Questions and Answers
What are some of the Red Hat Enterprise Linux products mentioned in the content?
What is the default shell mentioned for working on the command line?
Bash
SELinux stands for Security-Enhanced Linux.
True
Who is the author of the book 'Red Hat Enterprise Linux 6 Administration: Real World Skills for Red Hat Administrators'?
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Which company specializes in Linux high availability and performance, as mentioned in the content?
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The author of the book enjoys outdoor sports activities like running, hiking, kayaking, and ice-skating.
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What is the number-one Linux vendor on the planet?
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Which chapter covers 'Introducing Bash Shell Scripting'?
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Red Hat is known for having high availability clustering solutions.
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What is the primary purpose of SELinux context types?
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Which tool can be used to set up SELinux on Red Hat?
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Firewalls can be set up using both system-config-firewall and iptables.
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Setting up a DNS server involves configuring ______-only name server, primary name server, and secondary name server.
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Match the following protocols with their functions:
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Who is the target audience of the book?
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What certifications does Red Hat offer that are relevant for system administrators?
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To work with this book, you need a dedicated computer on which you can install Red Hat Enterprise Linux. If not feasible, a __________ machine can be used as an alternative.
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Match the following chapters with their contents:
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What is the goal of the GNU operating system project?
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Linux was developed as part of the GNU project.
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What is the significance of the GNU General Public License (GPL) in relation to the Linux kernel?
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Red Hat was the first Linux distributor to operate as a ____________.
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What is Fedora primarily used for?
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Which product serves as the basis for Red Hat offerings?
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Customers can download a free version of Red Hat Enterprise Linux for permanent access to Red Hat Network.
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Red Hat Enterprise Linux Server releases major updates every __ to __ years.
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Match the Red Hat products with their descriptions:
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Study Notes
Introduction to Red Hat Enterprise Linux
- Red Hat Enterprise Linux is an open-source operating system
- Origins of Linux date back to 1991 when Linus Torvalds created the first version
- Linux distributions include Fedora, Red Hat Enterprise Linux, and others
- Red Hat Enterprise Linux Server Edition, Workstation Edition, and Add-Ons are related products
- Red Hat Directory Server, Enterprise Virtualization, JBoss Enterprise Middleware, and Cloud are other products in the Red Hat family
Getting Started with Red Hat Enterprise Linux
- Installing Red Hat Enterprise Linux Server
- Exploring the GNOME user interface
- Applications Menu
- Places Menu
- System Menu
- Getting familiar with the command line
- Working with the Bash shell
- Using Bash key sequences
- Bash history and piping
Finding Your Way on the Command Line
- Working with files and directories
- Piping and redirection
- Finding files and using editors (Vi modes, saving, quitting, cut, copy, paste, deleting, and replacing text)
- Getting help using
man,--help, and other commands
Administering Red Hat Enterprise Linux
- Performing daily system administration tasks
- Job management
- System and process monitoring and management
- Scheduling jobs
- Mounting devices
- Working with links
- Creating backups
- Managing printers
- Setting up system logging (Rsyslog and Logrotate)
Managing Software
- Understanding RPM (Red Hat Package Manager)
- Understanding meta package handlers and repositories
- Installing software with Yum
- Querying software
- Extracting files from RPM packages
Configuring and Managing Storage
- Understanding partitions and logical volumes
- Creating partitions and file systems
- Mounting file systems automatically through fstab
- Working with logical volumes (creating, resizing, and snapshots)
- Replacing failing storage devices
- Creating swap space
- Working with encrypted volumes
Connecting to the Network
- Understanding NetworkManager
- Configuring the network with NetworkManager
- Working with services and runlevels
- Configuring networking from the command line
- Troubleshooting networking
- Setting up IPv6
- Configuring SSH (enabling, using, and key-based authentication)
- Configuring VNC server access
Securing Red Hat Enterprise Linux
- Working with users, groups, and permissions
- Managing users and groups
- Understanding user and group configuration files
- Creating groups and managing passwords
- Using graphical tools for user and group management
- Using external authentication sources
- Understanding the authentication process
- Managing permissions (ownership, basic, and advanced permissions)
Understanding and Configuring SELinux
- Understanding SELinux
- What is SELinux?
- Configuring SELinux
- Understanding SELinux context
- Working with SELinux booleans
- Troubleshooting SELinux issues### Book Information
- Title: Red Hat Enterprise Linux 6 Administration: Real World Skills for Red Hat Administrators
- Author: Sander van Vugt
- Publisher: John Wiley & Sons, Inc.
- Copyright: 2013
- ISBN: 978-1-118-30129-6 (hardcover), 978-1-118-62045-8 (ebk.), 978-1-118-42143-7 (ebk.), 978-1-118-57091-3 (ebk.)
- Library of Congress Control Number: 2012954397
Author Background
- Sander van Vugt is an author of more than 50 technical books
- Most of his books are in Dutch
- He is a technical instructor who works directly for major Linux vendors, such as Red Hat and SUSE
- He specializes in high availability and performance issues in Linux
- He has experience in securing servers with SELinux, especially on platforms that don't support it natively
- He has applied his skills in helping many companies all over the world who are using Linux
Book Acknowledgments
- The book was made possible with the help of a team of professionals at Sybex
- Gary Schwartz was the developmental editor
- Floris Meester and Erno de Korte were the technical editors
- Rebecca Anderson was the production editor
- Jeff Kellum was the acquisitions editor### Understanding Linux
- Red Hat is the number-one Linux vendor on the planet
- The book covers Linux installation, configuration, and troubleshooting
- Exercises and hands-on labs are provided to practice Linux skills
Inactive Memory and Kernel Memory
- Inactive memory and kernel memory need to be monitored for optimal system performance
-
pscommand can be used for analyzing memory
Monitoring Storage Performance
- Understanding disk activity is crucial for optimizing storage performance
- Tools like
iotopandhdparmcan be used to monitor and set drive activity
Optimizing Performance
- Simple performance optimization tests can be performed
- CPU tuning, memory tuning, and optimizing interprocess communication can be done for better performance
- cgroups can be used to optimize Linux performance
Introducing Bash Shell Scripting
- Bash shell scripting is a powerful tool for automation
- Elements of a good shell script include variables, input, and control structures
- Variables, subshells, and sourcing are important concepts in bash scripting
- Pattern matching and substitution operators are used for text manipulation
Understanding and Troubleshooting the Boot Procedure
- Boot procedure can be configured with GRUB
- GRUB configuration file can be edited for custom boot options
- Common kernel management tasks include analyzing kernel modules and upgrading the kernel
- Upstart is used for service startup configuration
High-Availability Clustering
- High-availability clustering is important for mission-critical systems
- Red Hat High-Availability Add-on provides clustering software components
- Cluster-based services can be configured for bonding, shared storage, and fencing
Setting Up an Installation Server
- An installation server can be configured for network installations
- TFTP and DHCP servers are required for PXE boot
- Kickstart files can be used for automated installations
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Description
This quiz assesses real-world skills for Red Hat administrators, covering administration tasks and concepts in Red Hat Enterprise Linux 6. It's designed for Linux professionals who want to test their knowledge and skills in managing Red Hat Enterprise Linux systems.
