We covered a lot of ground in this chapter. We began with a thorough discussion of the WebLogic Server product architecture to give us a good understanding of how the product works. We followed that with a discussion of other administrative concepts, such as server health states and network channels. The rest of the chapter was dedicated to covering WebLogic Server administration including configuration, monitoring, and management of WebLogic Server and WebLogic Server-based applications. We hope that this gives you the basic fundamentals of WebLogic Server administration. These basics should go a long way toward demystifying the complex task of administering J2EE applications running on WebLogic Server. In the next chapter, we will explore WebLogic Server performance optimization.