Details
Provides identity services for the Peer Name Resolution Protocol (PNRP) and Peer-to-Peer Grouping services.
The recommended state for this setting is: Disabled.
Rationale:
Peer Name Resolution Protocol is a distributed and (mostly) serverless way to handle name resolution of clients with each other. In a high security environment, it is more secure to rely on centralized name resolution methods maintained by authorized staff.
Solution
To establish the recommended configuration via GP, set the following UI path to: Disabled.
Computer ConfigurationPoliciesWindows SettingsSecurity SettingsSystem ServicesPeer Networking Identity Manager
Impact:
The Peer Name Resolution Protocol (PNRP) and Peer-to-Peer Grouping services may not function, and some applications, such as HomeGroup and Remote Assistance, may not function correctly.
Default Value:
Manual
CIS Controls:
Version 6
9.1 Limit Open Ports, Protocols, and Services
Ensure that only ports, protocols, and services with validated business needs are running on each system.
Version 7
9.2 Ensure Only Approved Ports, Protocols and Services Are Running
Ensure that only network ports, protocols, and services listening on a system with validated business needs, are running on each system.
Supportive Information
The following resource is also helpful.
This security hardening control applies to the following category of controls within NIST 800-53: Configuration Management.This control applies to the following type of system Windows.