RHCE v8 Practice Session: Ansible Core Components: Facts
A practice session focusing on the basics of Ansible facts.
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RHCE v8 Practice Session: Ansible Core Components: Variables – Part 1
This is the first of three practice sessions focused on variables in Ansible. In this video I explore variable types, loops with variables, and properties.
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RHCE v8 Practice Session: Ansible Core Components: Variables – Part 2
This is the second of three practice sessions focused on variables in Ansible. In this video I explore host vars, group vars, defining variables in an external file, and prompting for variable values.
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RHCE v8 Practice Session: Ansible Core Components: Modules
In this practice session I focus on what Ansible modules are, how to use them, and how to find documentation about them.
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RHCE v8 Practice Session: Ansible Core Components: Inventories
In this recorded practice session, I am reviewing concepts about inventory files in Ansible. I review default configurations, syntax, and using groups, as well as do some examples to confirm (or find error in) understanding.
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Home Lab Adventures: Reconfiguring Basic Home Lab Network
Finally got around to freeing myself from Google's router! Check out the video to see the basic setup of my home lab's network.
Enjoy!
Errata: At one point I talk about traffic traveling from host to DNS server to router to Internet, yes, I know that's now how stuff works. I must've been thinking about just the DNS query part. :)
Also, I mention "network resolution" I think. Clearly I meant name resolution.
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RHCE v8 Practice Session: Manage security
Final practice session covering the review of RHCSA material relevant to the RHCE exam.
1:53 - Configure firewall settings using firewall-cmd/firewalld
12:32 - Create and use file access control lists
25:28 - Configure key-based authentication for SSH (see below)
25:57 - Set enforcing and permissive modes for SELinux
29:46 - List and identify SELinux file and process context
35:52 - Restore default file contexts
40:04 - Use boolean settings to modify system SELinux settings
42:53 - Diagnose and address routine SELinux policy violations
SSH Key-based authentication is discussed on the first RHCE practice session video:
https://youtu.be/anNIS3KefQc?t=1317
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RHCE v8 Practice Session: Manage users and groups
Another practice session assessing what I remembered of the RHCSA topics -- it was rough, but I got through it.
Topics include:
2:47 - Create, delete, and modify local user accounts
13:12 - Change passwords and adjust password aging for local user accounts
22:42 - Create, delete, and modify local groups and group memberships
23:11 - Configure superuser access
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156
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RHCE v8 Practice Session: Deploy, configure, and maintain systems
Practice session concerning the deploy, configure, and maintain systems objectives.
Topics practiced:
2:42 - Schedule tasks using at and cron
15:35 - Start and stop services and configure services to start automatically at boot
16:02 - Configure systems to boot into a specific target automatically
17:49 - Configure time service clients
25:02 - Install and update software packages from Red Hat Network, a remote repository, or from the local file system
35:30 - Work with package module streams
41:01 - Modify the system bootloader
Errata:
-For baseurl, I should've prepended file://
-For listing the kernel, yum list kernel *was* in fact what I was looking for. Also yum list installed kernel can be used.
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RHCE v8 Practice Session: Create and configure file systems – Part 2
Part two of my practice session with reviewing the RHCE objective "Create and configure file systems."
Here are the topics discussed:
3:11 - Create and configure set-GID directories for collaboration
12:18 - Diagnose and correct file permission problems
14:30 - Configure disk compression
32:13 - Manage layered storage
Remember these practice sessions are not authoritative information or tutorials, but rather a recording of myself doing a self-assessment about a month prior to taking the exam. Hopefully it'll be useful to anyone preparing for RHCE
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RHCE v8 Practice Session: Create and configure file systems – Part 1
Practice session for the RHCE exam. This was recorded about a month before the exam (which I later passed). Remember, like all practice session videos, this isn't intended to be authoritative information or a tutorial; however, effort is made to have the information be accurate!
Topics covered:
3:40 - Create, mount, unmount, and use vfat, ext4, and xfs file systems
17:56 - Mount and unmount network file systems using NFS
39:49 - Extend existing logical volumes
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31
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RHCE v8 Practice Session: Configure local storage
RHCE practice session on the Configure local storage objective, which is a review of the RHCSA objectives within the configure local storage objective group.
Since several topics are covered, below is a table of contents.
