Server 2003 Active directory

Introduction : Active directory service provides the means to manage the identities and relationships that make up network environments. Active directory as is
Stores information about object in a Windows server 2003 network and makes this information easy for administrators ans users to find and use and Microsoft active directory as is Given the importance of Microsoft Active Directory to your Windows environment, keeping it safe and secure is naturally a top priority for Windows administrators

There are two types of Active Directory groups :-
1) Security group and distribution group.
1) Security group :- These group can be assigned permission and consist of :User, group, and computer.
2: Distribution group : Distribution group used to group users for applications such as mail.

There are two types of Active directory structure:-
I) Logical Structure.
2) Physical Structure.
The logical structure of active directory include forest,domains,tree,OUS and global catalogs.
Domain : a group of computer and other resources that are part of a windows server2003 network and share a common directory database.

Global catalog : Global catalog used to catch information about all object in a forest , the global catalog enables users and applications to find object in an active directory domain tree if the user or application knows one or more attributes of the target object.
Tree : Tree as is collection of Active directory Domain, that means the trust relationship can be used by all other domain in the forest as a means to access the domain.

Organization Unit - Organization Unit is a Active directory container into which object can be grouped for per mission management.
Forest : Active directory forest as due to represents the external boundary of the directory service.
These are two types of active directory forest :-
I) Single Forest
2) Multiple forest

Some of these Active Directory includes part :-
Internet information services (IIS) :Internet information services used to webser,A built in component of windows server 2003 that allows access to resources on the server through various Internet protocols, such as POP3 IMAP4,HTTP SMTP and FTP.
Domain Naming Services (DNS) : Network services used to TCP/IP network to translated host name(Host name means computer name) to ip address.DNS resolve to host name to ip address for forward lookup Zone, and ip address to computer name for reverse lookup zone.
Transmission control protocol and Internet protocol(TCP/IP):-
This is a Microsoft product, transmission protocol is a connection and reailabe protocol,without Tcp/ip we can not Internet access, tcp/ip bydefult installed 2003 but IPversion 6 in not automatically install so we manually install in ip version6.The Transmission Control Protocol (TCP) is one of the core protocols of the Internet Protocol Suite.