SadServers Wall of Love

Hola ! I'm using your website to prep for my Meta Production Engineering interviews (the link was actually included in the prep guide they give us). This is such a great website that makes learning so fun and simple ! Thank you for spending time on this ! 10/10 value added product

I’ve always wanted hands-on experience with real-world debugging scenarios and to feel more confident navigating linux. This platform delivers exactly that!

Great way to flex skills I don't always get to practice! Keeps me fresh and my mind sharp. I run scenarios every morning with my coffee like a crossword to get me going for the day!

thanks a lot :) very useful and interesting yes I would recommend to every of my devops friends of course :)

I love SadServers! It has variety of real world problems at various difficulty levels that can help people learn the art of debugging! I always recommend it whenever any Devops/SREs ask me for some resources. Keep up the good work! Much Love ❤️

Sadservers presents excellent puzzles for the experienced devOps engineer, and provides a fantastic learning environment for inexperienced learners looking to get practical experience. 10/10 get leet skillz

Es mi primer contacto. El concepto me parece INCREIBLE. Soy estudiante y voy a registrarme y utilizar mas a fondo SADSERVER. Me gustan los nuevos conocimientos por medio de ejemplos reales mas prácticos que teóricos.

Fue superdivertido el reto. Nunca había hecho retos de este tipo y tampoco he tenido mucho tiempo entre charla y charla de nerdearla pero ha sido supersatisfactorio resolverlo. Mil gracias!

I loved how I could dive into the terminal and start solving problems in less than a minute.

Fantastic resource for anyone learning Linux.

This is so cool! Thank you for enriching the Linux community through this neat exercise!

Great experience in troubleshooting

The issues were very good designed.

thats amazing. i really love the simplicity and fact that this tasks are purely practical. love u

hermoso, me meti a ver que era y no se si decir que era :D, gracias por el sitio es muy divertido.

Algo de verdad muy bueno para aprender y manejar servidores Linux, recomendado, porfavor apoyen este proyecto

This was incredibly fun. I want to learn Linux administration beyond what is needed in my day to day work and having random problems pop up in front of you is a very nice way of doing that. The hint system also ensures I never get fully stuck. Also: Yay, fireworks

This is Awesome!!

great!!! im learning a lot :)

I love it!!

great idea

Extremely based!

This is pretty fun!

Sadservers is fun

Descubrimiento de hoy para mejorar las habilidades de administración de servidores linux a base de cabezazos. @sadservers_com te ofrece retos de troubleshooting para nosotros los chicos de sistemas. ¡¡¡¡Recomendable!!!! sadservers.com P.D.: No vale romper el PC

I just stumbled upon SadServers, and it's a game-changer for anyone diving into SRE and DevOps! SadServers offers a unique opportunity for hands-on experience with Linux server troubleshooting, transforming theoretical learning into a practical, engaging process. I plan to post frequently on SRE, Observability, DevOps, and AI topics. Let’s embark on this tech adventure together! 🚀 And hey, please join the discussion and share your insights too. I'd love to hear about your experiences and learn with you!#SRE #DevOps #Linux #TechCommunity #ContinuousLearning #Observability #AI

I learned something new about Linux today thanks to sadservers.com/. I've never actually used the fuser command before. Sadservers is really cool if you haven't had the chance to check it out. Almost all my work is with desktop Linux, sadservers is a great next step.

Today I learned about @sadservers_com and my productivity may be going down for a while...

En el video de hoy ELECTROCUTO⚡️ estos problemas de @sadservers_com, cambiando fechas para validar certificados como un campeón 🏆 Video completo en youtu.be/ZO9tyaQuOoE

LeetCode for SRE sadservers.com/

SadServers, like LeetCode, but for improving debugging skills sadservers.com/scenarios Log Parsing Cheat Sheet GREP CUT SED AWK SORT UNIQ How Big Tech Ships Code to Production youtu.be/xSPA2yBgDgA?si=I... open.substack.com/pub/byt...

Vos AdminSys s'ennuient ? Maintenez-les occupés avec cette activité sur mesure ! Nous n'avons pas de serveur triste dans notre infra donc on se défoule sur sad servers. (p) sadservers.com/

Aspiring devops engineers in your spare time make @sadservers_com and other command line games your games. It helps. What other one do you know? Recommend it below

Eh estado realizando Troubleshooting de SRE/DevOps en la página de SadServer, me pareció interesante el problema de "Minneapolis": Break a CSV file por lo que hice un artículo con la solución de este problema. la pagina con el problema de SadServer: lnkd.in/gBfqaPxW

Super indico SadServers para quem gosta de  testar suas habilidades de debbug em ambientes Linux. Me divertindo muito, sempre que tenho tempo.

