RHEL 7 – new features for administrators

RHEL (Red Hat Enterprise Linux) is a Linux distribution targeted for the commercial market.

Upgrade to version 7

• Overview of the upgrade process from RHEL version 6.x to version 7
• Opportunities and limitations

Systemd

• About SysV vs. Upstart vs. system
• Introduction to Systemd
• Service management with systemctl
• Basic Concepts: Slices, Services, Targets
• About Targets vs. Runlevel, interdependencies between services
• Systemd and cgroups: resource restriction, CPU allocation, and remaining resources
• New logging capabilities for journald mechanism
• Detect and solve problems
   

Management System with new tools

• Tuned
• About Chrones vs NTP
• System Storage Manager (SSM)
• Mechanisms of data storage: LVM / dm_cache

BTRFS and Snapper

• Introduction to the BTRFS file system
• Redundancy and the ability to resize during system operation
• slave volumes and snapshots
• Manage snapshots using Snapper

Linux Container, Docker and Kubernetes

• Introduction to Linux-Container (LXC)
• Benefits and applications
• Comparison of technology: Docker, Rocket and LXD
• Installation, configuration and administration of the Docker mechanism
• Creating images and managing containers
• ​Kubernetes Container Management

Integration with windows

• Introduction to Samba 4 (S4) version 4.5
• New features of the S4 package
• About Samba 4 as an Active Directory domain controller
• Command Line Tools, RSAT
• About Samba 4 - integration with W2Kx systems - domain, replication, rules groups

SSSD and REALMD

• Installation and configuration
• Central authentication of user objects by SSSD
• Integration with Active Directory
• About SSSD - an overview of the possibilities
• About SSSD and realmd

News on high availability management mechanisms

• New clustering mechanisms - PCS (Pacemaker Configuration System)
• About Corosync 2.x / Pacemaker as CMAN replacement (/ Pacemaker)
• CRM and CIB, and other cluster resources: LSB, systemd, and OCF
• About Primates, Groups, Cloning Groups, and Multi-Resources
• Rules and limitations as components of the cluster configuration
• Cluster management with PCS and CRM-Shell
• Comparison of PCS and CRM-Shell
• Emergency Failover

Disk space management with Ceph

• Introduction to mechanisms: Software Defined Storage Clusters
• Cloud Storage Managed by Ceph
• Construction and operation
• About CEPH 10.x 'Jewel' - integration with systemd mechanism
• Ceph cluster configuration
• Overview of Ceph-RBD and CephFS
• Overview of operation mechanisms: Crushmaps, Storage Tiering /Erasure Coding