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What are AD Sites in DCs ?

  • Active Directory Sites are typically geographically separated zones within your AD forest.
  • Sites are configured for the forest – meaning all domains in the forest have the same site configuration.
  • Why are sites important?
  • Simply put, how DCs replicate within a site and between the sites are different.
  • Replication between DCs in the same site is called “Intra-site replication”
  • Replication between sites is called “Inter-site replication”
  • AD Queries such as Authentication requests are kept local.
  • We will talk about the differences between replication methods, how it works, what exactly is replicated and considerations for creating sites.