The system is configured for a greater keep-alive time than recommended.

From Windows 2008 Domain Controller Security Technical Implementation Guide

Part of TCP Connection Keep-Alive Time

Associated with IA controls: ECSC-1

SV-29610r1_rule The system is configured for a greater keep-alive time than recommended.

Vulnerability discussion

Controls how often TCP sends a keep-alive packet in attempting to verify that an idle connection is still intact.

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Fix text

Configure the policy value for Computer Configuration -> Windows Settings -> Security Settings -> Local Policies -> Security Options -> “MSS: (KeepAliveTime) How often keep-alive packets are sent in milliseconds” to “300000 or 5 minutes (recommended)” or less.

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