TAILIEUCHUNG - Advanced Network and System Administration

Directory: A collection of information that is primarily searched and read, rarely modified. Directory Service: Provides access to directory information. Directory Server: Application that provides a directory service. | Advanced Network and System Administration Accounts and Namespaces Topics What is a directory? NIS LDAP OpenLDAP LDAP Authentication What is a Directory? Directory: A collection of information that is primarily searched and read, rarely modified. Directory Service: Provides access to directory information. Directory Server: Application that provides a directory service. Directories vs. Databases Directories are optimized for reading. Databases balanced for read and write. Directories are tree-structured. Databases typically have relational structure. Directories are usually replicated. Databases can be replicated too. Both are extensible data storage systems. Both have advanced search capabilities. System Administration Directories Types of directory data Accounts Mail aliases and lists (address book) Cryptographic keys IP addresses Hostnames Printers Common directory services DNS, LDAP, NIS Advantages of Directories Make administration easier. Change data only once: .

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