Red Hat System Administration II RHEL7

Course Description

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This course will present the commands and methods needed to setup and manage a RHEL 7 system. The course will also use a problem-solving approach in the lab exercises to teach system administrators advanced topics, for long-term management of the system. This course normally requires five (5) days, approximately 50% lecture, and 50% hands-on commands and lab exercises. If this class is being used as a preparation for the RHCSA examination, a practice exam will be part of the afternoon on the fifth day.

This course is the equivalent to Red Hat course 134 and is a continuation and companion to Red Hat course 124 and is the second preparation course for the RHCSA 7 certification examination.

Systems: Red Hat Enterprise Linux Version 7 (all update levels)

Audience Profile

IT professionals who have attended Red Hat System Administration I and want the skills to be full-time enterprise Linux administrators and/or earn RHCSA certifications

Prerequisites

It is assumed that the participant has successfully completed the Red Hat System Administration I (RH 124) course, or has equivalent system administration experience on a RHEL 7 server.

Learning Objectives

On completion of this course, a systems administrator should be able to install, update, and boot the RHEL 7 operating system; set up user accounts and directories; prepare queues for use; perform backups for integrity and performance reasons; monitor the system for performance and do basic setup of network software and capabilities.

Course Outline

Creating and Editing Text Files

• vim editor
  • key operations
  • contents of .vimrc
• vim editor variants (vimdiff, gvim)
• alternative editors (gedit, nano)

Scheduling Tasks and Operations

• batch job scheduling with at
• batch job scheduling with crontab operation
• scheduling with systemd timers logging

Regular Expressions

• definition
• usage with grep and sed

Controlling Processes

• running priority (nice values)
• processor affinity (taskset)

System Installation and Updating

• installation types and methods (review)
• installing the RHEL 7 operating system via kickstart

Startup and Shutdown

• controlling kernel operations via boot time arguments
• GRUB loader manipulation
  • alternative menu entries
  • Boot time troubleshooting
• shutdown methods

Managing of System Users and Files

• special permission codes access
• Control Lists (ACLs)
  • files directory (defaults)
• security through PAM password aging group
• level password controls connecting to an LDAP server

Commands to Manipulate

• Disks/Filesystems partitioning disk surfaces with fdisk and parted
• creating ext2/ext3/ext4/xfs file systems (mkfs)
• file system structures information (tune2fs, xfs_info)
• verifying file system structures (fsck, xfs_repair)
• making file systems available to software (mount)
• configuring swap space(s)

Logical Volume Management (LVM)

• physical volumes
• volume groups
• logical volumes
• resizing LVM based file systems
• LVM based swap space

Network Accessible Storage NFS

• basic server setup
• basic client setup
• Samba/CIFS
  • share setup
  • accessing shares (smbclient, mount)

Maintaining System and Network Integrity

• software firewall
  • firewalld
  • iptables
• SELinux basics
• Log file control (logrotate)