Oracle net 8 configuration and troubleshooting - Hugo Toledo

Net8 is the fundamental Oracle technology that allows Oracle
services and clients to communicate with each other over a network.
Net8 is most often used to connect client software to Oracle database
servers. It may also be used to connect database servers to one
another, allowing communication between distributed databases.This practical guide provides the information that readers, especially
database administrators, need to know in order to install configure,
tune, and troubleshoot Net8. It discusses how Oracle's network
architecture, products, and name resolution methods work, and it
provides the details of client and server configuration using a variety
of Oracle protocols and networking products, including:

• The Oracle Internet Directory (OID), Oracle's implementation of the standard Lightweight Directory Access Protocol (LDAP). This directory can be used to maintain a central repository of net service names that can be referenced by all clients.
• Oracle Names, a networking component used mainly in earlier
  versions of Oracle, that allows net service names to be defined centrally.
• Multi-Threaded Server (MTS), an environment in which the client connections share access to a pool of shared server processes.
• Oracle Connection Manager, a Net8 component that acts much like a router and provides protocol conversion, connection concentration, and access control.

The book also describes the utilities Oracle provides to help manage
a Net8 environment; these include the Listener Control Utility
(lsnrctl), the Oracle Names Control Utility (namesctl), the Oracle
Connection Manager Control Utility (cmctl), tnsping, and Net8 Assistant.
In addition, it provides a variety of networking troubleshooting techniques and
commonly encountered Net8 configuration problems, and provides
complete syntax for all networking files and commands.