Red Hat System Administration II
Abstract
| Goal | Review tasks from Red Hat System Administration II |
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After completing this section, you should have reviewed and refreshed the knowledge and skills learned in Red Hat System Administration II
Before beginning the comprehensive review for this course, you should be comfortable with the topics covered in each chapter.
You can refer to earlier sections in the textbook for extra study.
Run commands more efficiently by using advanced features of the Bash shell, shell scripts, and various utilities provided by Red Hat Enterprise Linux.
Automate sequences of commands by writing a simple shell script.
Efficiently run commands over lists of items in a script or from the command-line using for loops and conditionals.
Find text matching a pattern in log files and command output using the grep command and regular expressions.
Schedule tasks to automatically execute in the future.
Set up a command that runs once at some point in the future.
Schedule commands to run on a repeating schedule using a user’s crontab file.
Schedule commands to run on a repeating schedule using the system crontab file and directories.
Enable and disable systemd timers, and configure a timer that manages temporary files.
Improve system performance by setting tuning parameters and adjusting scheduling priority of processes.
Optimize system performance by selecting a tuning profile managed by the tuned daemon.
Prioritize or de-prioritize specific processes with the nice and renice commands.
Interpret and set Access Control Lists (ACLs) on files to handle situations requiring complex user and group access permissions.
Describe use cases for ACLs, identify files that have ACLs set, and interpret the effect of those ACLs.
Set and remove ACLs on files and define default ACLs automatically set by a directory on newly created files.
Protect and manage the security of a server by using SELinux.
Describe how SELinux protects resources and how to select the enforcement mode.
Configure a file's SELinux context to control how processes interact with that file.
Configure SELinux booleans to allow runtime policy changes for varying access needs.
Investigate SELinux log messages and troubleshoot SELinux AVC denials.
Create and manage storage devices, partitions, file systems, and swap spaces from the command line.
Create storage partitions, format them with file systems, and mount them for use.
Create and manage swap spaces to supplement physical memory.
Create and manage logical volumes containing file systems and swap spaces from the command line.
Create and manage logical volumes from storage devices, and format them with file systems or prepare them with swap spaces.
Add and remove storage assigned to volume groups, and nondestructively extend the size of a logical volume formatted with a file system.
Manage storage using the Stratis local storage management system and use the VDO volumes to optimize storage space in use.
Manage multiple storage layers using Stratis local storage management.
Optimize the use of storage space by using VDO to compress and deduplicate data on storage devices.
Access network-attached storage using the NFS protocol.
Mount, use, and unmount an NFS export from the command line and at boot time.
Configure the automounter with direct and indirect maps to automatically mount an NFS file system on demand, and unmount it when it is no longer in use.
Manage the boot process to control services offered and to troubleshoot and repair problems.
Describe the Red Hat Enterprise Linux boot process, set the default target used when booting, and boot a system to a non-default target.
Log in to a system and change the root password when the current root password has been lost.
Manually repair file system configuration or corruption issues that stop the boot process.
Control network connections to services using the system firewall and SELinux rules.
Accept or reject network connections to system services using firewalld rules.
Control whether network services can use specific networking ports by managing SELinux port labels.
Install Red Hat Enterprise Linux on servers and virtual machines.
Install Red Hat Enterprise Linux on a server.
Automate the installation process using Kickstart.
Install a virtual machine on your Red Hat Enterprise Linux server using Cockpit.
Obtain, run, and manage simple lightweight services as containers on a single Red Hat Enterprise Linux server.
Explain what a container is and how to use one to manage and deploy applications with supporting software libraries and dependencies.
Install container management tools and run a simple rootless container.
Find, retrieve, inspect, and manage container images obtained from a remote container registry and stored on your server.
Run containers with advanced options, list the containers running on the system, and start, stop, and kill containers.
Provide persistent storage for container data by mounting a directory from the container host inside a running container.
Start, stop, and check the status of a container as a systemd service.