1:56 - List, create, delete partitions on MBR and GPT disks
14:46 - Create and remove physical volumes
20:09 - Assign physical volumes to volume groups
22:37 - Create and delete logical volumes
26:15 - Configure systems to mount file systems at boot by universally unique ID (UUID) or label
37:56 - Add new partitions and logical volumes, and swap to a system non-destructively
45:35 - Deelete logical volumes
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33
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RHCE v8 Practice Session: Operate running systems
A practice session and review of RHCE objectives that come from the RHCSA exam. Since several objectives are covered, see the below table of contents.
2:11 Boot, reboot, and shut down a system normally
4:26 Boot systems into different targets manually
10:53 Identify CPU/memory intensive processes and kill processes
15:32 Adjust process scheduling
19:01 Manage tuning profiles
23:16 Locate and interpret system log files and journals
27:07 Preserve system journals
28:37 Start, stop, and check the status of network services
31:19 Securely transfer files between systems
34:24 Interrupt the boot process in order to gain access to a system
**ERRATA**
I might have hit a bug with systemctl isolate. Once RHCE is over, I'll see if I can replicate it. Also, I mention "load balancing" information being available in top. I meant to say "load average."
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36
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RHCE v8 Practice Session: Understand and use essential tools
Welcome to the RHCE v8 Practice Sessions!I'll be covering the "understand and use essential tools" objective in this video. Remember this video not intended to be a tutorial or to give authoritative information; however, I do try to make the information as accurate as possible. This video is a recording of me doing a self-assessment of exam readiness, and hopefully, you'll find it helpful with your own studies.
**Errata**When doing the audio editing for the video, I realized I was speaking incorrectly about inodes during the links section. As long as you have at least one link to an inode, then a file exists. Making hard links **does not** create new inodes, but rather it makes new links to an existing inode.
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19
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Create an RHCSA Lab Within Windows 10 Pro
Expanding on some viewer questions. Want to make a lab for RHCSA practice and only have a single Windows 10 pro computer? Watch this video to learn how you can make your lab for free!
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How to create a Windows 10 template for your KVM home lab
Learn how to create a template VM for Windows 10 in your KVM home lab that you can easily clone!
For virtio drivers, visit https://github.com/virtio-win/virtio-win-pkg-scripts/blob/master/README.md
#linux #windows #kvm #virtualization #homelab
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55
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Deploying and Configuring Active Directory with Powershell
How to deploy a new Active Directory forest and complete basic configuration on a Windows server using PowerShell.
Below is a discussion of why you would want to do this.
https://rumble.com/vdql5r-why-use-a-windows-server-without-a-gui-for-deploying-active-directory.html
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Advanced Music Intervals Part 4: Descending Chromatic Intervals
Part 4 of 5. We continue the discussion of interval inversions and use them to calculate descending intervals.
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Advanced Music Intervals Part 3: Interval Inversions
Part 3 of 5. Continuing our advanced study of intervals, this video explores inverting the intervals introduced from the previous videos. It serves as as preparation for part 4, which discusses descending intervals.
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Advanced Music Intervals Part 1: Ascending Chromatic Intervals
Part 1 of 5 in the Advanced Music Intervals series. We review perfect and major intervals, as well as be introduced to augmented, diminished, and minor intervals.
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Getting Started with Hyper-V Virtualization Part 4: Final Config and Create VMs
Final video in the Getting Started with Hyper-V Virtualization series. In this video, we complete the final configurations, copy ISO files to the Hyper-V Host and spin up our first VM!
Some discussino on Hyper-V virtual switches: https://rumble.com/vdotrh-how-to-configure-a-private-network-within-hyper-v.html
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Getting Started with Hyper-V Virtualization Part 3: Hyper-V Host and Client Config - Domain
In this video I'll show you how to configure the Hyper-V host and client if both are joined to the same Windows domain.
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Basics of Music Notation Part 3: Notating Rhythms (notes and rests)
Learn how to properly draw several types of rhythms with both their note and rest equivalent. Learn the proper way to combine some rhythms for easier reading.
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Basics of Music Notation Part 2: Clefs and Note Names
Continuing the study of the staff, we go into the three kinds of clefs (Treble, Bass, C-clef). You'll learn how staff position relates to note names, and how every thing relates to Middle C on the piano.
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RHCSA v8 Practice Session: List SELinux file and process context / Restore default file contexts
RHCSA practice session exploring SELinux.
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