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Active Directory

Active Directory. Replication. IntraSite Replication. Topology generated automatically by Knowledge Consistency Checker (KCC) Creates replication partners Up to three DCs, all are replication partners of each other Maximum of three hops to complete replication

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Active Directory

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  1. Active Directory Replication

  2. IntraSite Replication • Topology generated automatically by Knowledge Consistency Checker (KCC) • Creates replication partners • Up to three DCs, all are replication partners of each other • Maximum of three hops to complete replication • Changes generally replicated within 5 minutes (maximum 15 minutes to replicate to all DCs) • Urgent changes replicated immediately (e.g. password changes) • Can create topology manually (but don’t)

  3. IntraSite Replication cont. • Use AD Sites and Services to view replication partners • NTDS Settings for server • Can manually force replication • Use Replication Monitor (Support Tools) • Repadmin (command line)

  4. InterSite Replication • Site — group of subnets • Replication Topology determined automatically • InterSite Replication compressed • Can be scheduled • Configure using AD Sites and Services • More likely to want to configure intersite replication topology etc. manually

  5. Replication Conflicts • Attributes replicated, not objects • Less conflicts • E.g. phone no. change on one DC and office no. change on another for same user will not conflict — both will occur • Methods of dealing with other conflicts, e.g. renaming objects, moving same object

  6. Viewing Replication Topology • Replmon (support tools) • AD Sites and Services • Sites/Sitename/Servers/Servername/NTDS Settings

  7. Manual Replication Using Active Directory Sites and Services • Right click on connection entry and choose Replicate Now • NB One-way replication, i.e. only replicates from replication partner shown in From Server column to server whose NTDS Settings you are viewing • To replicate in both directions must do same with connection to this server under partner’s NTDS Settings

  8. Manual Replication Using Replication Monitor • More flexible • Synchronize DC with all other servers • Right-click on server name/Synchronize each directory partition with all servers • Synchronize a partition with all other servers • Right-click on CN entry/Synchronize this directory partition with all servers • Synchronize a partition with a replication partner • Right-click on replication partner entry below CN entry/Synchronize with this replication partner

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