CCI-001182

Ensure the systems that collectively provide name/address resolution service for an organization are fault-tolerant.

Implementation Guidance

Determine if: - the systems that collectively provide name/address resolution services for an organization are fault-tolerant. - the systems that collectively provide name/address resolution services for an organization implement internal role separation. - the systems that collectively provide name/address resolution services for an organization implement external role separation.

Validation Procedures

Examine: [SELECT FROM: System and communications protection policy; procedures addressing architecture and provisioning for name/address resolution services; access control policy and procedures; system design documentation; assessment results from independent testing organizations; system configuration settings and associated documentation; system audit records; system security plan; other relevant documents or records]. Interview: [SELECT FROM: System/network administrators; organizational personnel with information security responsibilities; organizational personnel with responsibilities for managing DNS]. Test: [SELECT FROM: Mechanisms supporting and/or implementing name/address resolution services for fault tolerance and role separation].

The controls below (if any) were marked by NIST as being related to CCI-001182.