www.learnbyfixing.com
Dive into our hands-on troubleshooting scenarios and help shape the platform with your feedback.
#LearnByFixing #Linux #DevOps #SRE #Troubleshooting
www.learnbyfixing.com
Dive into our hands-on troubleshooting scenarios and help shape the platform with your feedback.
#LearnByFixing #Linux #DevOps #SRE #Troubleshooting
Do you want to troubleshoot Linux like a pro? Our latest guide shows you how to inspect system calls using strace, a must-have tool for every SysAdmin, SRE and DevOps engineer.
www.learnbyfixing.com/guides/syste...
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #strace
Do you want to troubleshoot Linux like a pro? Our latest guide shows you how to inspect system calls using strace, a must-have tool for every SysAdmin, SRE and DevOps engineer.
www.learnbyfixing.com/guides/syste...
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #strace
www.learnbyfixing.com/scenarios/12/
Imagine you don't know how to quit vi / vim / neovim .
Figure out how to exit without using any vi commands.
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #vi #vim #neovim
www.learnbyfixing.com/scenarios/12/
Imagine you don't know how to quit vi / vim / neovim .
Figure out how to exit without using any vi commands.
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #vi #vim #neovim
You can find our new Kubernetes Troubleshooting Roadmap here:
www.learnbyfixing.com/roadmaps/kub...
It's still a work in progress, but it already has a few scenarios to practice.
#LearnByFixing #DevOps #SRE #kubernetes #k8s
You can find our new Kubernetes Troubleshooting Roadmap here:
www.learnbyfixing.com/roadmaps/kub...
It's still a work in progress, but it already has a few scenarios to practice.
#LearnByFixing #DevOps #SRE #kubernetes #k8s
🎯 These concise guides provide just the key insights you need to grasp each concept quickly.
👉 Start learning now: www.learnbyfixing.com/guides/
#LearnByFixing #Linux #DevOps #SRE #FreeLearning
🎯 These concise guides provide just the key insights you need to grasp each concept quickly.
👉 Start learning now: www.learnbyfixing.com/guides/
#LearnByFixing #Linux #DevOps #SRE #FreeLearning
We’ve just launched two highly requested improvements:
- Skill-level filtering in Scenarios
- Seamless access using your GitHub account
Ready to dive in and get hands-on? www.learnbyfixing.com/scenarios/
#LearnByFixing #DevOps #SRE #Sysadmin #Linux
We’ve just launched two highly requested improvements:
- Skill-level filtering in Scenarios
- Seamless access using your GitHub account
Ready to dive in and get hands-on? www.learnbyfixing.com/scenarios/
#LearnByFixing #DevOps #SRE #Sysadmin #Linux
In this scenario, you’ll learn how to:
- Identify which port a program needs to listen on.
- Track down the process that's already listening on that port.
www.learnbyfixing.com/scenarios/14/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
In this scenario, you’ll learn how to:
- Identify which port a program needs to listen on.
- Track down the process that's already listening on that port.
www.learnbyfixing.com/scenarios/14/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
Having the config file for a program is not enough. You also need to put it in the right place.
Check it out and level up your troubleshooting skills: www.learnbyfixing.com/scenarios/13/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
Having the config file for a program is not enough. You also need to put it in the right place.
Check it out and level up your troubleshooting skills: www.learnbyfixing.com/scenarios/13/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
Ready to try it? www.learnbyfixing.com
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin
Ready to try it? www.learnbyfixing.com
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin
A Docker image was built to deploy an app to production… but there’s a problem.
It's over 1 GB.
Your mission: optimize its size to be under 20 MB.
Can you fix it?
www.learnbyfixing.com/scenarios/17/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
A Docker image was built to deploy an app to production… but there’s a problem.
It's over 1 GB.
Your mission: optimize its size to be under 20 MB.
Can you fix it?
www.learnbyfixing.com/scenarios/17/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
✅ Redesigned UI
✅ Smoother navigation
✅ Easier to run commands & view outputs
Try them out now 👉 www.learnbyfixing.com
#LearnByFixing #Linux #DevOps #SRE #SysAdmin
✅ Redesigned UI
✅ Smoother navigation
✅ Easier to run commands & view outputs
Try them out now 👉 www.learnbyfixing.com
#LearnByFixing #Linux #DevOps #SRE #SysAdmin
- DNS resolution?
- Network connectivity?
- Rootless Docker misconfig?
- Or all three at once?
Most container issues aren’t where you think they are.
www.learnbyfixing.com/scenarios/20/
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
- DNS resolution?
- Network connectivity?
- Rootless Docker misconfig?
- Or all three at once?
Most container issues aren’t where you think they are.
www.learnbyfixing.com/scenarios/20/
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
It starts from a simple challenge, but every time you solve it, a new constraint is added, and you have to figure out another way to crack it.
www.learnbyfixing.com/guides/names...
