1.考生必须必须掌握以下基本技能，因为它们是RHCT和RHCE考试中必考的内容
* use standard command line tools (e.g., ls, cp, mv, rm, tail, cat, etc.) to create, remove, view, and investigate files and directories
* use grep, sed, and awk to process text streams and files
* use a terminal-based text editor, such as vi/vim, to modify text files
* use input/output redirection
* understand basic principles of TCP/IP networking, including IP addresses, netmasks, and gateways
* use su to switch user accounts
* use passwd to set passwords
* use tar, gzip, and bzip2v
* configure an email client on Red Hat Enterprise Linux
* use mozilla and/or links to access HTTP/HTTPS URLs
* use lftp to access FTP URLs
2.RHCT知识点
排错和系统维护
* boot systems into different run levels for troubleshooting and system maintenance
* diagnose and correct misconfigured networking
* diagnose and correct hostname resolution problems
* configure the X Window System and a desktop environment
* add new partitions, filesystems, and swap to existing systems
* use standard command-line tools to analyze problems and configure system
安装配置
* perform network OS installation
* implement a custom partitioning scheme
* configure printing
* configure the scheduling of tasks using cron and at
* attach system to a network directory service, such as NIS or LDAP
* configure autofs
* add and manage users, groups, and quotas
* configure filesystem permissions for collaboration
* install and update RPMs
* properly update the kernel RPM
* modify the system bootloader
* implement software RAID at install-time and run-time
* use /proc/sys and sysctl to modify and set kernel run-time parameters
3.RHCE知识点
排错和系统维护
RHCE除了必须具有上述RHCT技能以外，还应该具有以下技能：
* use the rescue environment provided by first installation CD
* diagnose and correct boot failures arising from bootloader, module, and filesystem errors
* diagnose and correct problems with network services (see Installation and Configuration below for a list of these services)
* add, remove, and resize logical volumes
安装配置
RHCE除了必须具有上述RHCT技能以外，还必须掌握以下网络服务的配置和使用：
* HTTP/HTTPS
* SMB
* NFS
* FTP
* Web proxy
* SMTP
* IMAP, IMAPS, and POP3
* SSH
* DNS
对于以上每一种服务，RHCE必须具备如下技能：
* install the packages needed to provide the service
* configure the service to start when the system is booted
* configure the service for basic operation
* Configure host-based and user-based security for the service
RHCE必须同时掌握：
* configure hands-free installation using Kickstart
* implement logical volumes at install-time
* use PAM to implement user-level restrictions
英文：
Components of the RHCE Exam
The RHCE Exam consists of three sections:
Section I: Troubleshooting (2.5 hours)
Section II: Multiple Choice (1.0 hour), and
Section III: Installation and Configuration (2.5 hours)
In order to pass the Red Hat Certified Engineer exam on Red Hat Linux 8.0 you must meet the following requirements: a) an average score of 80 or higher across all three sections, equally weighted; b) no section score lower than 50 points; c) 70 percent or more on the RHCT-level skills and 70 percent or more on the RHCE-level skills in Section III. This last requirement is new, and enables RHCEs to demonstrate that they possess both RHCT-level and RHCE-level skills, as well as enabling a person who only has RHCT level skills to earn RHCT if they pass the required competencies.
Study Points for the RHCE Exam
Red Hat cannot provide a laundry list of minute details about the RHCE exam. Persons who have taken the RHCE Exam have signed a Confidentiality Agreement not to share details about the RHCE Exam. The integrity of the RHCE Exam depends on the integrity of the community of persons who take the Exam.
Experienced Linux system administrators seeking to take the exam without preparing first through Red Hat's courses may find that the list below is a useful guide to preparation. Red Hat does not represent the list below as complete or comprehensive, and does not guarantee individual performance or results on the RHCE Exam based on this list.
Those planning to take the RHCE Exam should:
Understand disk partitioning and know how to use Red Hat's install-time partitioning tools.
Be thoroughly familiar with, and capable of, Red Hat installation, particularly network installations.
Understand install-time configuration elements (LILO/GRUB, authentication, networking, system initialization, packages, etc.).
Understand and be able to implement post-installation configuration of install-time options.
Be familiar with Red Hat Linux filesystem layout.
Understand the role of the scripts and configuration files under /etc/sysconfig/network-scripts.
Understand different approaches to multiple-boot installations and be familiar with installation-related tools (rawrite, fips) sometimes used during multiple-boot installations.
Understand kickstart installation basics (kickstart file, floppy- vs. network-based, installation media, boot disk preparation, etc.).
Possess a thorough knowledge of the rpm command and its switches, particularly those related to the installation and querying of packages.
Be familiar with the basic elements of source (*.src.rpm) rpm packages.
Know how to boot into and use the rescue environment for system recovery.
Know how to create different kinds of user accounts.
Know how to configure the user environment.
Be familiar with system and user bash configuration files.
Understand quotas, quota concepts, and be able to implement user and group quotas.
Understand the cron system and be capable of setting up the scheduled jobs using cron.
Understand essential kernel concepts, such as monolithic vs. modular kernels, initial ramdisks, etc.
Be able to install kernel sources and development tools needed in order to rebuild the Linux kernel.
Be able to configure, build, and install the Linux kernel and modules from source, and Understand LILO and GRUB elements, boot sequence, and configuration.
Understand and be capable of implementing the following network services: Apache, Samba, NFS, basic sendmail, POP3/IMAP4 email, DNS, and ftp.
Be sufficiently familiar with the function, configuration, and logging of those services as to be capable of basic troubleshooting.
Be familiar with, and capable of, implementing access restrictions for the above services.
Be familiar with other network services supported under Red Hat Linux: squid, innd NNTP server, xntpd, etc.
Understand X in general and the XFree86 X server in particular, including its configuration file and the primary tools used for editing that file.
Be familiar with the window manager and desktop environment choices available under Red Hat Linux, and know how to select these choices.
Understand and be capable of implementing and using the remote capabilities of X, including remote logins and remote clients..
Understand the role of xinetd and be capable of implementing tcp_wrappers security measures.
Understand basic NIS concepts and the components associated with NIS.
Understand the purpose of the PAM subsystem, and be capable of implementing basic PAM configuration changes.
Possess basic familiarity with configuration issues -- routing options, IP forwarding, and kernel configuration -- associated with using Red Hat Linux as a router.
Be capable of using iptables to implement basic firewalling policies and be familiar with the User Private Group scheme in Red Hat Linux.
