TAILIEUCHUNG - Advanced User Administration

In this chapter, you will learn how to create and implement policies for managing disk usage—by user or by group. Next, you will learn how to upgrade, configure, compile, and install your own custom kernels. You will learn about the advantages and disadvantages of monolithic and modular kernels. You have three different ways to customize and optimize your kernel configuration for size and functionality. You will also learn the recommended techniques for configuring and installing the kernel. | RHCE RED HAT CERTIFIED ENGINEER 6 Advanced User Administration CERTIFICATION OBJECTIVES Q A Setting Up and Managing Disk Quotas Kernel Sources Kernel Recompilation and Installation The cron System System-Wide Shell Configuration Files for Bourne and Bash Shells Two-Minute Drill Self Test 296 Chapter 6 Advanced User Administration In this chapter you will learn how to create and implement policies for managing disk usage by user or by group. Next you will learn how to upgrade configure compile and install your own custom kernels. You will learn about the advantages and disadvantages of monolithic and modular kernels. You have three different ways to customize and optimize your kernel configuration for size and functionality. You will also learn the recommended techniques for configuring and installing the kernel. Finally you will learn how to set up the Linux startup shell configuration scripts so that users sessions are configured according to your and their requirements and how to schedule the periodic execution of jobs. For the RHCE exam the skills you learn in this chapter are important for the Installation and Network Services Exam. As described in the Red Hat Exam Prep guide the configuration elements of this exam require that you know how to manage accounts and set up the user environment. Managing kernels writing initialization scripts and scheduling jobs are all key skills for any Linux administrator. CERTIFICATION OBJECTIVE Setting Up and Managing Disk Quotas Quotas are used to limit a user s or a group of users ability to consume disk space. This prevents a small group of users from monopolizing disk capacity and potentially interfering with other users or the entire system. Disk quotas are commonly used by ISPs by Web hosting companies on FTP sites or on corporate file servers to ensure continued availability of their systems. Without quotas one or more users can upload files on an FTP server to the point of filling a .

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