GL254 - Red Hat Enterprise Linux Systems Administration III

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This GL254 course is designed to follow an identical set of topics as the Red Hat® RH254, RH255 RHCE exam prep courses with the added benefit of very comprehensive lab exercises and detailed lecture material.

The Red Hat Enterprise Linux (RHEL) system administration topics covered in this course along with the GL199 course cover the certification objects of the Red Hat Certified Engineer (RHCE) exam.

This course builds upon a foundation of core Linux systems administration principles and skills. Students will advance their Linux systems administration knowledge. The course will focus on helping students optimize system administration skills using automation techniques and deploy commonly used network services. Once this course is completed students will know how to deploy critical network services in a secure fashion.

Current Version: C02

Red Hat® is a registered trademark of Red Hat, Inc. and its use by Guru Labs, L.C. does not imply association or sponsorship by Red Hat, Inc.

Prerequisites:

Students should have skill equal to those taught in the GL124 "Red Hat Enterprise Linux Systems Admin I" and GL134 "Red Hat Enterprise Linux Systems Admin I" courses. Also these prerequisite skills are taught in the GL120 "Linux Fundamentals" and GL250 "Enterprise Linux Systems Administration" courses.

Supported Distributions:

Red Hat Enterprise Linux 7

Recommended Class Length:

4 days

Detailed Course Outline:

Linux Kernel & Devices
1. Hardware Discovery Tools
2. Kernel Hardware Info – /sys/
3. /sys/ Structure
4. udev
5. Managing Linux Device Files
6. List Block Devices
7. SCSI Devices
8. USB Devices
9. USB Architecture
10. Kernel Modules
11. Configuring Kernel Components and Modules
12. Handling Module Dependencies
13. Configuring the Kernel via /proc/
14. Console
15. Virtual Terminals
16. Keyboard & locale configuration
17. Serial Ports
18. Random Numbers and /dev/random
Lab Tasks
1. Adjusting Kernel Options
2. Introduction to Troubleshooting Labs
3. Troubleshooting Practice: Kernel Modules
Control Services and Daemons
1. systemd System and Service Manager
2. Modifying systemd services
3. Systemd Service Sandboxing Features
4. systemd Targets
5. Using systemd
6. Legacy Support for SysV init
Lab Tasks
1. Managing Services With Systemd's systemctl
2. Creating a systemd unit file
3. Troubleshooting Practice: Boot Process
Manage IPv6 Networking
1. IPv6
Lab Tasks
1. Configuring IPv6
Configure Link Aggregation and Bridging
1. Interface Aggregation
2. Interface Bonding
3. Network Teaming
4. Interface Bridging
Control Network Port Security
1. SELinux Security Framework
2. SELinux Modes
3. SELinux Commands
4. Choosing an SELinux Policy
5. SELinux Booleans
6. Permissive Domains
7. SELinux Policy Tools
8. FirewallD
Lab Tasks
1. Firewall Configuration
2. FirewallD
Manage DNS for Servers
1. Server Roles
2. Resolving Names
3. Resolving IP Addresses
4. Basic BIND Administration
5. Configuring the Resolver
6. Testing Resolution
7. BIND Configuration Files
8. named.conf Syntax
9. named.conf Options Block
10. Creating a Site-Wide Cache
11. rndc Key Configuration
12. Address Match Lists & ACLs
13. Restricting Queries
Lab Tasks
1. Configuring a Slave Name Server
2. Use rndc to Control named
Configure Email Delivery
1. SMTP
2. SMTP Terminology
3. SMTP Architecture
4. SMTP Commands
5. SMTP Extensions
6. SMTP Session
7. Postfix Features
8. Postfix Architecture
9. Postfix Components
10. Postfix Configuration
11. master.cf
12. main.cf
13. Configuration Commands
Lab Tasks
1. Configuring Postfix
2. Postfix Virtual Host Configuration
3. Postfix Network Configuration
Provide Block-based Storage
1. Remote Storage Overview
2. Remote Block Device Protocols
3. iSCSI Architecture
4. Open-iSCSI Initiator Implementation
5. iSCSI Initiator Discovery
6. iSCSI Initiator Node Administration
7. Mounting iSCSI Targets at Boot
8. iSCSI Multipathing Considerations
Lab Tasks
1. iSCSI Initiator Configuration
Provide File-based Storage
1. Remote Filesystem Protocols
2. File Sharing via NFS
3. NFSv4+
4. NFS Clients
5. NFS Server Configuration
6. Implementing NFSv4
7. Accessing Windows/Samba Shares from Linux
Lab Tasks
1. NFS Server Configuration
Configure MariaDB Databases
1. Popular SQL Databases
2. MariaDB
3. MariaDB Installation and Security
4. MariaDB User Account Management
Lab Tasks
1. Installing and Securing MariaDB
Provide Apache HTTPD Web Services
1. HTTP Operation
2. Apache Architecture
3. Apache Configuration Files
4. httpd.conf – Server Settings
5. httpd.conf – Main Configuration
6. HTTP Virtual Servers
7. Virtual Hosting DNS Implications
8. httpd.conf – VirtualHost Configuration
9. Port and IP based Virtual Hosts
10. Name-based Virtual Host
11. TLS Using mod_ssl.so
12. Dynamic HTTP Content
Lab Tasks
1. Apache Architecture
2. Apache Content
3. Configuring Virtual Hosts
4. Using TLS Certificates with Apache
5. CGI Scripts in Apache
Write Bash Scripts
1. Shell Script Strengths and Weaknesses
2. Example Shell Script
3. Positional Parameters
4. Input & Output
5. Comparisons with test
6. Exit Status
7. Conditional Statements
8. Flow Control: case
9. The borne for-Loop
10. The while and until Loops
Lab Tasks
1. Writing a Shell Script
Configure the Shell Environment
1. Shells
2. Identifying the Shell
3. Changing the Shell
4. Configuration Files
5. Script Execution
6. Shell Prompts
7. Bash: Bourne-Again Shell
8. Bash: Configuration Files
9. Bash: Command Line History
10. Bash: Command Editing
11. Bash: Command Completion
12. Bash: prompt
Lab Tasks
1. Linux Shells
2. Bash History
3. Aliases
4. Bash Login Scripts
Linux Containers Preview
1. Application Management Landscape
2. Application Isolation
3. Resource Measurement and Control
4. Open Container Initiative
Lab Tasks
1. Container Concepts runC
2. Container Concepts Systemd

GL254 - Red Hat Enterprise Linux Systems Administration III

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