Active Directory I

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Active Directory I

  1. 1. ACTIVE DIRECTORY
  2. 2. Active Directory is a Directory Service which Contains Information of All User Accounts and Shared Recourses on a Network. Active Directory is a Centralized Hierarchical Directory Database ACTIVE DIRECTORY
  3. 3. What Is Active Directory? Directory service functionality <ul><li>Organize </li></ul><ul><li>Manage </li></ul><ul><li>Control </li></ul>Centralized management <ul><li>Single point of administration </li></ul>Active Directory Resources
  4. 4. 1.Provide User Logon and Authentication Services 2.To organize and manage: User Accounts Computers Groups and Network Resources 3 Enables authorized Users to easily locate: Network Resources PURPOSE OF ACTIVE DIRECTORY
  5. 5. 1.Fully Integrated Security 2.Easy Administration using Group Policy 3.Scalable to any Size Network 4.Flexible 1.Rename Computer Name and Domain Names 2.Cross-Forest Trust Relationship 3.Site-To-Site Replication is Faster 4.Active Directory Application Mode (ADAM) FEATURES OF ACTIVE DIRECTORY NEW FEATURES IN ACTIVE DIRECTORY 2003
  6. 6. How Directory Service Evolved Server (Directory System Agent) D irectory I nfo B ase D irectory I nfo T ree Backup Server Client (D irectory U ser A gent ) DAP DOP D irectory O rganization Management P rotocol Earlier we had no DATABASE Standard So ITU & ISO introduced X.500
  7. 7. DAP Directory Access Protocol is based on OSI Layers LDAP Lightweight Directory Access Protocol based on TCP/IP Layer DAP was introduced in BANYAN VINES It named the Database as STREET TALK LDAP was first Introduced in NOVELL Novell named it NDS ( Network Directory Services
  8. 8. Logical Structure of Active Directory FOREST TREE Parent/Root Child/Branch
  9. 9. Domains: Trees, Forests, Trusts, and Outs Active Directory is made up of one or more domains. Creating the initial domain controller in a network also creates the domain—you cannot have a domain without at least one domain controller. Each domain in the directory is identified by a DNS domain name. You use the Active Directory Domains and Trusts tool to manage domains. Domains: Trees, Forests Active Directory is made up of one or more domains. Creating the initial domain controller in a network also creates the domain—you cannot have a domain without at least one domain controller. Each domain in the directory is identified by a DNS domain name. You use the Active Directory Domains and Trusts tool to manage domains.
  10. 10. <ul><li>In the Windows 2003 operating system, a tree is a set of one or more domains with contiguous names. </li></ul><ul><li>If more than one domain exists, you can combine the multiple domains into hierarchical tree structures. </li></ul><ul><li>The first domain created is the root domain of the first tree. </li></ul><ul><li>Additional domains in the same domain tree are child domains. </li></ul><ul><li>A domain immediately above another domain in the same domain tree is its parent. </li></ul>TREE
  11. 11. TREE
  12. 12. <ul><li>Multiple domain trees within a single forest do not form a contiguous namespace; that is, they have noncontiguous DNS domain names. </li></ul><ul><li>Although trees in a forest do not share a namespace, a forest does have a single root domain, called the forest root domain. </li></ul><ul><li>The forest root domain is, by definition, the first domain created in the forest. </li></ul><ul><li>The two forest-wide predefined groups—Enterprise administrators and Schema administrators—reside in this domain. </li></ul>FOREST
  13. 13. Tree Forest Tree FOREST (Forest/Tree Root) CISCO.COM MCSE.COM (Tree Root) CCNA.CISCO.COM (Child Domain)
  14. 14. Physical Components of Active Directory Domain Controllers Sites
  15. 15. Sites Subnets are associated with sites A site can span multiple domains A domain can Span multiple sites zoom.com India USA WAN Link

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