HARTMANN software group

RED HAT ENTERPRISE LINUX SYSTEMS ADMINISTRATION III Training in Colorado Springs

Enroll in or hire us to teach our RED HAT ENTERPRISE LINUX SYSTEMS ADMINISTRATION III class in Colorado Springs, Colorado by calling us @303.377.6176. Like all HSG classes, RED HAT ENTERPRISE LINUX SYSTEMS ADMINISTRATION III may be offered either onsite or via instructor led virtual training. Consider looking at our public training schedule to see if it is scheduled: Public Training Classes
Provided there are enough attendees, RED HAT ENTERPRISE LINUX SYSTEMS ADMINISTRATION III may be taught at one of our local training facilities.
We offer private customized training for groups of 3 or more attendees.
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Course Description

  
This 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 RHCSA Exam Prep 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.
Course Length: 4 Days
Course Tuition: $1890 (US)

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

Course Outline

  
  1. 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
  2. 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
  3. MANAGE IPV6 NETWORKING
    1. IPv6
    LAB TASKS
    1. Configuring IPv6
  4. CONFIGURE LINK AGGREGATION AND BRIDGING
    1. Interface Aggregation
    2. Interface Bonding
    3. Network Teaming
    4. Interface Bridging
  5. 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
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. 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
  12. 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
  13. 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
  14. 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

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Linux Unix Uses & Stats

Linux Unix is Used For:
Desktop Mainframe Computers Mobile Devices Embedded Devices
Difficulty
Popularity
Year Created
1991/1971
Pros
Performance:
Linux supports many efficient tools and operates them seamlessly. Because it's architecture is lightweight it runs faster than both Windows 8.1 and 10. 
 
Security:
Because Linux is an open-source software,  anyone can contribute code to help enhance the users’ experience i.e., adding features, fixing bugs, reducing security risks, and more.
 
 
Software Development:
The terminal in Linux is a *wild card*. You can do almost anything with it. This includes software installation, application and server configurations, file system management, and etc.
 
Large-scale:
Open-source projects benefit from having an attentive community. As a result, Linux is more secure than Windows. Instead of installing anti viruses to clean malware, you just have to stick to the recommended repositories. 
 
Efficient: 
Developers have the convenience of running servers, training machine learning models, accessing remote machines, and compiling and running scripts from the same terminal window. 
 
Free: 
Linux is free (you can put it on as many systems as you like) and you can change it to suit your needs.
Cons
Learning Curve: 
Linux is not for everyone, there is a learning curve in switching to Ubuntu. To actually learn Linux efficiently would take a user one to several years.
 
No Tech Support:
Unlike Windows, there isn’t a dedicated tech support, so getting help for things is up to you. 
 
Designer Compatabilty:
Linux is not as user friendly as Windows or as ‘straight out of the box design’ As an example for design choices, Adobe hasn’t released any of its products to Linux users. So it’s impossible to run them directly. The Ubuntu alternative is a free software called GIMP. 
 
Gaming Capabilities: 
Most games aren’t available in Linux. But that’s not to say you can’t make it happen, it's just not as easy.   
Linux Unix Job Market
Average Salary
$85k-$105k
Job Count
n/a
Top Job Locations

New York City
Boston
San Francisco 
Complimentary Skills to have along with Linux Unix
The following are types of jobs that may require Linux skills.  The top 15 job titles on Dice.com that mention Linux in their postings are:
- DevOps Engineer
- Software Engineer
- Java Developer
- Systems Engineer
- Systems Administrator
- Senior Software Engineer
- Network Engineer
- Python Developer
- Linux Systems Administrator
- Software Developer
- System Administrator
- Linux Administrator
- Linux Engineer
- Senior Java Developer
- C++ Developer

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