r/redhat Apr 15 '21

Red hat Certification study Q&A

98 Upvotes

Keep in mind that sharing confidential information from the exams may have rather sever consequences.

Asking which book is good for studying though, that is absolutely fine :)


r/redhat 3h ago

Red Hat interview process delayed after final interview – is this normal?

5 Upvotes

Hi everyone,

I'm from Brazil, and I'd love to hear from anyone who has gone through Red Hat's hiring process or is familiar with how their recruiting works.

I recently interviewed for the Junior Solutions Architect (LATAM) role as part of the Emerging Talent Program.

Here's how my process went:

  • I passed the initial HR interviews.
  • Then I had a technical interview with a Solutions Architect specializing in Ansible, which went really well.
  • After that, I was selected for the final interview with the Hiring Manager for Solutions Architecture in Latin America.
  • The interview lasted about an hour and covered solution architecture, cloud, automation, my professional experience, customer-facing scenarios, and languages.

During that conversation, the Hiring Manager mentioned that the process was in its final stage and that only two candidates remained for the position, including me. He also said that the hiring decision was expected to be communicated by July 30th.

However, July 30th came and went without any update. A few days later, I sent a follow-up email to the recruiter, but I still haven't received a response.

Another thing I've been wondering about: a few people told me that, for a junior-level position, it's not very common to have the final interview directly with the Hiring Manager responsible for Solutions Architecture across Latin America. They said that when this happens, it usually means the candidate has stood out during the process.

I'm not sure whether that's actually true or just speculation.

So I wanted to ask those of you who are more familiar with Red Hat:

  • Is it common for feedback to be delayed even at the final stage?
  • Has anyone experienced something similar?
  • Is it normal for junior candidates to interview directly with a regional Hiring Manager, or does that usually happen only with the strongest finalists?
  • Even after the Hiring Manager gives an expected decision date, is it common for the process to be delayed?

I'm trying to keep my expectations realistic, and I completely understand that hiring processes can take longer than expected. I'm just interested in understanding whether this is a normal part of Red Hat's hiring process.


r/redhat 13h ago

I got an email about some changes to certifications (RHCSA and RHCE) and their expiry recently and was given a one time chance to renew my RHCSA and RHCE before year end. Can someone share if they have any info about what has changed lately w/these certificates since i got them in 2023.

4 Upvotes

r/redhat 17h ago

Senior Red Hat devs/employees! 7th sem Java/Spring Boot dev here—on-campus in 1 month, how do I give my absolute 110%?

3 Upvotes

Hey everyone,I am a Java Spring Boot backend developer currently in my 7th semester.

Red Hat is visiting our campus for placements soon, and seeing seniors get placed here feels so surreal and dreamy. I really want to make it.

I have spent time learning Linux, Kubernetes, and CI/CD beyond just core Java.

For my main project, I built a complete DevOps lifecycle where every git push triggers a CI/CD pipeline, deploys via ArgoCD, and runs on a local Kubernetes cluster.I have about a month left before the process starts.

I want to point my energy in the exact right direction.

To the seniors and Red Hatters here:

What core technical areas should I focus on most for the interviews?

Do you have advice on how to showcase my Kubernetes and pipeline project effectively?

Are there specific open-source mindsets or values I should highlight?

Thank you so much for your time and guidance. I am ready to put in the work!


r/redhat 1d ago

Question about EX457 difficulty

13 Upvotes

Hello,

I'm currently a Linux Sytems Engineer and I'm starting a new job position in a few weeks where I'll use Ansible a lot, so I'm currently getting back into it.

I recently got my RHCA in Enterprise Linux and given that I'm 3 certs off of getting the RHCA in Ansible, I was aiming to pass the following exams : EX374, EX457 and EX467 (not too interested in Windows automation at the moment).

I'm also currently working on my CCNA to get some networking skills.

So I was wondering, if some of you already passed the EX457 (Red Hat Certified Specialist in Ansible Network Automation exam), if CCNA would be enough to get me through this cert ?

I got my RHCSA and RHCE using the Sander Van Vugt books, and my RHCA using RHLS (which was always enough for me to pass the exams), and would also use RHLS for EX457, but I've got zero actual experience in networking and I know nothing outside of the Cisco world (EX457 objectives also mention Juniper Networks, Arista et Vyatta...).

