Introduction
In large organizations, the application systems are usually implemented on different layers. There may exist different types of clients, from application servers to simple clients, and all these applications need to communicate somehow with a database or several database servers. All the clients must be configured to know about the database servers. The configuration is made at server-level and client-level and is about what type of protocol is used and its related specifics and the type of database server where the clients connect (DB2 LUW, i/OS, or z/OS). DB2 supports and comes with a lot of utilities and wizards to set up a reliable network communication. In the next series of recipes, we'll cover a lot of aspects related to how to set up network communications.