Lesson 6.3: Configure systems to boot into a specific target automatically
[root@serverC ~]# systemctl get-default graphical.target [root@serverC ~]# systemctl set-default multi-user.target
Redhat Enterprise Linux 9 - EX200 RHCSA
Lesson 1.1: Access a shell prompt and issue commands with correct syntax
Lesson 1.2: Use input-output redirection (>, >>, |, 2>, etc.)
Lesson 1.3: Use grep and regular expressions to analyze text
Lesson 1.4: Access remote systems using SSH
Lesson 1.5: Log in and switch users in multiuser targets
Lesson 1.6: Archive, compress, unpack, and uncompress files using tar, gzip, and bzip2
Lesson 1.7: Create and edit text files
Lesson 1.8: Create, delete, copy, and move files and directories
Lesson 1.9: Create hard and soft links
Lesson 1.10: Basics of Users, Groups & Permissions
Lesson 1.11: Locate, read, and use system documentation including man, info, and files in /usr/share/doc
Lesson 1.12: Using Wildcard Characters
Lesson 1.13: Defining Command Alias
Lesson 1.14: Copying, Removing Files and Directories
Lesson 1.16: Archiving Files & Directories
Lesson 1.17: Getting Information
Lesson 1.17: Configuring Networks
Lesson 1.19: Advanced file permissions
Lesson 3.1: Boot, reboot, and shut down a system normally
Lesson 3.2: Boot systems into different targets manually
Lesson 3.3: Interrupt the boot process in order to gain access to a system
Lesson 3.4: Identify CPU/memory intensive processes and kill processes
Lesson 3.5: Adjust process scheduling
Lesson 3.6: Manage tuning profiles
Lesson 3.7: Locate and interpret system log files and journals
Lesson 3.8: Preserve system journals
Lesson 3.9: Start, stop, and check the status of network services
Lesson 3.10: Securely transfer files between systems
Lesson 3.11: Stopping and Resuming a Process
Lesson 4.1: List, create, delete partitions on MBR and GPT disks
Lesson 4.2: Create and remove physical volumes
Lesson 4.3: Assign physical volumes to volume groups
Lesson 4.4: Create and delete logical volumes
Lesson 4.5: Configure systems to mount file systems at boot by universally unique ID (UUID) or label
Lesson 4.6: Add new partitions and logical volumes, and swap to a system non-destructively
Exercise 1: Disk Management - Basic Storage
Exercise 2: Disk Management - Managing Logical Volume
Exercise 3: Disk Management - Managing Advanced Storage
Lesson 5.1: Create, mount, unmount, and use vfat, ext4, and xfs file systems
Lesson 5.2: Mount and unmount network file systems using NFS
Lesson 5.3: Configure autofs
Lesson 5.4: Extend existing logical volumes
Lesson 5.5: Create and configure set-GID directories for collaboration
Lesson 5.6: Diagnose and correct file permission problems
Lesson 6.1: Schedule tasks using at and cron
Lesson 6.2: Start and stop services and configure services to start automatically at boot
Lesson 6.3: Configure systems to boot into a specific target automatically
Lesson 6.4: Configure time service clients
Lesson 6.5: Install and update software packages from Red Hat Network, a remote repository, or from the local file system
Lesson 6.6: Modify the system bootloader
Lesson 9.1: Configure firewall settings using firewall-cmd/firewalld
Lesson 9.2: Manage default file permissions
Lesson 9.3: Configure key-based authentication for SSH
Lesson 9.4: Set enforcing and permissive modes for SELinux
Lesson 9.5: List and identify SELinux file and process context
Lesson 9.6: Restore default file contexts
Lesson 9.7: Manage SELinux port labels
Lesson 9.8: Use boolean settings to modify system SELinux settings
Lesson 9.9: Diagnose and address routine SELinux policy violations
Lesson 10.1: Find and retrieve container images from a remote registry
Lesson 10.2: Inspect container images
Lesson 10.3: Perform container management using commands such as podman and skopeo
Lesson 10.4: Build a container from a Containerfile
Lesson 10.5: Perform basic container management such as running, starting, stopping, and listing running containers
Lesson 10.6: Run a service inside a container
Lesson 10.7: Configure a container to start automatically as a systemd service
Lesson 10.8: Attach persistent storage to a container