@sadservers_com how do engineers learn from production Incidents?

Hoje resolvi meu primeiro desafio de Linux na plataforma SadServers. Pra quem não conhece, ela oferece problemas a serem resolvidos em um servidor real, de forma totalmente prática, isso foi o que mais me chamou atenção. Resolvi um desafio muito básico, ótimo para quem, assim como eu, está iniciando a jornada no Linux. Até o momento existem 41 desafios no total, divididos em 3 níveis. Muito interessante!

Like LeetCode, but for improving debugging skills. SadServers is similar to LeetCode but focuses on improving debugging skills. Something will be even more useful for working developers, not only for interviews. Thanks to Fernando Duran. lnkd.in/gYJdxmDe #SadServers #LeetCode #debugging #developerskills

sadservers.com homie!

I had trouble really learning Linux. Even by using it as my daily I didn’t have any real use cases to dig in deep. Someone on the sysadmin subreddit suggested Sadservers.com and I’ve been using that to really dig into it in ways you might actually see in a production environment.

Senior SRE here. Start with absolute Linux fundamentals via a free online course or YouTube tutorials (preferably with command line access) Then move on to this link below : github.com/mxssl/sre-inte... For some troubleshooting skills , visit sadservers.com and try your hand at basic ones to start with. If you're a CS undergrad, brush up your skills in Python. If not , start via online tutorials with command like access

sadservers.com is probably the best match for your inquiry

playbook.one2n.in/sre-boo... sadservers.com/ Literally these two. For the hands on. Fundamentals - OS , Networks and Databases - Udemy Courses by Hussein Nasser SRE Philosophy - github.com/dastergon/awes... is good enough

There will be coding but the equivalent is live troubleshottong a server or linux/networking questios. Check out this website sadservers.com/

I know it’s not windows, but if you want to learn some Linux, there is sadservers.com/. It will give you a task to complete on a real server, or something that’s broken. Then you figure out how to debug it and fix it! I’m not sure if there’s an equivalent Windows site, but that may get you started. To learn more about troubleshooting, you could look up SRE blogs and post-mortems. There’s a lot of systems design that is agnostic, and it wouldn’t hurt to find some cloud based examples.

Assuming you're interested in working with Linux, both OverTheWire and SadServers provide solid, premade lab exercises. In the case of OverTheWire, these kinds of challenges are known as "Capture the Flag", which may help in your search. Another popular CTF site (paid) is HackTheBox, but I've never used it and can't personally vouch for it. overthewire.org/wargames/ sadservers.com/scenarios www.hackthebox.com/

Encyclopedic knowledge help but don't make you a good administrator. After some basics questions about GNU/Linux we dig into the projects exposed in it's resume. We ask questions about how the candidat did resolve the problem. Finally we propose a live session with [sadservers.com](sadservers.com) on a medium difficulty problem to our candidats. We can analyze the methodology and the practice.

sadservers.com/ This could be useful. I tried a few of them, it's fairly realistic.

Sadservers.com. (Found this just the other day in another subreddit and it is awesome)

I don't think "random issue troubleshooting" is great prep, but [sadservers.com/](https://... fits the bill for what you're asking for.

sadservers.com is fun, it spins up real Linux instances and give you a problem to solve within the time limit.

Deepen your linux troubleshooting knowledge. Struggling through this helped me through an interview with fintech top 50: sadservers.com/scenarios

Finally i have found a place to test and practice troubleshooting Linux. This site is doing great with these exercise.

Really helped me get the hand-on experience I need to learn and refresh my knowledge before a technical interview!!!

i think this website is world best site to practice the linux and real world problem which occur in day to day task

One of the best way to practice some of your skills

My first experiment and I love it. If you are reading this, stay tuned because I am going to give regular feedbacks on my evolution.

very good

This is one of the best website that i had come across, I really enjoy the statements and tasks, it feels like going through a game under the time period you are performing any activity here.

This is way more interesting than learning from tutorials. Finally found a good learning platform for me to learn about Linux servers and DevOps skills to further improve my skill set and career opportunity!

nice test to improve my skill

This is incredible!!

Amazing build and platform! I will definitely share with my own students and use myself. I love how you built this! What an inspiration! It's like KodeKloud but way better in making sure you do the work, not just copy and pasting!

I prefer to take my free times to solve the scenarios , It makes me happy

this is so good. i spent 8 days on cadiz in between exams. was pain and torture and i cried a bit but i did it and even made a script to automate it. worth every second if you love being desperate enough to ask for a clue and being told there is no clue because no one solved it yet

good

мне очень понравилось приложение. Сценарии конечно нереалистичные, но замысловатые, и они очень помогают натренировать руки при работе с терминалом - ты начинаешь прямо чувствовать систему

I've been using SadServers as part of my hands-on DevOps learning path, and it's honestly one of the best tools I've found for building real troubleshooting instincts. SadServers drops you into an actual broken environment and makes you diagnose and fix it yourself. That's exactly the kind of pressure-tested practice that sticks.

its super cool , im lovin it sooo much

This is so freakin fun and awesom 10/10 recommend.

