Active Directory in Depth Cheat Sheet -Live

What is Forest?
It is the highest level management unit in the Active Directory (AD) structure, formed by the logical combination of multiple domains. Forest contains all domains and inter-domain relationships in AD.It must contain at least 1 domain.

Forest, Domain, Child Domain, Site, RODC, GC, Schema, FSMO, DSRM, LDAP

Domain Functional Level and Forest Functional Level: +Upgrade:

Forest Functional Level (FFL): Determines the operating system-based version of the Domain Controllers in all your Domain Controller servers in your Forest structure.
Domain Functional Level (DFL): Determines the operating system version of all Domain Controller servers within your domain structure on a Domain Controller basis.

> Domain > Properties
> Active Directory Domains and Trusts > Raise FL

DFL and FFL Levels:
Windows 2000 Native
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Windows Server 2012 R2
Windows Server 2016
Windows Server 2019
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Important Notes:
- In order to use new features, both DFL and FFL levels must be at the appropriate level.
- Each DFL and FFL level offers new features and improvements compared to previous levels.
- FFL and DFL levels cannot be lowered after they have been raised.

Active Directory DNS:

- AD cannot be established and managed without DNS.
- AD can be set up with an additional DNS.
- AD Data of integrated zones are kept in the AD Database.
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Active Directory Domains and Trusts:

Active Directory Sites and Services:

Active Directory Trust Relationships:

Domain Controller +Migration, +Backup & Restore, +Remove:

- Backup & Restore: Recycle Bin, System State, 3rd Party

Group Policy Management:

About LDAP:

LDAP Ports:
Port 389: (LDAP)
Port 636: (LDAPS)

Stay hungry to learn. .\Faruk GÜLER