last sync: 2024-Nov-25 18:54:24 UTC

Microsoft Managed Control 1127 - Time Stamps | Regulatory Compliance - Audit and Accountability

Azure BuiltIn Policy definition

Source Azure Portal
Display name Microsoft Managed Control 1127 - Time Stamps
Id 3ce328db-aef3-48ed-9f81-2ab7cf839c66
Version 1.0.0
Details on versioning
Versioning Versions supported for Versioning: 0
Built-in Versioning [Preview]
Category Regulatory Compliance
Microsoft Learn
Description Microsoft implements this Audit and Accountability control
Additional metadata Name/Id: ACF1127 / Microsoft Managed Control 1127
Category: Audit and Accountability
Title: Time Stamps - Audit Records
Ownership: Customer, Microsoft
Description: The information system: Uses internal system clocks to generate time stamps for audit records; and
Requirements: For all Azure assets, audit records generated capture the time stamp from the internal system clock of the asset that generated the event. Azure implements time stamps stored in UTC format using NTP Version 3, which is based on the time standard from the United States Naval Observatory. NTP is a protocol designed to synchronize the clocks of computers over a network to a common time base. Azure uses stratum 1 time sources in the United States for the infrastructure. Every pair of redundant core Azure datacenter routers (DCRs) provides clock information to the Azure datacenter devices. The overall approach is to use the DCRs as NTP servers. The DCRs synchronize off the authoritative stratum 1 time sources, with Azure equipment synchronizing off the DCRs. The Azure NTP stratum 1 time servers sync off of the Global Positioning System (GPS) satellites. The same IP addresses for NTP are configured on the DCRs in each Azure datacenter, with routing tables being used to determine the closest source to any given client via an anycast-style solution. These IP addresses are in management IP space and synchronization is done over the management network, which addresses ACL issues.
Mode Indexed
Type Static
Preview False
Deprecated False
Effect Fixed
audit
RBAC role(s) none
Rule aliases none
Rule resource types IF (2)
Microsoft.Resources/subscriptions
Microsoft.Resources/subscriptions/resourceGroups
Compliance Not a Compliance control
Initiatives usage none
History none
JSON compare n/a
JSON
api-version=2021-06-01
EPAC