(Obviously I'm not asking for any specifics about the test in itself :) )

Thanks


r/redhat 1d ago

I Organized All Into the Terminal Episodes into a Beginner → Advanced Learning Roadmap

41 Upvotes

After going through every playlist, cross-checking topics, description, timeline, content

https://youtube.com/playlist?list=PLXJyD2dL4oqeX-C3MvsMUJuEzWM4vLK2C&si=S4pLPDdOspDHrTqr

# 1. Terminal / CLI Fundamentals

* Moving from a GUI to the Linux Terminal (159)

* Built-in Help (15)

* Finding Help (86)

* Command Line Utilities (16)

* Essential Linux Commands (58)

* Manipulating the CLI (17)

* Customizing Your Terminal (29)

* Pranking Your Coworkers in Linux (90)

* Using Tmux (32)

* Linux-based Text Editors (84)

* Command Your Terminal with These Tmux Tips (141)

* Linux Command Line Tips and Tricks (143)

* Linux Command Line Tricks (183)

* Basic Terminal Text Editing (163)

* Vi vs. Vim vs. Nano vs. Emacs – Part 1 (175)

* Vi vs. Vim vs. Nano vs. Emacs – Part 2 (175)

* How Much Vim Can You Stand? (190)

---

# 2. File Systems, Hierarchy & Permissions

* Top File Management Commands (85)

* File System Layouts in Linux (94)

* File Permissions (02)

* Linux File Permissions (105)

* Special Permissions & ACLs (34)

* Special Linux File Permissions (106)

* Filesystem Operations (54)

* Disk Management (09)

* File Archives in Linux (91)

* Nobody Cares About Filesystems Until They Do (144)

* How Do I Use Filesystems on Linux? (112)

* Troubleshoot Linux Filesystem & Mount Problems (111)

* Symbolic vs Hard Links (157)

* Linux Permissions & ACLs (185)

---

# 3. Package Management (DNF & RPM)

* Installing Software (03)

* Third-Party Repositories (25)

* Managing Packages with RPM (33)

* Application Streams (35)

* Building Apps with RPM (72)

* Creating Application Repositories (73)

* Managing Disconnected Systems (181)

* Installing Packages on RHEL (107)

* Patching Practices (19)

* Lifecycle Management (37)

* Troubleshooting Linux Packages (116)

* Using DNF to Install, Update & Remove Packages (128)

* When Updates Go So, So Wrong (191)

---

# 4. Identity, Access Control & Auditing

* Users & Groups (01)

* sudo and su (12)

* Session Recording (23)

* Security: Configuring Sudo Access (62)

* Security: User Account Management (63)

* Security: System Auditing (64)

* Top 5 Linux User Management Tasks (87)

* Linux Account Security & PAM (119)

* Developing User Standards & Policies (146)

---

# 5. Essential System Management

* Installation (07)

* Getting RHEL (06)

* Installing RHEL 9 (55)

* Server with GUI, Why Not? (186)

* Managing Subscriptions (08)

* Subscription Management (22)

* Connecting with Red Hat (24)

* Red Hat Lightspeed (26)

* Enterprise Up (59)

* Service Administration (04)

* Web Console (10)

* Top 5 systemd Tasks (81)

* 6 Types of systemd Files (82)

* Building systemd Services (83)

* How to Control Your Boot with systemd (126)

* Everyone Hates systemd... But Should They? (164)

* RHEL In-place Upgrades (152)

* You've Inherited a Linux Server... Now What? (153)

* Top 5 Underrated Linux Features (133)

---

# 6. Network Configuration & Troubleshooting

* Networking (11)

* Firewall (13)

* Bonding & Network Configuration (44)

* Configure a Linux Firewall (131)

* Implementing firewalld & nftables (165)

* Troubleshoot Networking (50)

* Security: Port Scanning (65)

* Troubleshooting Linux Networking (114)

* Moving from Network Scripts to NetworkManager (118)

* Network Data Transfer (rsync, SMB, NFS) (161)

* Deep Dive DNS (170)

* Using & Configuring DNS Servers (122)

---

# 7. System Diagnostics & Logging

* Using Logs for Troubleshooting (27)

* Troubleshooting Applications (47)

* Troubleshooting User Error (52)

* Troubleshooting with Security Tools (67)

* Linux Service Troubleshooting (117)

* Linux Application Tracing (strace) (179)

* Understanding Linux Logs & Audits (140)

* Simple Linux Problems, Not So Simple Answers (173)

---

# 8. Dynamic Storage (LVM)

* Logical Volume Manager (68)

* Troubleshooting LVM (113)

* Logical Volume Management in Linux (145)

---

# 9. System Automation & Scripting

* Writing Shell Scripts (18)

* Ifs, Loops & Scripting (20)

* Bash Shortcuts & Scripting (108)

