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AD-SITE-03: Sites without domain controllers details should be retrievable

ID AD-SITE-03
Severity Info
Suite Active Directory (on-premises)
Product Active Directory
Feature Sites and subnets
Security area Infrastructure hardening
Resource type AdSite
Reads from On-premises Active Directory

Understanding which specific sites lack domain controllers is essential for:

  • Capacity planning: Identifying locations that may need DC deployment
  • Troubleshooting: Pinpointing sites that may experience authentication issues
  • Documentation: Maintaining accurate records of DC deployment status
  • Risk assessment: Evaluating the impact of WAN failures on authentication

Each site without a DC represents a potential single point of failure for authentication in that location.

Operational

For each site without a DC:

  1. Verify if the site represents an active physical location
  2. Assess the reliability and bandwidth of WAN connectivity
  3. Consider deploying an RODC if the site has users or resources
  4. Document the rationale for not having a local DC
  5. Monitor authentication latency from these sites

This test retrieves all sites and domain controllers, then identifies and lists specific sites that have no associated domain controllers.

  • Test-MtAdSiteWithoutDcCount - Counts sites without DCs
  • Test-MtAdSiteTotalCount - Counts total sites in the domain

Mito check. Author: soulemike. Open-source licences.

Open-source licences. CIS Benchmark material © Center for Internet Security, Inc.; CISA SCuBA baselines are public domain (CC0).

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