Learn by FixingInstant DevOps Labs: Hands-On & Free! π
Get 15 minutes of real Linux environment practice with genuine scenarios.
No signup. No email. No credit card required.
New features are here! π
Weβve just launched two highly requested improvements:
- Skill-level filtering in Scenarios: find the right challenges for you.
- GitHub login support: seamless access using your GitHub account.
Ready to dive in and get hands-on? https://www.learnbyfixing.com/scenarios/
New scenario released! π
Your challenge: reload the configuration of a containerized app without restarting the Docker container.
Sounds easy? Not so much when the container uses a distroless image (no shell, no debugging tools).
This scenario walks you through how to do it: https://www.learnbyfixing.com/scenarios/16/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers
We have just expanded the Environment Variables guide to include their use in Docker containers:
https://www.learnbyfixing.com/guides/environment-variables/
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers #EnvironmentVariables
New scenario released! π
You have a verbose Docker container.
Your challenge: make it log ERROR messages only without modifying the image.
In this scenario, youβll learn how to control container behavior using environment variables.
Sharpen your Docker skills and try it now:
https://www.learnbyfixing.com/scenarios/15/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #Docker #Containers
New free guide released: System calls and strace! π
Do you want to troubleshoot Linux like a pro? Our latest free guide shows you how to inspect system calls using strace, a must-have tool for every SysAdmin, SRE and DevOps engineer.
https://www.learnbyfixing.com/guides/system-calls-and-strace/
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
New scenario released! π
Port already taken? But which one?
In this scenario, youβll learn how to:
- Identify which port a program needs to listen on.
- Track down the process that's already listening on that port.
Level up your Linux troubleshooting skills and dive in now!
https://www.learnbyfixing.com/scenarios/14/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
New scenario released! π
Having the config file for a program is not enough. You also need to put it in the right place so that the program can find it. But it's not that easy when you don't know where the program is looking for its config file!
Check it out and level up your troubleshooting skills: https://www.learnbyfixing.com/scenarios/13/
Happy fixing!
#LearnByFixing #Linux #DevOps #SRE #Sysadmin #syscalls #strace
New scenario released! π
https://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
We are excited to announce the official launch of Learn by Fixing! π
Ready to try it? https://www.learnbyfixing.com
Happy fixing!