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Certification Summary
This chapter covered basic configuration and administration of a Red Hat Enterprise Linux system. We learned the steps necessary to create a basic user, how to populate a user's home directory with the templates in /etc/skel, and where window manager configuration files are located. We also covered the different types of filesystems Linux uses, discussed how to mount them, and described what mount options to use with them.This chapter covered the management of RPM packages. We learned the steps necessary to validate a package signature, how to add, remove, and upgrade packages, and how to add updates. We also talked about verifying packages and how to see what package a file belongs to. We finished the topic with a discussion on installing SRPMs and building RPMs from SRPMs and tar archives.We addressed the configuration files in the /etc/sysconfig hierarchy. Some are important for networking; others are important for basic parameters such as the system clock, mouse, and keyboard. We also discussed a number of related networking commands, including ifup, ifdown, ifconfig, netstat, arp, and dhclient.We concluded the chapter by describing some of the Red Hat GUI tools that you can use if you forget how to configure some key configuration files during the Red Hat exams.