I find sad server very good to learn more about troubleshooting real world scenarios. Thank you so much for making this possible

This is just awesome. I am getting started self-hosting a few services. And this is the best way I found to learn how to debug it when it fails (because it will)

You can't apply command knowledge to real-world work just by studying it theoretically, so learning by doing is fantastic. This is an incredible website!

I like the scenarios very well and the time provided is also good enough to think. Its helping me well.

It was really challenging but made me learn a lot

I thought first that I got it, but naah... there is always twist and turns

i have played overthewire bandit challenges and i was looking for same thing for building my bash and linux admin skills. This is great stuff

Thanks for this gift to developer society a great place to come back to learn and enjoy coding.

SadServers is honestly one of the best ways to practice Linux and DevOps. The scenarios feel like real problems rather than typical tutorials, and they actually make you think and debug things yourself. I’ve learned a lot from working through them and would definitely recommend it to anyone interested in systems or DevOps.

This is the first time I use SadServer. Great experience, really enjoy it, and very valuable for practicing

I just solved my first scenario and it really entertained me! Love the website

i love it, i found you on reddit trough another user and tried it, it was super easy to just start, i opened the website requested a sadserver and it just worked, super idea to make such puzzles and perfect execution. 10/10 would recommend

Making servers happy is a delight that I'm enjoying thanks to the amazing experience of sadservers.com

i solver my first sadserver problem i like it thnx for making such things to practice

Amazing websites , see only studying theory is not sufficient when we are actually debugging the issue , the real knowledge come to us I am very happy to have you

I have to say, sad servers is a very nice way to learn basic and advanced troubleshooting. I use it sometimes to challenge myself when the everyday MSP work gets to boring.

Finished the 3rd SadServers challenge: The Command Line Murders 🗡️

This scenario is set up as a murder mystery you solve entirely through the terminal. Clues are scattered across files for people, streets, vehicles, and interview transcripts where I used familiar commands like grep, head, tail, and awk.

I was familiar with using these commands, but this challenge pushed me to explore different ways of using them. For example, I used grep with the options -B and -A to print the context before and after a matching line, and awk 'FNR == 179' to jump straight to line 179 of a particular file. I've documented my notes and solution to this challenge in 01-linux/labs/sadservers on Github: lnkd.in/eNSKs5DM

Definitely the most fun way I've practised Linux commands so far, looking forward to working through more of these SadServers lab exercises.

Awesome approach to hands on learning.

If you’re looking for the DevOps/SRE equivalent of a LeetCode challenge, I highly recommend checking out SadServers. I recently tackled the "Saint John: what is writing to this log file" troubleshooting scenario. It’s a fantastic, hands-on exercise for sharpening real-world Linux diagnostics and system observability skills.

Quick troubleshooting highlight:
After identifying and terminating the culprit, I used a quick sleep interval to monitor the log file and verify its size had stopped growing, confirming the correct process was dead.

Example: ls -l /var/log/bad.log; sleep 5; ls -l /var/log/bad.log

Great platform for anyone in the DevOps, Platform Engineering, or Kubernetes space 😉 looking to test their problem-solving under pressure.

Check it out here: SadServers.com
#DevOps #SRE #PlatformEngineering #Linux #Troubleshooting

I’m a system administrator and I don’t know Linux. Even basic Linux. I’ve been skating by for 15 years. I didn’t know any of these commands, but now I feel like an expert. I’m not sure any I wanted to F the User but it doesn’t matter. I’m a master now.

very good website tp learn devops

This is an amazing service that can really teach and test all system administrators skills. You are providing a way for people to do their jobs correctly and keep infrastructure running. This is a service to humanity and I seriously hope you monetize soon.

I'm new to DevOps, and I needed some practice, and this was the best I've found. Seriously, it's absolutely amazing. Unfortunately, I live in Russia and can't afford a pro subscription, but if I had the opportunity, I absolutely would.

This is so nice, getting the real life use cases to do for practice.

The best and only way to learn real linux administration.

In fact its really really nice for learning :) Many thanks for this one!!

I discovered SadServers by accident. I run my own stuff, self-hosted, so I do get some practice putting out my own fires, but it's nice to have other fires besides my own!

Awesome ! It Was amazing for my learning

Super

hi! thank you for this amazing idea and service!

This has been a very fun way to learn to use linux terminal commands! it works super well and im loving it. thank you so much

It is cool idea. From phone or is not so convenient, but from PC would be really great. Thank you!