#LearnByFixing #DevOps #SRE #Sysadmin #Docker #Linux
It starts from a simple challenge, but every time you solve it, a new constraint is added, and you have to figure out another way to crack it.
www.learnbyfixing.com/guides/names...
#LearnByFixing #DevOps #SRE #Sysadmin #Docker #Linux
www.learnbyfixing.com/guides/secco...
Seccomp reduces a container's attack surface by restricting the system calls a process can make.
If you work with containers, understanding seccomp is a valuable addition to your security toolbox.
#LearnByFixing #DevSecOps #Docker
www.learnbyfixing.com/guides/secco...
Seccomp reduces a container's attack surface by restricting the system calls a process can make.
If you work with containers, understanding seccomp is a valuable addition to your security toolbox.
#LearnByFixing #DevSecOps #Docker
www.learnbyfixing.com/roadmaps/doc...
It brings together practical guides and structured skill paths to sharpen your Docker debugging abilities.
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
www.learnbyfixing.com/roadmaps/doc...
It brings together practical guides and structured skill paths to sharpen your Docker debugging abilities.
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
No ports are exposed and the logs are unhelpful.
Right now, the application running inside the container is completely inaccessible.
Can you find and expose the port?
www.learnbyfixing.com/scenarios/21/
#LearnByFixing #Docker
No ports are exposed and the logs are unhelpful.
Right now, the application running inside the container is completely inaccessible.
Can you find and expose the port?
www.learnbyfixing.com/scenarios/21/
#LearnByFixing #Docker
Practice in real scenarios.
We’ve published a GitHub repository with descriptions of all our scenarios, allowing you to explore them and challenge yourself:
github.com/learnbyfixin...
Practice in real scenarios.
We’ve published a GitHub repository with descriptions of all our scenarios, allowing you to explore them and challenge yourself:
github.com/learnbyfixin...
An app was set up locally using Docker Compose... but it doesn't start.
It has 3 services: proxy, app and database.
Can you make it work?
www.learnbyfixing.com/scenarios/19/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
An app was set up locally using Docker Compose... but it doesn't start.
It has 3 services: proxy, app and database.
Can you make it work?
www.learnbyfixing.com/scenarios/19/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
You tried to start a containerized app, but it doesn't run.
A colleague says it works on their laptop.
Can you make it run without changing the app's code?
www.learnbyfixing.com/scenarios/18/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
You tried to start a containerized app, but it doesn't run.
A colleague says it works on their laptop.
Can you make it run without changing the app's code?
www.learnbyfixing.com/scenarios/18/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
Our labs are now real challenges, featuring:
- A "Check Solution" button
- Optional hints if you get stuck
- Full solution reveal when you're ready
www.learnbyfixing.com
#LearnByFixing #DevOps #SRE #Sysadmin #Linux #Docker
Our labs are now real challenges, featuring:
- A "Check Solution" button
- Optional hints if you get stuck
- Full solution reveal when you're ready
www.learnbyfixing.com
#LearnByFixing #DevOps #SRE #Sysadmin #Linux #Docker
Get 15 minutes of real Linux environment practice with genuine scenarios.
No signup. No email. No credit card required.
www.learnbyfixing.com
#LearnByFixing #DevOps #SRE #Sysadmin #Linux #Docker
Get 15 minutes of real Linux environment practice with genuine scenarios.
No signup. No email. No credit card required.
www.learnbyfixing.com
#LearnByFixing #DevOps #SRE #Sysadmin #Linux #Docker
Reload the configuration of a containerized app without restarting the Docker container.
Sounds easy? Not so much when the container uses a distroless image.
www.learnbyfixing.com/scenarios/16/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
Reload the configuration of a containerized app without restarting the Docker container.
Sounds easy? Not so much when the container uses a distroless image.
www.learnbyfixing.com/scenarios/16/
Happy fixing!
#LearnByFixing #DevOps #SRE #Sysadmin #Docker
www.learnbyfixing.com/guides/envir...
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers #EnvironmentVariables
www.learnbyfixing.com/guides/envir...
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers #EnvironmentVariables
You have a verbose Docker container.
Your challenge: make it log ERROR messages only without modifying the image.
Sharpen your Docker skills and try it now:
www.learnbyfixing.com/scenarios/15/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers
You have a verbose Docker container.
Your challenge: make it log ERROR messages only without modifying the image.
Sharpen your Docker skills and try it now:
www.learnbyfixing.com/scenarios/15/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers
Learn how pipes work and how to connect commands using them.
www.learnbyfixing.com/guides/pipes/
#LearnByFixing #linux #DevOps #shell #pipes
Learn how pipes work and how to connect commands using them.
www.learnbyfixing.com/guides/pipes/
#LearnByFixing #linux #DevOps #shell #pipes