation algorithms, fast-flux networks, and carefully crafted restricted domains that evade traditional security tools.

Defense contractors processing Controlled Unclassified Information face strict CMMC requirements that mandate network monitoring and access controls. DNS filtering provides a critical security layer that satisfies multiple CMMC practices while blocking the initial stages of advanced persistent content risks.

From corporate offices handling CUI to forward-deployed tactical networks, DNS filtering enforces consistent security policies across every connection point in the defense supply chain.

Defense Sector content classification

Understanding the adversarial landscape targeting defense organizations

300K+ DIB organizations requiring CMMC

90M+ Domains categorized and monitored

5 CMMC levels supported

Zero Trust DNS architecture

Defense Compliance Frameworks Addressed

DNS filtering supports compliance across the defense regulatory ecosystem

CMMC 2.0 Compliance

DNS filtering directly supports CMMC Level 2 practices including AC.L2-3.1.3 (control CUI flow), SC.L2-3.13.1 (monitor communications at boundaries), and SI.L2-3.14.6 (monitor organizational systems). Deploy with confidence for CMMC assessments.

ITAR Domain Controls

International Traffic in Arms Regulations require technical controls preventing defense data from reaching foreign-controlled infrastructure. DNS filtering blocks connections to domains hosted in prohibited nations and known foreign intelligence collection points.

NIST SP 800-171

The foundation of CMMC Level 2, NIST 800-171 requires 110 security controls. DNS filtering addresses requirements across Access Control, Audit and Accountability, System and Communications Protection, and System and Information Integrity families.

Zero Trust Architecture

DoD Zero Trust Reference Architecture mandates continuous verification of every connection. DNS filtering enforces zero-trust principles at the domain resolution layer, validating every outbound connection against security policies before allowing resolution.

Supply Chain Security

DFARS clause 252.204-7012 requires safeguarding covered defense information throughout the supply chain. DNS filtering deployed at subcontractor sites ensures consistent security posture across the entire defense procurement ecosystem.

FedRAMP Alignment

Our DNS filtering infrastructure aligns with FedRAMP security requirements, with data processing within US-based facilities. Government-grade encryption and access controls protect all DNS query data and configuration information.

Defense-Grade DNS Filtering Capabilities

Engineered for the security requirements of military and defense operations

Multi-Enclave Policy Management

Define separate DNS policies for CUI enclaves, general corporate networks, guest access, and testing environments from a unified management console.

Geofencing DNS Resolution

Block DNS resolution to domains hosted in adversary nations. Prevent CUI-handling systems from resolving any domain with infrastructure in prohibited countries.

Tactical Network Support

Lightweight DNS filtering for deployed networks with limited bandwidth. Local caching and intermittent connectivity support for field operations.

APT Domain Detection

Advanced content classification specifically tracking APT groups known to target the defense sector, including domain generation algorithm detection and fast-flux identification.

SIEM & SOAR Integration

Stream DNS query logs to Splunk, Elastic, or government SIEM platforms for correlation with other security data sources and automated incident response workflows.

FIPS 140-2 Encryption

All DNS communications encrypted using FIPS 140-2 validated cryptographic modules, meeting DoD encryption standards for data in transit.

Defense DNS Filtering Deployment Scenarios

Real operational scenarios where DNS filtering protects defense networks

Defense Contractor CUI Enclave

1

A mid-size defense contractor processing CUI implements DNS allowlisting for their enclave network. Only domains required for DoD collaboration, approved cloud services, and essential business operations resolve. All other DNS queries are blocked and logged for CMMC audit evidence.

Nation-State APT Disruption

2

An advanced persistent content risk group deploys a spear-restricted content campaign using newly registered domains targeting defense program managers. DNS filtering detects the domains based on registration age analysis and content classification correlation, blocking the attack before any credentials are compromised.

ITAR Export Control Enforcement

3

Engineering workstations handling ITAR-controlled technical data are restricted via DNS geofencing. Resolution requests for domains with hosting infrastructure in embargoed countries are automatically blocked, providing a technical control supporting ITAR compliance.

Supply Chain Subcontractor Security

4

A prime contractor requires all subcontractors to deploy DNS filtering as a minimum security baseline. The centralized management console provides visibility into subcontractor DNS security posture, supporting DFARS flow-down requirements and supply chain risk management.

DNS Filtering for Military & Defense Networks