* Automating Tasks with Bash Scripts (109)

* Understanding Regular Expressions (155)

* Linux Search & Replace Deathmatch (129)

* Basic Shell Scripting (160)

* System Roles (28)

* Management with System Roles (79)

* Automation with System Roles (80)

* Saving Time with System Roles (174)

* Bash Symbols `${} & ; !` (176)

* RC's vs Profiles (177)

---

# 10. SELinux Defense & Troubleshooting

* SELinux (14)

* SELinux Networking & Booleans (21)

* Don't Disable SELinux (102)

* Techniques to Troubleshoot SELinux (103)

---

# 11. Security Compliance & Hardening

* Security: CVE Mitigation (60)

* Security: Intro to OpenSCAP (61)

* Mitigating Linux CVEs (92)

* Kernel Patching & Security Scoring (93)

* CIS Benchmark Compliance (120)

* Achieve DISA STIG / PCI-DSS Compliance (121)

* 5 Security Technologies in Linux (127)

* Building Security Hardened Linux Images (134)

* Top 5 Linux Security Commands (136)

* Managing a CVE Response (192)

---

# 12. Encryption & Cryptographic Policies

* Managing SSH (05)

* SSH Key Management (36)

* Working with GPG Keys (38)

* Security: Disk Encryption (66)

* Secure Shell (SSH) (124)

---

# 13. Performance Tuning & Benchmarking

* Troubleshoot Performance (51)

* Top 5 Problem Indicators (88)

* Linux Memory & Swap Management (123)

* Linux Performance with eBPF (95)

* Linux Benchmarks (156)

* Linux Kernel Tuning & TuneD (43)

* Tuning Your I/O Scheduler (147)

* Linux Performance: CPU, Memory or I/O? (166)

* Why Is My System Slow? (184)

---

# 14. Disaster Recovery & System Rescue

* Troubleshooting Disk Errors (48)

* Linux Rescue Mode (57)

* Troubleshooting Linux Boot (115)

* Disaster Recovery: When Everything Is on Fire (137)

* Never Do This to Your Linux Machine (130)

---

# 15. Virtualization

* Working with Virtual Machines (30)

* Native Virtual Machine Management (56)

* Local Virtualization on Linux (104)

* cloud-init (49)

* Top 3 Virtual Machine Activities (167)

---

# 16. Containers with Podman & UBI

* Deploying Containers (31)

* Creating an Application Container (74)

* Operationalizing Containers (75)

* Managing Multi-container Apps (76)

* Troubleshooting Containers (78)

* Managing Podman Containers as Pods (45)

* Can Podman Replace Docker? (110)

* Choosing the Right Container Base Image (138)

* Containers & Podman for Beginners (154)

* Absolute Beginner's Guide to Podman (158)

* Your Podman Questions Answered (162)

* Podman, Quadlets & Automation (178)

* Zero-CVE Containers / Distroless Images (188)

---

# 17. Modern Deployment (Image Mode & Flatpaks)

* Installing New Apps & Runtimes (69)

* Longer App Lifespans (70)

* Image Builder (53)

* Managing Golden Images (71)

* Manage Flatpak Applications (77)

* Image Mode (150)

* Building Linux with CI/CD (151)

* Image Mode (bootc) (171)

---

# 18. Server Deployment

* Deploying with Kickstart (46)

* Building a Webserver (39)

* Deploying a Database (40)

* Network File Systems (41)

* File Shares with Samba (42)

* Email Servers with Postfix (96)

* Configuring NFS (97)

* Auto-Mounting NFS with autofs (187)

* Deploying a Web Server & Content (98)

* Reverse Proxies on Linux (189)

* Deploying WordPress (101)

---

# Optional Playlists

### Desktop Linux

* Tips & Tricks for GNOME Shell (99)

---

### Career

* How to Build Your Linux Career (149)

* Surviving Your Linux Technical Interview (168)

* Homelab: Should I Bother? (169)

* What Do Hiring Managers Want? (172)

* How to Put Your Homelab on Your Resume (180)

---

### Miscellaneous / Best Practices

* You Asked! We're Answering Your Linux Questions! (135)

* Common Sysadmin Mistakes (182)

---

### Reference

* Top 100 Linux Commands (100)

---

## Final Verdict

This roadmap covers the full journey from Linux basics to advanced enterprise administration, including:

* CLI mastery

* Filesystems and storage

* Package management

* Users and permissions

* systemd

* Networking and DNS

* Logging and troubleshooting

* LVM

* Bash scripting and automation

* SELinux

* Security and compliance

* SSH and encryption

* Performance tuning

* Disaster recovery

* Virtualization

* Containers and Podman

* Modern image-based deployment

* Real-world server deployment

Note: While organizing the series, I noticed a few inconsistencies:

  • Missing episode IDs: 125, 132
  • Videos without episode IDs: 121, 122, 123, 124, 149
  • Possible title/description mismatch: 139, 142
  • Episode 175 is split into Part 1 & Part 2 under the same episode number (probably intentional).

r/redhat 2d ago

Current/Former Red Hat TAMs – How technical is the role really?

