HARTMANN software group

RED HAT ENTERPRISE LINUX V7 DIFFERENCES Training in Huntsville

Enroll in or hire us to teach our RED HAT ENTERPRISE LINUX V7 DIFFERENCES class in Huntsville, Alabama by calling us @303.377.6176. Like all HSG classes, RED HAT ENTERPRISE LINUX V7 DIFFERENCES 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 V7 DIFFERENCES 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 is a differences course that focuses on the new technologies and features that made their appearance in Red Hat Enterprise Linux v7. It is intended for system administrators and developers who are comfortable with RHEL6 and wish to update their skills on the new topics. The notable new features covered in this course include the new system and service manager Systemd, the GRUB2 boot manager, new Dracut the reworked and standardized /etc configuration files, UDEV changes, storage enhancements such as Automated Storage Tiering, Thin Provisioning, Device Mapper dm-raid target, and the XFS filesystem. Other new networking features are covered such as the systemd-udev NIC naming scheme, nmcli, and the new Network Teaming system. Additional new management and monitoring tools are covered such as the new polkit javascript authorization system, the new cgroups architecture, FirewallD and the systemd journal, and new advanced input and output modules for rsyslog. Finally, an overview of the Linux container ecosystem and an excellent introduction to Docker is included in this course.
Course Length: 3 Days
Course Tuition: $1690 (US)

Prerequisites
This course requires an advanced knowledge of Red Hat Enterprise Linux System Administration v6 or earlier. These skills are taught in the "Enterprise Linux Systems Administration" and "Linux Fundamentals" courses.

