Oracle Linux 7: Advanced Administration

This lesson provides an introduction to the course.

Lessons:

• Course Goals

• Lab:

• Schedule

• Logging in to your classroom PC

• Objectives

• Exploring the dom0 configuration and directory structure

• Working with Classroom Virtual Machines

• Starting, stopping, and listing VM guests

• Exploring the VM configurations

• Logging in to each VM guest

• Logging off from your classroom PC

This lesson describes how to configure networking and name services.

Lessons:

• Describe DHCP

• Describe and configure reverse name resolution

• Configure a DHCP server

• Use the rndc utility

• Start and stop a DHCP server

• Use the host and dig utilities

• Configure a DHCP client and request a lease

• Lab:

• Describe DNS

• Configuring a DHCP server

• Describe nameserver types

• Configuring a DHCP client

• Describe BIND

• Viewing and Testing the DNS configuration

• Configure a cache-only nameserver

• Configuring a caching-only nameserver

• Describe and configure zone files

This lesson describes the various techniques for verifying the identity of users.

Lessons:

• Describe authentication options

• Describe IPA Identity Management and Authentication Services

• Describe the Authentication Configuration Tool

• Describe SSSD services and domains

• Describe LDAP

• Lab:

• Describe OpenLDAP

• Configuring an OpenLDAP server

• Describe OpenLDAP server and client utilities

• Implementing OpenLDAP authentication

• Configure LDAP authentication

• Authenticating from an OpenLDAP client

• Configure Winbind authentication

• Configure Kerberos authentication

This describes how PAM can be used to define how applications identify users.

Lessons:

• Describe the purpose of PAM

• Walk through PAM authentication examples

• Describe PAM configuration files

• Lab:

• Describe PAM authentication modules

• Configuring PAM for a single login session

• Describe PAM module types

• Configuring PAM to prevent non-root login

• Describe PAM control flags

• Configuring PAM for a Single Login Session

This lesson describes how to configure web and email services.

Lessons:

• Describe the Apache HTTP Web Server

• Describe email protocols: SMTP, POP, IMAP

• Configure Apache directives

• Describe the Postfix SMTP server

• Configure Apache containers

• Describe the Sendmail SMTP server

• Configure Apache virtual hosts

• Configure Sendmail on a client system

• Describe email program classifications: MUA, MTA, MDA

• Lab:

• Configuring the Apache Web Server, Creating a test webpage, and Configuring two Apache virtual hosts

This describes how to use Kickstart to install Oracle Enterprise Linux 7.

Lessons:

• Describe the Kickstart installation method

• Boot into Rescue mode to correct boot problems

• Describe the Kickstart file

• Lab:

• Verify the Kickstart file

• Performing a Kickstart installation

• Start a Kickstart installation

• Using rescue mode to fix a boot problem

This lesson describes how to configure Samba services.

Lessons:

• Describe the purpose of Samba

• Access Samba shares from a client

• Describe Samba services and daemons

• Lab:

• Configure a Samba server

• Configuring a Samba server

• Describe Samba server types

• Accessing Samba shares from a Samba client host

• Accessing a Linux Samba share from a Windows system

This lesson describes advanced software package management features.

Lessons:

• Describe the contents of an RPM package

• Lab:

• Perform a binary RPM build

• Exploring the host04 VM

• Use the tools to perform package maintenance with Yum

• Managing Yum plug-ins

• Manage the Yum cache and Yum history

• Using Yum utilities to manage errata and to download software

• Install and use Yum plugins

• Creating a binary RPM package

• Describe and use the programs offered by PackageKit

• Managing software updates with PackageKit’s Software Update program

• Working with Yum history and Yum cache

This lesson describes the various techniques for implementing advanced storage configurations.

Lessons:

• Describe access control lists (ACLs)

• Lab:

• Describe and configure disk quotas

• Creating and mounting a file system

• Describe the Linux dmcrypt device driver

• Implementing access control lists

• Describe and configure encrypted block devices

• Setting disk quotas

• Describe the kpartx utility

• Encrypting a file system

• Describe Udev

• Using kpartx

• Create Udev rules

• Exploring and configuring Udev rules

• Use the udevadm utility

This lesson describes how to perform advanced network configurations such as VLANs and VPNs.

Lessons:

• Describe Network Bonding

• Lab:

• Configure Network Bonding

• Configuring Network Bonding by Using the GUI

• Describe Virtual Local Area Networks (VLANs)

• Configuring Network Bonding from the Command Line

• Configure a VLAN

• Working with Bonded Interfaces

• Describe Virtual Private Networks (VPNs)

• Configuring 802.1Q VLAN Tagging by Using the GUI

• Configure a Site-to-Site VPN

• Configuring 802.1Q VLAN Tagging from the Command Line

• Configuring a Site-to-Site VPN

• Working with VLAN Interfaces

This lesson describes the features and configuration of the Oracle Cluster File System.