Solved My First Production-Style Linux Crisis in Under 5 Minutes.


Just completed a real-world troubleshooting scenario on SadServers (a platform for hands-on Linux challenges).

Here the challenge is that, A rogue process was continuously writing to a log file (/var/log/bad.log),

filling up disk space and threatening system stability.

So my duty was to find and terminate it without deleting the file.

And Here is my Approach.

First, I have to check for the hostname, pwd, whoami and uname to be sure I'm in the correct place.

Then, I went on to Identify the log file being written to by using process monitoring to find the culprit,

Terminated the process safely,

And Verified the fix.

All these happened within 4 minutes, 17 seconds.

Why this matters:
This exact scenario happens in production environments when:

Test programs get left running,

Misconfigured apps spam logs,

Memory leaks cause runaway processes.

And Being able to diagnose and fix these issues quickly prevents:

❌ Server crashing
❌ Service downtime
❌ Lost revenue
❌ Angry customers

So never underestimate any issue or sign even if the smallest of it, because the impact might be so huge than you expect.

What production problem are you currently facing in your organisation?

#Linux #SysAdmin #Troubleshooting #Cloudsecurity

so good

Working through the Sad Servers challenges has been a fun way to sharpen my Linux troubleshooting skills in a hands-on environment.
Each scenario simulates real-world production issues — from runaway processes to misconfigured services — and the goal is simple: investigate, understand what’s happening under the hood, and fix it.
It’s a great reminder that in Linux, good debugging often comes down to curiosity, careful observation, and knowing where to look.
Slowly working through the levels and documenting what I learn along the way.
#Linux #DevOps #SRE #Troubleshooting #SadServers

lnkd.in/dqXyVnHT

Preparing for an upcoming Job as a IT technician, this is an absolutely incredible tool!

Ever wanted to practice Linux and Kubernetes debugging but never knew how to start? Check out SadServers (sadservers.com) , real Linux servers with broken stuff you need to fix.

Perfect for SREs and anyone who likes figuring out what went wrong with disk, IO, memory, network etc..

No need to setup anything, just runs in your browser.
Its like a mini escape room for devs.

#SRE #Linux #DevOps

Thank you guys, for the work you do. Labs really help me to keep my dubbing skills at a high level. Labs are similar to situations I'am encountering in some production environments where time, focus, and knowledge are the keys !!!

Here's what 6 years in production taught me at troubleshooting as a DevOps.

Processes. Sockets. Memory pressure. DNS resolution. The engineers who stay calm during incidents aren't the ones who know the most tools.
They're the ones who know what questions to ask the system.
Most people spend 3 months on tutorials. 2 days of real broken servers beats that every time.

→ SadServers → Linux fundamentals + CLI muscle. Fix them. Exactly what Senior interviews. sadservers.com

→ OverTheWire: Bandit — builds the CLI thinking pattern that actually matters. lnkd.in/eEGSc7kd

Both free. Both brutal. Both worth it.

The market is brutal right now. But engineers who understand why things break are never unemployed long.
Where are you stuck — fundamentals or chasing tools? Drop it below.

#DevOps #Linux #Kubernetes #SRE #CareerAdvice #LearnInPublic #GitOps #CloudOps #IaC #BreakIntoTech #DevOpsCommunity #PlatformEngineering #CloudNative #Web3 #Troubleshooting

I’ve been using SadServers to sharpen my Linux server skills, and it’s been excellent. The scenarios feel realistic, not contrived, and they force you to think like an operator under pressure. It’s hands-on, practical, and way more engaging than passive tutorials. Highly recommended for anyone serious about leveling up their Linux troubleshooting skills.

daaamn the site is sooo useful and cool

Just found SadServers and it’s exactly what I wish existed when I was learning Linux the “real” way, plus, it's completely 🆓.

It’s basically LeetCode for Linux & DevOps troubleshooting 💻: you’re dropped into live servers with realistic incidents, and you have to diagnose + fix issues using real sysadmin/DevOps skills (logs, processes, networking, permissions, services, etc.). 🔍⚙️🌐

What I like most: the hint system keeps you moving without just handing you the answer. 💡✅

If you’re prepping for cloud/DevOps interviews or you want sharper on-call instincts, this is seriously solid practice.

👉 sadservers.com/

love you

C’est ce site qui m’a littéralement appris a faire de l’admin sys linux, c’est une pepite

Thanks to these tasks I believe I'll become a confident Linux user!

this website is absolutely superb for real-time scenarios practise

The scenarios, problem and clues are well organized. A good learning tool.

It's really helpful.

so far very good and intuitive questions. the scenarios do resemble real-life scenarios. kudos !

good