Lesson 3.1: Boot, reboot, and shut down a system normally
Reboot
[root@serverB ~]# rebootPoweroff
[root@serverB ~]# poweroffRedhat Enterprise Linux 9 - EX200 RHCSA
- 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