Red Hat RHCSA Rapid Track Course RHEL7

Overview

Course Description

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This course presents the working environment of a RHEL7 system. It introduces commonly required operations that can be performed by entering commands interactively in a command terminal, along with functions available in the GNOME Desktop Environment. This course will concentrate on Red Hat Enterprise Linux (RHEL), version 7 (all update levels).

This course is the equivalent of Red Hat course 199, to prepare for the RHCSA 7 examination.

Audience Profile

Practiced Linux system administrators who currently manage Linux servers at the enterprise level – Skilled Linux system administrators who want or are required to demonstrate competencies by earning the RHCSA

Prerequisites

This course is a concentrated preparation for the RHCSA 7 examination.

Participants are assumed to be (Red Hat Enterprise) Linux system administrators working on production level configurations and have used and demonstrated competencies in Linux fundamentals and entry-level administrative functions.

Learning Objectives

Each participant will be able to use RHEL 7 Bash Shell techniques and commands to maintain collections of files, create files using interactive editor utilities, create and execute basic command procedures, communicate with other users, and tailor the interactive environment to meet their needs. Major administrative features to set up and control a functioning RHEL 7 system will also be shown.

Course Outline

Course Outline

Accessing the Command Line

graphical login
non-graphical login
Unix / Linux standards BASH command line format RHEL 7 help information
command line operations – remote host – ssh
using the root account

Managing Files from the Command Line

system directories hierarchy file manipulation commands file characteristics information defining and using hard links
defining and using symbolic links
standard input, output, error, and pipelines
vim editor
tar, gzip, gunzip utilities remote file operations – ssh regular expression

Monitoring and Managing Linux Processes

user working environment process
information adjusting process priority
process monitoring tools

Scheduling System Tasks

submitting a batch job with at
submitting a batch job with crontab crontab
file entry layout uses of crontab entries periodic processing via crond
periodic processing via a systemd timer

Control Access to Files with Linux File System Permissions

standard file permissions
special file attributes (SUID, SGID, STICKY)
special directory attributes (SGID, STICKY)
Access Control Lists (ACLs)

Installing and Updating Software Packages

7 software packages rpm command usage
yum command usage
yum repository setup
Apache web server configuration building a kickstart file
initiating Installation via a kickstart file

Controlling Services and Daemons

RHEL 7 startup sequence
Grand Unified Boot Loader (GRUB)
Grand Unified Boot Loader (GRUB)
components Grand Unified Boot Loader (GRUB)
variables Grand Unified Boot Loader (GRUB) –
menuentries RHEL 7 reset forgotten root password
systemd target files
systemd services
systemd actions boot logging
systemd journal logging shutdown

Analyzing and Storing Logs

system logging mechanism
kernel message logging system
logging configuration

Managing RHEL 7 Networking

network configuration
host configuration
gateway configuration
maintaining system time via an ntp server
maintaining system time via chrony
time zone manipulation

Mounting Network File Systems

setting up the Network File System starting up the Network File System using the Network File System automounter
direct / indirect maps Samba / CIFS
system software Samba / CIFS usage

Limiting Network Communication with firewalld