In this lesson, you will review the major concepts involved in configuring and managing HAProxy. You will learn how frontends, backends, health checks, server availability, and load-balancing algorithms work together to provide a reliable service.

You will also be introduced to the Network File System, commonly known as NFS. NFS allows Linux systems to share files and directories over a network.

You will learn the roles of the NFS server and client, how directories are exported, how remote shares are mounted, and how permissions and export options control access.

By the end of this lesson, you should understand how HAProxy improves application availability and how NFS provides centralized file sharing between Linux systems.