← Back to Microsoft Windows Server 2025 Security Technical Implementation Guide

V-278019

CAT II (Medium)

Windows Server 2025 must not have the Peer Name Resolution Protocol installed.

Rule ID

SV-278019r1180763_rule

STIG

Microsoft Windows Server 2025 Security Technical Implementation Guide

Version

V1R1

CCIs

CCI-000381

Discussion

Unnecessary services increase the attack surface of a system. Some of these services may not support required levels of authentication or encryption or may provide unauthorized access to the system.

Check Content

Open PowerShell.

Enter "Get-WindowsFeature | Where Name -eq PNRP".

If "Installed State" is "Installed", this is a finding.

An Installed State of "Available" or "Removed" is not a finding.

Fix Text

Uninstall the "Peer Name Resolution Protocol" feature.

Start Server Manager.

Select the server with the feature.

Scroll down to "ROLES AND FEATURES" in the right pane.

Select "Remove Roles and Features" from the drop-down "TASKS" list.

Select the appropriate server on the "Server Selection" page and click "Next".

Deselect "Peer Name Resolution Protocol" on the "Features" page.

Click "Next" and "Remove" as prompted.