Complete Red Hat System Administration Boot Camp – RHCSA 8

Linux Essentials

The Directory Tree

Root Directory and Hierarchy of Users in Linux

Absolute and Relative Paths – Command Options and Arguments

pwd command and cd command

ls command

cal command, date command, uptime command

lscpu command and free command

df command and du command

history command, clear command, exit command

whatis command, type command, man command

last command snd w command

hostname command and uname command

touch command and mkdir command

cp command and mv command

rmdir command and rm command

tar command

cat command and echo command

head command, tail command and sort command

pip command and grep command

diff command

sudo command and su command

find command

Hard Link and Soft Link

gedit editor and nano editor

vi editor and vim editor

Users and Groups Management

Creating Users and Deleting Users

Demo Creating Users and Deleting Users

Creating Groups and Deleting Groups

Demo Creating Groups and Deleting Groups

File Ownership and Permissions

Permission Levels

Permission Modes

Changing Ownership and Group Membership

Demo File Ownership and Permissions

Umask Default Permission Sets

Demo Umask Default Permission Sets

Three Special Permissions

Demo Three special permissions

Changing File Attributes

Demo Changing File Attributes

Superuser and visudo Command

Demo Superuser and visudo Command

Access Control Lists

ACLs Recursive and Deleting ACLs

Demo Access Control Lists

Linux Network Configuration

Adding DNS Server IP Address

Adding a Host with an Alias

nmcli command

nmtui command

Linux Security

SELinux Configuration

Apache Configuration

Firewalld Configuration

Operate Running Systems

Processes Commands

Processes Signals

scp command and ssh command

Switching into Different Targets on Linux

Configuring and Maintaining Systems

Configuring Services with Systemctl

Automating Tasks with Cron Jobs

Modifying GRUB Bootloader

Tuned Profile

Installing Package Modules

Configuring Repositories

Breaking into the System

Storage Techniques

Creating Standard Partitions

Creating SWAP

Creating (PVS – VGS – LVM)

Mounting and Unmounting (Temporarily and Permanently)

Adjusting and Removing (LVM – VGS – PVS)

Managing Layered Storage with Startis

Disk Compression with VDO