Part 1: Active Directory Infrastructure

3. Active Directory Under The Hood

Active Directory utilizes 2 main standards. These are the X.500 normal and LDAP. This video appearance at however the X.500 normal is employed to store the Active Directory objects within the information. It additionally appearance at however LDAP is employed to access this information and therefore the format LDAP uses.

NTDS.DIT

The Active Directory information by default is keep in c:\windows\NTDS\ntds.dit. This file is predicated on the X.500 normal. Originally Active Directory was known as NT Directory Services and this is often wherever the file got its name.

Each domain in Active Directory can have a separate information. Domain Controllers hold the copy of the information within the ntds.dit file and replicate changes to every different. If you've got quite one domain, then every separate domain can have its own copy of the ntds file.

Organization Units

In order to arrange objects in Active Directory a lot of simply, objects in Active Directory is organized into Organization Units, additionally called OUs. These OUs square measure like folders on your drive.

LDAP Syntax

LDAP uses a syntax that refers to the foremost important half 1st followed by smaller or precise elements after. This can be alternative|the alternative} of other systems, like filenames or methods. the most syntax of any LDAP command is like this example: CN=Joe, OU=Users, DC=FreeUrduNetworking, DC=Com. once associate object are often outlined unambiguously, like during this example, it's referred to as the distinguished name.