Welcome to Enable Sysadmin
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![Man listening to music while he works](/sysadmin/sites/default/files/2022-02/man-music-hobby-career.jpg)
Consider the variables when planning and executing your AAP or Tower upgrade and learn what makes sense for your scenario.
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![Containers](/sysadmin/sites/default/files/2019-12/Containers%20Cropped.jpg)
Now that your environment has been set up, deploy a sample application on an OpenShift Local cluster.
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![Containers](/sysadmin/sites/default/files/2019-12/Containers%20Cropped.jpg)
Install Red Hat OpenShift Local on your own machine to test your work before deployment.
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![Magic trick with Ace of Spades](/sysadmin/sites/default/files/2020-12/ace-magic-trick-formatting-date.jpg)
Get past the illusion of hostvars being difficult and begin using them in your playbooks, tasks, and roles.
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![Photo illustration showing an outline of a person's head filled with gear shapes over a blue background](/sysadmin/sites/default/files/2023-04/automation-gears-person.jpg)
Learn the basics of using Redfish and how to set up the Redfish Mockup Server.
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![A blue cable plugged into a green Raspberry Pi](/sysadmin/sites/default/files/2022-10/blue-network-cable-raspberry-pi.jpg)
Get greater control over TCP port checking with a DIY, customizable approach using Python and Scapy.
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![Laptop keyboard with Ethernet patch cable](/sysadmin/sites/default/files/2020-12/keyboard-network-cable-return-key.jpg)
Make life simpler by automating network checks with tools like Expect, Bash, Netcat, and Nmap instead.
Hands-on learning path:
Deploy a cluster in Red Hat OpenShift Service on AWS
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![Photo of a hard disk drive](/sysadmin/sites/default/files/2023-03/hard-drive-1000-600.jpg)
Back up your AAP environment to restore it to your current environment or a new one.
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![Red and yellow doors on a brick building](/sysadmin/sites/default/files/2022-08/doors-security-context-constraints_0.jpg)
Learn how to use Podman and Nginx to work with applications from different domains on the same host.
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![Person typing code on laptop](/sysadmin/sites/default/files/2021-11/git-diff-patch.jpg)
All your excuses for not doing updates—from fear of downtime to concerns about testing—are wrong.
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![Man sitting and working on a computer](/sysadmin/sites/default/files/2021-11/home-lab-linux-skills.jpg)
Create customized templates for your Red Hat Enterprise Linux (RHEL)-based homelab that you can deploy repeatedly with automated upkeep.
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![Two packages with red ribbon on red background](/sysadmin/sites/default/files/2021-10/Linux-package-RPM.jpg)
Podman supports two ways for storing sensitive data: using raw Podman secrets or creating Kubernetes secrets using Podman.
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![Configure network settings with Ansible system roles](/sysadmin/sites/default/files/2021-02/NetworkConfiguration.jpg)
libvirt's default Linux bridge imposes limitations with some advanced network features. Try using OVS to implement libvirt networks instead.