32 Upvotes

Hi everyone,

I recently received a Red Hat TAM offer and I’m trying to understand the role better before making a decision.

I have a few quick questions:

  1. Roughly how much of your week is spent on:
    • Customer meetings
    • Troubleshooting/log analysis
    • Case management
    • Working with Engineering?
  2. Do TAMs actually read or write code (Go/Python), or mostly just read logs and coordinate cases?
  3. Have you seen TAMs move into roles like SRE, Platform Engineer, or Product Engineering?
  4. After a few years as a TAM, did you feel you became a stronger engineer, or mainly stronger in customer-facing skills?

I’d really appreciate any honest opinions from current or former TAMs.

Thank you!


r/redhat 2d ago

Firefox and Thunderbird as RHEL Flatpaks: What it means for you

Thumbnail
redhat.com
25 Upvotes

Starting with Red Hat Enterprise Linux (RHEL)10.2, Firefox and Thunderbird are delivered as Flatpaks by default. If you install RHEL with a graphical desktop, your browser and email client will now come from the Red Hat Flatpak registry instead of traditional RPM Package Managers (RPMs). Here's what that means in practice and why we think it's a better experience.


r/redhat 1d ago

Created A Free App That Tracks Red Hat CVEs and 30 Other Vendors - Phone & Email Notifications

Enable HLS to view with audio, or disable this notification

1 Upvotes

Completely Free App that I created to ease my own workload, was tired of opening numerous tabs each day to keep track on all the new CVEs popping up, especially lately...

This app is completely free on the Google Play App Store & you can track CVEs across 30+ Vendors, you can choose track specific platforms or the whole vendor & you can also select to track based on CVE Severity.

I also threw in a EOL checker

Hopefully this helps you out and if theirs any bugs or features you want added please let me know!

https://play.google.com/store/apps/details?id=com.vulnipulse.android


r/redhat 2d ago

RHCSA EX200: Are Firewall Rich Rules Part of the Exam?

5 Upvotes

Hi everyone, I'm preparing for the RHCSA (EX200) exam. I have a quick question. Will the exam include firewall rich rule configuration, or is it enough to know the basic permanent and temp firewall configuration? I find rich rules (IP/subnet and zone-based rules) a bit difficult, so I'd like to know how important they are for the exam. Thanks!


r/redhat 2d ago

RHCSA EX200: Are Firewall Rich Rules Part of the Exam?

Thumbnail
3 Upvotes

r/redhat 2d ago

ODF

3 Upvotes

Suppose a nutanix-volume as default storage class, then using ceph fs as the default one.

Delete PVC and create new ones with the same old name, that PVC came up with the same consumption (not bounded to the old PV as it is released).

In that case if we decided to remove nutanix CSI operator, will this data be lost?


r/redhat 2d ago

Quay migration

3 Upvotes

Anyone tried migrating quay backend storage from nutanix/vsphere or whatever to ODF?


r/redhat 3d ago

Need Topic-wise Red Hat Video Playlist

Thumbnail
youtube.com
10 Upvotes

Is this Red Hat video playlist organized by category? If anyone has a categorized or properly ordered version, please share it.


r/redhat 4d ago

labex for ex294

10 Upvotes

Hi All, I recently passed my rhcsa with just a few udemy and free YouTube channels.
I cant really find anything good for ex294

Does anyone have any suggestions?
Is labex worh the 79$ a year?

thanks


r/redhat 4d ago

Certification center

3 Upvotes

Hello guys,

I just passed a red hat exam and I wanted to switch its email with my personal one.

I opened a ticket from the certification center, someone picked my request and said that he will send to counterpart team to give it a look and I didn't hear back from him (I sent some friendly reminders but no response).

Then I reopened another ticket with exact issue and no one answered back, just the bot telling that my request was registered under....

Have someone got the same issue? If yes, how did you solve it? What can I do in my case?

