RHSCA Exam Objectives (for the United Kingdom)

Candidates should be able to do the following:

• Boot, reboot, and shutdown the system normally
• Shutting Down
• Diagnose and correct problems at boot
• Basic System Recovery
• Boot systems into different runlevels for troubleshooting and system maintenance
•  SysV Init Runlevels
• Changing Runlevels at Boot Time
  
• Use single-user mode to gain access to a system for which the root password is not known
• Forgotten root Password
• Diagnose and correct misconfigured networking settings
• Simple Network Troubleshooting
• Diagnose and correct hostname resolution problems
• Where do I set the local hostname and domain name of my machine?
• List of LINUX troubleshooting commands/tools
• Diagnose and address permissions problems and SELinux policy violations
• Troubleshooting SELinux
  
• Diagnose and correct non-hardware disk storage problems
• 
  
• Adding new partitions, logical volumes, filesystems, and swap areas to a system non-destructively
• Adding, Removing and Moving Swap Space
• Manually open, mount, unmount, and close LUKS-encrypted filesystems
• System Encryption with LUKS for dm-crypt
• Extend existing unencrypted ext4-formatted logical volumes
• Resizing an Ext4 File System
• Login or switch user to the root account
• How do I allow a normal user to run commands as root and how to use the sudo command?
• How do I restrict the use of su command?
• How do I use the su command?
• What is the difference between "su -" and "su" ?
• Why should one use su and not login as root?
• Use ssh and VNC to access remote systems
• How do I tunnel VNC connections over SSH
• How to configure Virtual Network Computing (VNC) to work with Red Hat Enterprise Linux ?
• Locate and read on-line documentation using man, info, and files in /usr/share/doc
• Locating Files and Directories
• Locate and analyze system log files
• Log Files
• Understand how to use grep and regular expressions to analyze text output
• Access a bash shell prompt and issue commands with correct syntax; use pipelines and I/O redirection
• Use text editors such as gedit and vim to create and edit text files
• Manage system resources: identify CPU/memory intensive processes, adjust process priority with renice, kill processes
• Monitoring CPU Utilization on Red Hat Enterprise Linux
• How do I kill a remote login session without killing process started inside it?
• How can I kill a process from the command line if a program is hung or not responding?
• Is there a way to kill a zombie process or process in the "D" state with the parent ID of 1 without a reboot?
• Resource Monitoring
• Gathering System Information
• How can I change the default logging interval for the "sar" monitoring utility?
• Manage files and directories: create/delete/copy/move; create hard and soft links
• 6 mv Command Examples to Move or Rename Linux File and Directory
• How do I create a symlink to a file?
• The Ultimate Linux Soft and Hard Link Guide (10 Ln Command Examples)
• Use tar, gzip, and bzip2 to archive and compress files
• Archiving Files with tar
• How do I compress a file with bzip2 so it takes up less space?
• Archiving File Systems With ACLs
• File Compression and Archiving
• How do I read gzip compressed text files?
• Install Red Hat Enterprise Linux manually with the graphical installer from network installation media
• Install Red Hat Enterprise Linux automatically using Kickstart
• Kickstart
• Configure a physical machine as a RHEL-based virtualization host
• Installing the virtualization packages
• Manage virtual machines: install/start/stop/configure to start at boot/access a VM´s graphical console
• Automatically starting guests
• Managing guests with virsh
• Installing Red Hat Enterprise Linux 6 as a virtualized guest
• Installing Red Hat Enterprise Linux 6 as a para-virtualized guest on Red Hat Enterprise Linux 5
• Virtual Machine graphical console
• Manage disk partitions: understand MBR-style partitions (primary,extended,logical); list/create/delete partitions
• Partitions
• Manage logical volumes: create/remove physical volumes, assign PVs to volume groups, create/delete logical volumes
• Understanding LVM
• LVM (Logical Volume Manager)
• Logical Volume Manager Administration
• Logical volume management
• Create and configure LUKS-encrypted partitions and logical volumes to prompt for password and mount decrypted filesystem at boot
• Disk Encryption
• Creating Encrypted Block Devices in Anaconda
• Creating Encrypted Block Devices on the Installed System After Installation
• Disk Encryption Common Post-Installation Tasks
• Mounting a File System as Encrypted
• Manage ext4 filesystems: create, label, mount, mount automatically at boot (by UUID or label), unmount
• Ext4 File System
• Mounting an Ext4 File System
• How To Use UUID To Mount Partitions and Volumes
• Is It Time to Migrate Your File Systems to Ext4?
• Mount and unmount CIFS and NFS network filesystems, manually or by configuring autofs
• Network File System (NFS)
• Connecting to a Samba Share
• Manage network devices: understand basic IP networking/routing, configure IP addresses/default route statically or dynamically
• Interface Configuration Files
• Configuring Static Routes
• How to create persistent network routes on Red Hat Enterprise Linux?
• How do I add or delete static routes from the Red Hat Enterprise Linux IP routing table?
• Manage name resolution: set local hostname, configure /etc/hosts, configure to use existing DNS server
• Setting the Hostname
• Network Configuration Files
• Manage network services: check status, start, stop, configure to start automatically at boot
• Using the chkconfig Utility
• Using the Service Configuration Utility
• Controlling Access to Services
• How do I find out what network services are running or listing under Linux?
• Red Hat / CentOS: Check / List Running Services
• Running the Services
• Configure the scheduling of tasks using cron and at
• Automated Tasks
• Manage local user and group accounts: create, delete, change passwords, adjust password aging, adjust group memberships
• Users and Groups
• User and Group Management Tools
• Use network user and group accounts stored on an existing LDAP directory service
• Authentication Configuration
• Manage standard permissions: list, interpret, change ugo/rwx
• User Accounts, Groups, and Permissions
• Use sgid directories for collaboration
• User Accounts, Groups, and Permissions
• Set and manage Access Control Lists (ACLs)
• Access Control Lists
• How do I implement Access Controls Lists (ACLs) in Red Hat Enterprise Linux?
• Manage SELinux security: set enforcing/permissive modes, list file and process context, restore default file context, use "booleans" to adjust policy
• How to Disable SELinux
  
• Relabeling a File System
• Labeling Problems
• What Happens when Access is Denied
• SELinux Packages and Commands
• The UnOfficial SELinux FAQ
• Manage default firewall settings with basic tools
• Security Guide - Firewalls
  
• Install and update software packages from RHN or remote repository, or from the local filesystem
• Package Management with RPM
• Red Hat Network
• Update the kernel package appropriately to ensure a bootable system
• Manually Upgrading the Kernel
• Modify the system bootloader
• Verifying the Boot Loader
• Configure the system to synchronize system time using remote NTP servers
• Network Time Protocol Setup
• Deploy a VNC server that allows multiple desktops to be shared
• How do I configure Virtual Network Computing (VNC) to work with Red Hat Enterprise Linux ?
• /etc/sysconfig/vncservers
• Deploy file sharing services with HTTP/FTP
• Deploying Apache HTTP Server
• Managing Apache HTTP Server
• Securing the Apache HTTP Server
• Deploying an FTP Server
• Managing File Transfer Protocol
• Securing FTP

Additional References

• RHEL Product Documentation
• Red Hat Customer Portal Search
• RHEL6 Deployment Guide
• RHEL6 Installation Guide
• RHEL6 Security-Enhanced Linux
• RHEL6 Security Guide
• RHEL6 Storage Administration Guide
• RHEL6 Virtual Server Administration
• RHEL6 Virtualization Guide
• RHEL4 Introduction To System Administration
• RHEL4 System Administration Guide