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