Course Overview

This course covers the major differences between RHEL 7 and RHEL 8. Major topics covered include: software management, networking and firewalls, storage, authentication, auditing, containers and virtualization.

CLASS INFORMATION
Price: 
$1,900
Duration: 
2 days
  • 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.

  • Module 1: SOFTWARE MANAGEMENT

      1. Composer
      2. DNF
      3. Application Streams

    Module 2: NETWORKING

    1. systemd replacements for: tcp_wrappers, Xinetd
    2. Nftables and iptables-translate
    3. Firewalld and nftables
    4. IPVLANs
    5. New TCP congestion algorithms (BBR and NV)
    6. NetworkManager and SR-IOV virtual functions
    7. Ntpd removed, chronyd only

    Module 3: STORAGE

    1. LUKS2 enhancements
    2. LUKS2 NBDE
    3. Stratis
    4. XFS Copy-on-Write
    5. * cp –reflink
    6. Btrfs, Lvmetad, Dmraid removal implications

    Module 4: SECURITY

    1. Openscap
    2. System-wide Cryptographic Policies
    3. Nftables
    4. nfsnobody, and nobody account changes
    5. SSSD and local /etc/{passwd,shadow}
    6. Auditd updated to v3, audispd removed

    Module 5: CONTAINER TECHNOLOGY OVERVIEW

    1. podman
    2. skopeo
    3. buildah

    Module 6: VIRTUALIZATION

    1. Cockpit
    2. virt-manager (deprecated)

    Module 7: CLUSTERING

    1. Updated pcs, corosync, pacemaker2
    2. Clvmd removed, replaced with lvmlockd

    Module 8: DESKTOP

    1. Wayland GUI server
    2. Xorg and VMs