1. CEG 2400 Fall 2012 Directory Services - LDAP
eDir
LDAP
Active
Directory

2. LDAP (Lightweight Directory Access Protocol)
LDAP is a protocol, Now at version 3
Strictly speaking, though, LDAP isn't a database at all, but a protocol used to access information stored in an information directory
LDAP directory servers soon followed
Different NOSs can share and be accessed by using this protocol

3. LDAP Directory Servers
They use LDAP to access the information stored in a directory database
They all have the same characteristics
Object
Thing or person associated with network
Attributes
Properties associated with object
Values
Information stored in attributes 3

4. LDAP Directory Servers
Schema
Set of definitions of the kinds of objects and object-related information contained in directory
Two types of definitions:
Classes (object classes):
identifies object type specified in directory
Attributes:
stores information about object 4

5. Schema elements associated with a User account object5

6. LDAP Directory Servers
Containers (OUs or organizational units)
Logically defined receptacles
Assemble similar objects
Account
User record containing all properties
LDAP standard
Directories and its contents form trees
Tree
Logical representation of multiple, hierarchical levels within directory
Root, branches, leafs 6

7. Identifying and Organizing Network Elements
A directory tree 7

8. LDAP Directory Servers
Advantages
Cross-platform support
Standards-based
LDAP aware applications
Open Source

9. LDAP Directory Servers
An example of an individual LDAP entry
dn: uid=fsmith, ou=employees, dc=foobar, dc=com  
objectclass: inetOrgPerson  
uid: fsmith  
givenname: Fran  
sn: Smith  
cn: Fran Smith  
telephonenumber:  
mailAddress:  
userpassword: {crypt}3x1231v76T89N  

10. Summary Commonly used protocol Objects, Attributes, Schema
Used with directory services
Objects, Attributes, Schema
Containers and Leaf objects

11. Directory Services - LDAP
eDir
LDAP
Active
Directory
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