RH300 Red Hat Certified Engineer (RHCE)

Unit 1: Essentials

• Essential initial topics in system administration, including editors, switching accounts, adding users, using cron, and managing network connections

Unit 2: Kernel Services

• The Linux kernel: variants and modules

• The /proc filesystem and the sysctl command

• Accessing devices using udev

• Exploring hardware

Unit 3: Filesystem Management

• Creating filesystems

• Making filesystem mounts persistent across reboots

• Managing swap space

Unit 4: User Administration

• Modifying and deleting user accounts

• Password aging

• Group administration

• Creating group directories

• Setting disk quotas

Unit 5: Local Security

• Setting up a host-based firewall

• Using access control lists

• The SELinux security layer

• Managing suid and sgid executables

• Controlling access to superuser authority using sudo

Unit 6: Advanced Partitioning

• Understanding and implementing Software RAID

• Understanding Logical Volume Management

• Creating and resizing logical volumes

Unit 7: Installation

• The interactive Anaconda installer

• Kickstart: a hands-free method of installation

Unit 8: System Initialization

• Understanding the boot procedure

• Configuring the GRUB boot loader

• The Initial RAM Disk

• Understanding run levels

• Controlling services

Unit 9: RPM, YUM, RHN

• RPM: The Red Hat Package Manager

• The YUM installer

• Using the Red Hat Network

Unit 10: System Administration Topics

• Configuring the X Server

• The CUPS printing system

• cron and the superuser: the system-wide crontab file

• cron and system reboots: the anacron system

• Authentication Configuration: Pluggable Authentication Modules

Unit 11: Network Configuration

• Understanding network addresses

• Using OpenSSH for network communications

• Using VNC for network communications

• Network Authentication

Unit 12: Network Security

• Protecting services using TCP Wrappers

• Protecting the system using a packet filtering host-based firewall

Unit 13: Network File Sharing Services

• Setting up an NFS server

• Setting up an FTP server

• The Samba Server: networking with Windows systems

Unit 14: Network Infrastructure

• Creating a private repository

• NTP: Coordinating time

• Configuring a DHCP server

• Configuring a DNS server

Unit 15: HTTP Service

• Configuring the Apache web server

• Configuring the Squid web proxy cache

Unit 16: Mail Service

• Understanding e-mail delivery

• Using sendmail and postfix

• Dovecot: an IMAP and POP server

Unit 17: Troubleshooting

• A method for fault analysis

• Things to check

• Understanding recovery run levels

• Using the rescue environment