RedHat Linux
(RHCSA + RHCE)

1. Access a shell prompt and issue commands with correct syntax
2. Use input-output redirection (>, >>, |, 2>, etc.)
3. Use grep and regular expressions to analyze text
4. Access remote systems using SSH
5. Log in and switch users in multiuser targets
6. Archive, compress, unpack, and uncompress files using tar, star, gzip, and bzip2
7. Create and edit text files
8. Create, delete, copy, and move files and directories
9. Create hard and soft links
10. List, set, and change standard ugo/rwx permissions
11. Locate, read, and use system documentation including man, info, and files in /usr/share/doc

1. Conditionally execute code (use of: if, test, [], etc.)
2. Use Looping constructs (for, etc.) to process file, command line input
3. Process script inputs ($1, $2, etc.)
4. Processing output of shell commands within a script
5. Processing shell command exit codes

1. Boot, reboot, and shut down a system normally
2. Boot systems into different targets manually
3. Interrupt the boot process in order to gain access to a system
4. Identify CPU/memory intensive processes and kill processes
5. Adjust process scheduling
6. Manage tuning profiles
7. Locate and interpret system log files and journals
8. Preserve system journals
9. Start, stop, and check the status of network services
10. Securely transfer files between systems

1. List, create, delete partitions on MBR and GPT disks
2. Create and remove physical volumes
3. Assign physical volumes to volume groups
4. Create and delete logical volumes
5. Configure systems to mount file systems at boot by universally unique ID (UUID) or label
6. Add new partitions and logical volumes, and swap to a system non-destructively

1. Create, mount, unmount, and use vfat, ext4, and xfs file systems
2. Mount and unmount network file systems using NFS
3. Extend existing logical volumes
4. Create and configure set-GID directories for collaboration
6. Configure disk compression
7. Manage layered storage
8. Diagnose and correct file permission problems

1. Schedule tasks using at and cron
2. Start and stop services and configure services to start automatically at boot
3. Configure systems to boot into a specific target automatically
4. Configure time service clients
5. Install and update software packages from Red Hat Network, a remote repository, or from the local file system
6. Work with package module streams
7. Modify the system bootloader

1. Configure IPv4 and IPv6 addresses
2. Configure hostname resolution
3. Configure network services to start automatically at boot
4. Restrict network access using firewall-cmd/firewall

1. Create, delete, and modify local user accounts
2. Change passwords and adjust password aging for local user accounts
3. Create, delete, and modify local groups and group memberships
4. Configure superuser access

1. Configure firewall settings using firewall-cmd/firewalld
2. Create and use file access control lists
3. Configure key-based authentication for SSH
4. Set enforcing and permissive modes for SELinux
5. List and identify SELinux file and process context
6. Restore default file contexts
7. Use boolean settings to modify system SELinux settings
8. Diagnose and address routine SELinux policy violations

1. Find and retrieve container images from a remote registry
2. Inspect container images
3. Perform container management using commands such as podman and skopeo
4. Perform basic container management such as running, starting, stopping, and listing running containers
5. Run a service inside a container
6. Configure a container to start automatically as a systemd service
7. Attach persistent storage to a container

1. Understand and use essential tools
2. Operate running systems
3. Configure local storage
4. Create and configure file systems
5. Deploy, configure, and maintain systems
6. Manage users and groups
7. Manage security

1. Inventories
2. Modules
3. Variables
4. Facts
5. Plays
6. Playbooks
7. Configuration files
8. Use provided documentation to look up specific information about Ansible modules and commands

1. Install required packages
2. Create a static host inventory file
3. Create a configuration file
4. Create and use static inventories to define groups of hosts
5. Manage parallelism

1. Create and distribute SSH keys to managed nodes
2. Configure privilege escalation on managed nodes
3. Validate a working configuration using ad hoc Ansible commands

1. Create simple shell scripts
2. Create simple shell scripts that run ad hoc Ansible commands

1. Know how to work with commonly used Ansible modules
2. Use variables to retrieve the results of running a command
3. Use conditionals to control play execution
4. Configure error handling
5. Create playbooks to configure systems to a specified state

1. Software packages and repositories
2. Services
3. Firewall rules
4. File systems
5. Storage devices
6. File content
7. Archiving
8. Scheduled tasks
9. Security
10. Users and groups

1. Create roles
2. Download roles from an Ansible Galaxy and use them

1. Create and use templates to create customized configuration files
2. Use Ansible Vault in playbooks to protect sensitive data