+SC-45(02) Secondary Authoritative Time Source

SC-45(02) Secondary Authoritative Time Source

Control

  1. Identify a secondary authoritative time source that is in a different geographic region than the primary authoritative time source; and
  2. Synchronize the internal system clocks to the secondary authoritative time source if the primary authoritative time source is unavailable.

Discussion

It may be necessary to employ geolocation information to determine that the secondary authoritative time source is in a different geographic region.

Assessment Objective

  1. a secondary authoritative time source is identified that is in a different geographic region than the primary authoritative time source;
  2. the internal system clocks are synchronized to the secondary authoritative time source if the primary authoritative time source is unavailable.

Assessment Method

Examine

System and communications protection policy procedures addressing time synchronization system design documentation system configuration settings and associated documentation system audit records system security plan other relevant documents or records

Interview

System/network administrators organizational personnel with information security responsibilities organizational personnel installing, configuring, and/or maintaining the system

1. Übersicht

Bezeichnung Standard

1.1 Referenzen

1.2 Identifizierte Anforderungen

1.3 Zugehörige Regulierungen

2. Identifizierte Anforderungen

Anforderungen
Quelle Anforderung

3. Zugehörige Regulierungen

Regulierungen
Quelle Regulierung

Verknüpfte Vorgänge

  • NIST -

    EN: Publications of the National Institute of Standards and Technology (NIST), U.S. Department of Commerce, https://www.nist.gov/, from their electronic versions (OSCAL; SP 800-63-4 from its HTML version, https://pages.nist.gov/800-63-4/). Works of NIST employees are not subject to copyright protection in the United States (17 U.S.C. § 105); the OSCAL content is dedicated to the public domain worldwide (CC0 1.0); outside the United States NIST grants the right to reprint its technical series publications in all formats (NIST copyright statement). Republished courtesy of the National Institute of Standards and Technology; each document names its citation. Divided into sections and converted into the GRCA format, the wording unchanged. Only the versions published by NIST are authoritative.

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