Red Hat Certified System Admin (RHCSA) Prep

Setting up your lab

• Deploying your VM
• Configuring storage while installing
• Infrastructure as Code
• Enforcing SELINUX

Basic Tasks

• User Management
• File Permissions
• Access Control Lists
• Finding things (Inside Files vs Inside Filesystems)
• Other applications with the find command

Logical Volume Manager

• Create Filesystems
• Create Volume Group with specific extent size
• Extend the size of file systems
• Reduce the size of File Systems
• Add swap spac
• Troubleshoot filesystems

Compress files and Directories

• Tar
• gzip
• Bzip2
• Take over the root account
• Steps to change root’s passwd
• Relabel all files in the system for SELINUX

Targets and Services

• Understanding the updated “runlevels”
• Default targets
• Changing target
• Starting, Stopping, and checking the status services (service and chkconfig update)

Cron

• Installing cron
• Configuring Cron
• Creating cron jobs
• Verifying cron jobs

Yum

• Configuring repositories
• Troubleshooting repositories
• Disabling repositories

Kernel Updates

• Configuring a repository for kernel updates
• Updating the kernel
• Making sure you can boot from new and old version of the kernel
• Making a specific version of the kernel the default version

NTP

• Installing Chrony
• Configuring Network Time Services

Configuring LDAP clients with an existing LDAP server

• Understanding what LDAP is and how it works
• Installing LDAP on a client system
• Installing GUI tool for LDAP
• Configuring autofs with LDAP

Firewall

• Understanding firewalls
• Listing firewall rules
• Opening ports

NTP

• Installing Chrony
• Configuring Network Time Services

Configuring LDAP clients with an existing LDAP server

• Understanding what LDAP is and how it works
• Installing LDAP on a client system
• Installing GUI tool for LDAP
• Configuring autofs with LDAP

Firewall

• Understanding firewalls
• Listing firewall rules
• Opening ports

In these 2 modules we will review any doubts and have practice exams that mimic the official test to get you used to the time limitations and expectations.