Overview
This chapter deals with one of the most important areas of network security and support: Backing up and restoring data. Backups are another key component in a comprehensive security plan. We will cover the most common network and workstation backup strategies and then introduce the built-in UNIX backup utilities. In order to back up or easily transfer files via ftp or another method, you need to be able to package and restore the files easily. In this chapter, you will work with the Tape Archive (tar) and Java Archive (jar) utilities to perform backups of data as well as restoring data from backups. We will also cover the UNIX file compression utility and the use of File Manager to perform basic backup tasks. In addition, specific instructions for backing up and restoring your home directory using tar and compress are included.