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|System Administration Guide: Naming and Directory Services (DNS, NIS, and LDAP)|
The following table shows a comparison between the DNS, NIS, NIS+, and LDAP naming services.
LDAP enables you to consolidate information by replacing application-specific databases, which reduces the number of distinct databases to be managed.
LDAP allows data to be shared by different naming services.
LDAP provides a central repository for data.
LDAP allows for more frequent data synchronization between masters and replicas.
LDAP is multi-platform and multi-vendor compatible.
Following are some restrictions associated with LDAP naming services:
Clients prior to Solaris 8 are not supported.
An LDAP server cannot be its own client.
Setting up and managing an LDAP naming services is more complex and requires careful planning.
A NIS client and a Native LDAP client cannot co-exist on the same client machine.
Note - A directory server (an LDAP server) cannot be its own client. That is, you cannot configure the machine that is running the directory server software to become an LDAP naming services client.