USB, secure shell, and file sharing -- the last of four tutorials designed to prepare you for the Linux Professional Institute's 102 exam. This tutorial introduces you to the ins and outs of using USB devices, how to use the secure shell (ssh) and related tools, and how to use and configure Network File System (NFS) version 3 servers and clients. This tutorial is ideal for those who want to learn about or improve their foundational Linux USB, networking, and file sharing skills.