Description

This training will provide you with the essential knowledge to install and administer RHEL 7 on a daily basis. You will understand the major changes (GRUB2, SystemD, Firewalld, storage, resource management) and will be able to carry out the migration from RHEL 6 to RHEL 7.

Who is this training for ?

For whom ?

Administrators and systems engineers wishing to upgrade their knowledge of RHEL and integrate the new features of the Red Hat Enterprise Linux 7 distribution.

Prerequisites

Training objectives

Master the changes made by the Red Hat Enterprise Linux 7 distribution compared to previous versions

Install, configure and configure a RHEL 7 server with the new tools

Perform common administration tasks on RHEL 7

Understand the new GRUB2 boot system /SystemD

Update a Red Hat Linux 6 infrastructure to RHEL 7

Training program

• Introduction et installation
  • Overview of changes, new services, new tools.
  • Prerequisite, two-step installation.
  • A new approach to partitioning.
  • Installation of Red Hat Linux with Kickstart.
  • Practical work Install, configure Red Hat Linux.
• Getting started and services
  • Boot details, boot manager.
  • GRUB2, getting started and configuration.
  • Systemd: features and configuration.
  • Control Systemd services with systemctl.
  • Optimize startup with Systemd-analyze.
  • Snapshots, logs (journald, journalctl).
  • Practical work Analyze and optimize system startup.
• Core, memory, resources, performance
  • Dynamic Kernel patching: kpatch.
  • Swap compression.
  • Memory state.
  • The Performance Co-Pilot.
  • Resource management with control groups.
  • Practical work Monitoring process activity.
  • Monitor system load and server status .
• Storage and file systems
  • Changes in the tree: directory merges, use of /run, the private "/tmp".
  • File systems: Btrfs, Gfs2, ext4, Xfs .
  • XFS, features and administration.
  • LVM cache.
  • SCSI targets: from tgtd to LIO Kernel target.
  • Work practices Management of XFS filesystems.
• Network, high availability and security
  • Naming and configuring interfaces.
  • The ip command and the new configuration files.
  • Bonding, Teaming.
  • Load balancing and high availability with Keepalived.
  • Firewalld: administer the firewall, zones, services, ports with firewall-cmd.
  • SSH: chroot and multiple authentication.
  • Fail2ban and ipsets.
  • Practical work Using the ip command.
  • Implementing Fail2ban and handling the firewall with Firewalld.
• Virtualisation
  • Introduction to containers and Docker.
  • Evolutions of libvirt.
  • New features concerning KVM.
  • Practical work Deployment of a Docker container.
• Migration: from RHEL 6 to RHEL 7
  • Migration procedure, postmigration.
  • Support and lifecycle.
  • RedHat and CentOS: merger/absorption.