قرأت التالي في FSMO Rules عن Infrastructure Master:
Infrastructure Master:
When an object in one domain is referenced by another object in another domain, it represents the reference by the GUID, the SID (for references to security principals), and the DN of the object being referenced. The infrastructure FSMO role holder is the DC responsible for updating an object's SID and distinguished name in a cross-domain object reference. At any one time, there can be only one domain controller acting as the infrastructure master in each domain.
Note: The Infrastructure Master (IM) role should be held by a domain controller that is not a Global Catalog server (GC). If the Infrastructure Master runs on a Global Catalog server it will stop updating object information because it does not contain any references to objects that it does not hold. This is because a Global Catalog server holds a partial replica of every object in the forest. As a result, cross-domain object references in that domain will not be updated and a warning to that effect will be logged on that DC's event log. If all the domain controllers in a domain also host the global catalog, all the domain controllers have the current data, and it is not important which domain controller holds the infrastructure master role
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واللي شدني المكتوب عن Global Catalog في Note
فهل يعني هذا انه ماينفع يكون السيرفر اللي عليه Infrastructure Master يكون Global Catalog
وما هو الضرر اللي رح يحدث .
واذا كان نعم فماهو الوضع عندما يكون هناك سيرفر واحد في الشبكة .