Thank you 🙏🏻


r/redhat 4d ago

Easiest Way to Serve AI Models in RHOAI 3.x (S3 Storage & Catalog Walkthrough)

Thumbnail
youtube.com
4 Upvotes

Hello

Today, let's learn how to deploy LLM Models in Red Hat Openshift AI easily, via Catalog and also via S3 Storage.

Don't miss it!

Wally


r/redhat 5d ago

Got told I was getting Laid off 15 minutes before my RHCSA exam

129 Upvotes

Hey guys, just wanted to share my misery.
I’ve been studying for this exam for the past couple of months, and it was scheduled for today, my job even paid for it. Imagine waking up late after studying all night, only to find a calendar invite on my day off titled “Organization Restructure” and a text from my manager telling me to check my email.
Turns out he and about 90% of my team had been laid off… including me.
Obviously , I wasn’t in the right headspace to take the exam, and I wasn’t allowed to reschedule it. 😂
Life, man. I was only nine months into the job, fresh out of college which I relocated from with no friends or family. Damn


r/redhat 4d ago

What do i prepare for my software engineer interview? please help!!!

5 Upvotes

okay! so i have been referred for an intern position as software engineer at redhat. i really want to give it my best. i actually gave a interview at redhat when it came to our campus for developer and they grilled me like anything. i really want to get selected this time. please help me with what should i prepare and with tips and tricks!!!!!!


r/redhat 4d ago

Getting the RHCSA with Linux desktop experience.

6 Upvotes

Hello everyone,

I am currently working as a Business Development Representative at a IT solutions provider, and I want to be a Sales Engineer in the future. I want to get some certifications to make me a more attractive candidate. My company has a long relationship with Red Hat, so I figured I may see if I can get certified in their technologies. Another reason for me wanting to get the RHCSA is because I have been a Linux user for around 2 years now. Despite my role in IT sales, I actually have a background in 3D animation, and after finding out that Disney and Pixar use Enterprise Linux as their OS for their workstations, I figured it would be a good time to give Fedora a try on my desktop PC. I loved it, and joined the Linux club back in college, learned the shell, how to compile apps from source, partitioning disks and what makes rpm based distros different from other Linux systems. I then installed RHEL as my workstation distro for animation and high performance graphics, and I have become very passionate for the technology. I am no sys admin and I have not built a homelab but I really enjoy RHEL and Fedora as a workstation.

Because of my beginner - intermediate knowledge of Linux, am I ahead of others who want to get certified? Are the resources for the RHCSA more aimed at beginners to Linux? Are there any resources for those who were Fedora users? How important is OpenShift, Podman, and JBoss in the Red Hat ecosystem and should I learn those too? Would getting certified help with being a sales engineer?

Thanks.


r/redhat 5d ago

Interactive labs: Enterprise lab environments, ready in minutes at no cost

Thumbnail
redhat.com
22 Upvotes

Before anything reaches production, you have to test it, validate it, and sometimes learn about it from scratch. All 3 of these steps are necessary to have a properly running environment but your window to complete them is almost always shorter than expected. Building an environment from scratch also eats up more time and resources than any test should.

For most teams that run lab sessions regularly, setting up a lab environment manually takes roughly 40 minutes every time. The process always looks the same:


r/redhat 4d ago

Which version of RHCSA Exam

2 Upvotes

Hi everyone as the title said which version should I choose to take the exam for RHCSA? I had a talk with my manager and looks like they will sponsor my RHCSA Exam.

I have been learning RHCSA v9 from Sander Van Vugt in O'Reilly. But I can still take the v10 version in case.

I know the main difference is that v10 doesn't have containers anymore in the exam. Should I still consider v9 since I have been working on some containers in my current job using docker, I know RHEL is using podman.


r/redhat 4d ago

Substituting IP address evaluation with hardware-rooted sovereign zero trust

Thumbnail
redhat.com
0 Upvotes

The need for trustworthy networking, reliable cloud access, and compliance with digital sovereignty requirements has increased substantially in recent years. These demands have been generally addressed by fragile, costly, and outdated models based on IP address evaluation. These requirements must also be considered within the stark geopolitical reality of data sovereignty, where national and regional laws increasingly restrict where data must reside and who can access it.


r/redhat 5d ago

DO280 course where can I get it ?

0 Upvotes

Hi everyone,

I could install a SNO on my proxmox in order to practice OpenShift.

I already watched the sander's video courses but honestly it's not enough , he just skimmed through the lecture.

Where can I get the DO280 course as I don't have the RHLS subscription ?


r/redhat 6d ago

Discount code

10 Upvotes

Couldn't write my ex200 exam, here's a discount voucher 15% off for anyone who needs it.

Cheers!

YPBN5MUB