Active Directory: 
Active Directory Schema:

The Active Directory Schema acts as as blue print for ADDS by Defining the Attributes, Objects & Classes.

Contents of Attribute:

1> ObjectSID

2> sAMAccount Name

3> Location

4> Manager

5> Department

Contents of Classess:

1>User

2>Group

3>Computer

4>Site

Contents of Objects:

1> User Names

2> Computer Names

Active Directory Snapshots:

To List, Mount& Create Active Directory Snapshots:

1> ntdsutil

2> ntdsutil:activate instance ntds

Active instance set to “ntds”

ntdsitil:snapshot

snapshot:

3> List all Previous snapshots:

snapshot: list all

4> List Mounted snapshots:

snapshot: list mounted

5> List all other options:

snapshot: help

6> To create snapshot: (Take the snapshot of the current Active Directory Instance)

snapshot: create

7> To Mount the snapshot:

snapshot: mount 5 (Example: 5- is the snapshot ID)

8> snapshot: quit

9> ntdsutil: quit

10> Specify the path of the snapshot containing ntds.dit:

dsmain -dbpath C:\$NAP…….\Windows\NTDS\ntds.dit -ldapPort 51839