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Which of the following is a component of LDAP?
DN, DC, & OU
OU
DN
DC
These are parts of the X.500 Directory Specification which defines nodes in a LDAP directory.
DN=Distinguished Name The LDAP API references an LDAP object by its distinguished name (DN) A DN is a sequence of relative distinguished names (RDN) connected by commas.
DC=Domain Component=Distinguished Names based on DNS. DNS domain names can be mapped directly into the LDAP namespace. If you have a unique DNS domain name it ensure that your LDAP DN's are also unique. You use dc= for each part of the domain name. [IE: google.com would have a DN of dc=google, dc=com] A person (Dave Jones)in a domain(example.com) would be cn=Dave Jones, dc=example, dc=com CN stands for common name. To identify login accounts you use uid= so djones@example.com would be. uid=djones, dc=example, dc=com
OU=Organizational Unit This is the X.500 style of DNs. X.500 has its own hierarchy that LDAP copies a lot from. OU=Organizational Unit, O=Organization, C=Country In this case if Dave Jones was an (OU)sales account manager for (O)Gimme ur money LLC based in San Francisco you would represent this as CN=Dave Jones, OU=Sales, O=Gimme ur money LLC, C=USA
The benefit of this is that you can present your information to the rest of the world as a type of LDAP (detailed) contacts list. The drawback is where do you get organization names that are truly unique within a particular country? GL with that! I'll just use Domain Names!
RFC 2247 RFC 2251 RFC 2256 RFC 2377
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