Course Outline

  
  1. SYSTEMD OVERVIEW
    1. System Boot Method Overview
    2. systemd System and Service Manager
    3. Modifying systemd services
    4. Systemd Service Sandboxing Features
    5. systemd Targets
    6. Using systemd
    7. Linux Runlevels Aliases
    8. Legacy Support for SysV init
    LAB TASKS
    1. Managing Services With Systemd's systemctl
    2. Creating a systemd unit file
    3. Introduction to Troubleshooting Labs
  2. GRUB2/SYSTEMD BOOT PROCESS
    1. Booting Linux on PCs
    2. GRUB 2
    3. GRUB 2 Configuration
    4. GRUB 2 Security
    5. Boot Parameters
    6. Initial RAM Filesystem
    7. init
    8. Systemd local-fs.target and sysinit.target
    9. Systemd basic.target and multi-user.target
    10. Legacy local bootup script support
    11. System Configuration Files
    12. RHEL7 Configuration Utilities
    13. Shutdown and Reboot
    LAB TASKS
    1. Boot Process
    2. Booting directly to a bash shell
    3. GRUB Command Line
    4. Basic GRUB Security
    5. Troubleshooting Practice: Boot Process
  3. LINUX KERNEL & DEVICES
    1. udev
    2. SCSI Devices
    3. USB Architecture
    4. Kernel Modules
    5. Configuring the Kernel via /proc/
    6. Console
    7. Virtual Terminals
    8. Keyboard & locale configuration
    9. Random Numbers and /dev/random
    10. Virtual Machine Guest Tools & Drivers
    11. Virtual Machine Serial Console
    LAB TASKS
    1. Adjusting Kernel Options
    2. Troubleshooting Practice: Kernel Modules
  4. LOCAL STORAGE ADMINISTRATION
    1. Partitioning Disks with fdisk & gdisk
    2. Resizing a GPT Partition with gdisk
    3. Partitioning Disks with parted
    4. Non-Interactive Disk Partitioning with sfdisk
    5. Filesystem Creation
    6. Persistent Block Devices
    7. Mounting Filesystems
    8. Resizing Filesystems
    9. Filesystem Maintenance
    10. Managing an XFS Filesystem
    11. Swap
    12. Configuring Disk Quotas
    13. Setting Quotas
    14. Viewing and Monitoring Quotas
    LAB TASKS
    1. Creating and Managing Filesystems
    2. Setting User Quotas
  5. LVM
    1. Logical Volume Management
    2. Implementing LVM
    3. Creating Logical Volumes
    4. Activating LVM VGs
    5. Exporting and Importing a VG
    6. Examining LVM Components
    7. Changing LVM Components
    8. Advanced LVM Overview
    9. Advanced LVM: Components & Object Tags
    10. Advanced LVM: Automated Storage Tiering
    11. Advanced LVM: Thin Provisioning
    12. Advanced LVM: Striping & Mirroring
    13. Advanced LVM: RAID Volumes
    LAB TASKS
    1. Creating and Managing LVM Volumes
    2. Troubleshooting Practice: LVM
  6. BASIC NETWORKING
    1. Linux Network Interfaces
    2. Ethernet Hardware Tools
    3. Network Configuration with ip Command
    4. Configuring Routing Tables
    5. Starting and Stopping Interfaces
    6. NetworkManager
    7. Hardware and System Clock
    LAB TASKS
    1. Network Discovery
    2. Basic Client Networking
  7. ADVANCED NETWORKING
    1. Multiple IP Addresses
    2. Interface Aggregation
    3. Interface Bonding
    4. Network Teaming
    LAB TASKS
    1. Multiple IP Addresses Per Network Interface
    2. Troubleshooting Practice: Networking
  8. LOG FILE ADMINISTRATION
    1. System Logging
    2. systemd Journal
    3. systemd Journal's journalctl
    4. Secure Logging with Journal's Log Sealing
    5. gnome-system-log
    6. Rsyslog
    7. /etc/rsyslog.conf
    LAB TASKS
    1. Using the systemd Journal
    2. Setting up a Full Debug Logfile
    3. Remote Syslog Configuration
    4. Remote Rsyslog TLS Configuration
  9. OTHER RHEL7 CHANGES
    1. Determining Service to Process Mapping
    2. Real-time Monitoring of Resources — Cgroups
    3. RHEL7 Rescue Environment
    4. File Sharing via NFS
    5. NFSv4+
    6. SAN Multipathing
    7. Multipath Configuration
    8. Multipathing Best Practices
    9. Approaches to Storing User Accounts
    10. Controlling Login Sessions
    11. PAM Module Types
    12. PAM Order of Processing
    13. Fine Grained Authorizations with Polkit
    14. FirewallD
    15. iSCSI Target Implementations
    16. iSCSI Target Node Preparation & targetcli
    17. iSCSI Target Administration
    18. iSCSI Target Defining Storage Objects
    19. iSCSI Target LUN Administration
    20. iSCSI Target Network Portal Configuration
    21. iSCSI Target Security
    22. iSCSI Target Examples
    LAB TASKS
    1. Recovering Damaged MBR
    2. Cgroup for Processes
    3. NFS Server Configuration
    4. iSCSI Initiator Configuration
    5. Multipathing with iSCSI
  10. CONTAINER TECHNOLOGY OVERVIEW
    1. Application Management Landscape
    2. Application Isolation
    3. Resource Measurement and Control
    4. Container Security
    5. Container Security
    6. Open Container Initiative
    7. Docker Ecosystem
    8. Docker Ecosystem (cont.)
    LAB TASKS
    1. Container Concepts runC
    2. Container Concepts Systemd
  11. DOCKER FUNDAMENTALS
    1. Installing Docker
    2. Docker Architecture
    3. Starting the Docker Daemon
    4. Docker Daemon Configuration
    5. Docker Control Socket
    6. Creating a New Container
    7. Listing Containers
    8. Viewing Container Operational Details
    9. Running Commands in an Existing Container
    10. Interacting with a Running Container
    11. Stopping, Starting, and Removing Containers
    12. Copying files in/out of Containers
    13. Inspecting and Updating Containers
    LAB TASKS
    1. Installing Docker
    2. Managing Containers
    3. Configure a docker container to start at boot.
  1. PRE-INSTALLATION CONSIDERATIONS
    1. Pre-Installation Considerations
    2. Hardware Compatibility
    3. Multi-OS Booting
    4. Partition Considerations
    5. Filesystem Planning
    6. Selecting a Filesystem
  2. INSTALLING RHEL7
    1. Anaconda: An Overview
    2. Anaconda: Booting the System
    3. Anaconda: Common Boot Options
    4. Anaconda: Loading Anaconda and Packages
    5. Anaconda: Storage Options
    6. Anaconda: Troubleshooting
    7. FirstBoot
    8. Kickstart
    9. Network Booting with PXE
    10. A Typical Install
    LAB TASKS
    1. Linux Installation
    2. Automating Installation with Kickstart

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Linux Uses & Stats

Linux 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 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
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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