Lessons:

• Describe the purpose and features of Oracle Cluster File System 2 (OCFS2)

• Provide an introduction to Oracle Clusterware

• Prepare for an OCFS2 configuration

• Lab:

• Install the OCFS2 software packages

• Preparing your environment for OCFS2 configuration

• Configure kernel settings for OCFS2

• Verifying that the required software is installed

• Configure the cluster layout

• Configuring the cluster layout

• Describe the OCFS2 heartbeat

• Configuring and starting the O2CB cluster stack

• Configure and start the O2CB cluster service

• Creating an OCFS2 volume

• Create and mount an OCFS2 volume

• Mounting an OCFS2 volume

• Use OCFS2 tuning and debugging utilities

• Tuning and debugging OCFS2

This lesson describes how to configure an iSCSI server on Oracle Enterprise Linux.

Lessons:

• Configure an iSCSI server

• Use the mpathconf and multipath utilities

• Use the targetcli administration shell

• Configure iSCSI multipathing

• Configure an iSCSI software initiator

• Lab:

• Use the iscsiadm utility

• Configuring an iSCSI server (target)

• Describe Device Mapper Multipathing

• Configuring an iSCSI client (initiator)

• Configuring iSCSI multipathing

This lesson describes the purpose, configuration and management of control groups.

Lessons:

• Describe the purpose of control groups

• Display system resource control settings

• Describe control group subsystems and parameters

• Control access to system resources

• Describe control group implementation in Oracle Linux 7

• Modify unit configuration files

• Describe the control group hierarchy model

• Use the systemd-run utility

• Describe systemd slice units and scope units

• Lab:

• Use the systemd-cgls utility

• Exploring cgroup integration into systemd

• Display the cgroup tree of specific services and scopes

• Exploring cgroup hierarchies and cgroup subsystem parameters

• Controlling access to system resources

This lesson describes how to enable and manage virtualization in Oracle Enterprise Linux.

Lessons:

• Describe virtualization and its benefits

• Lab:

• Explain how Linux as a virtual guest supports the different virtualization modes

• Preparing your virtualization host for KVM operations

• Outline the support for Linux as a guest operating system (OS) with various virtualization solutions

• Starting the Virtual Machine Manager

• Describe the KVM hypervisor

• Creating a virtual machine with an existing virtual disk

• Use the libvirt tools to create and manage KVM virtual guests

• Accessing the virtual machine’s console

• Adding paravirtualization to the virtual machine’s NIC operations

• Cloning the virtual machine’s disk

This lesson describes how to enable and configure Linux containers.

Lessons:

• Describe the purpose of Linux Containers

• Use additional Linux Container utilities

• Describe container configuration parameters

• Lab:

• Set up a system for Linux Containers

• Preparing your system to create a Linux Container

• Describe Linux Container template scripts

• Creating a Linux Container from a template

• Create a Linux Container by using the Oracle template script

• Exploring container configuration

• Use Linux Container utilities to start and stop a container

• Using lxc commands

This lesson describes the purpose, installation and configuration of Docker.

Lessons:

• Describe the purpose of Docker

• Create a Docker image from a Docker container or Dockerfile

• Describe the use of Docker images

• Save a Docker container or image for exporting

• Describe the Docker Hub Registry

• Load an exported Docker container or image

• Install and start Docker

• Describe Oracle WebLogic Docker Certification

• Search and download images from the Docker Hub Registry

• Lab:

• View Docker container logs and information about images

• Using sftp to upload Docker package and images

• Create, start, stop, and remove a Docker container

• Installing and configuring Docker

• Using the docker command-line interface

This lesson describes the features and usage of SELinux.

Lessons:

• Describe SELinux

• Describe SELinux file labeling, context, and users

• Describe SELinux packages

• Use SELinux utilities

• Use the SELinux Administration GUI

• Lab:

• Describe SELinux modes

• Exploring SELinux files and directories

• Describe SELinux policies

• Configuring SELinux Booleans

• Describe SELinux Booleans

• Configuring SELinux Context

This lesson describes the process of, and tools used in performing core dump analysis.

Lessons:

• Describe Kexec and Kdump

• Lab:

• Configure Kdump to capture kernel vmcore dump

• Configuring kdump

• Describe kernel parameters that can cause a panic

• Creating a core dump file

• Use magic SysRq keys

• Preparing your system to analyze the vmcore

• Use the crash utility for analyzing core dumps

• Using the crash utility to analyze the vmcore

This describes how to perform dynamic tracing by using DTrace.

Lessons:

• Describe the purpose of DTrace

• Create D scripts to explore your system

• Enable DTrace on Oracle Linux

• Lab:

• Describe and view DTrace providers and probes

• Installing DTrace packages

• Use the D programming language to enable probes and corresponding actions

• Enabling DTrace modules

• Use built-in D variables

• Using DTrace from the command line to list providers and probes

• Use built-in D functions

• Using DTrace from the command line to enable probes and actions

• Creating and running D scripts

This lesson describes the various Oracle Cloud solutions and how to configure access from within Oracle Enterprise Linux.

Lessons:

• Describe Infrastructure as a Service (IaaS)

• Describe Oracle Private Cloud Appliance

• Describe Oracle Compute Cloud Service

• Describe Oracle OpenStack for Oracle Linux

• Create an Oracle Linux Instance on the Cloud

• Describe Oracle-Provided Linux Images on the Cloud

• Create an Entire Virtualized Topology Using Orchestration JSONs