Troubleshoot and Make Sad Servers Happy!

"Like LeetCode for Linux"

Capture The Flag challenges.

Practice for your next SRE/DevOps interview.

Train and prove your debugging skills.

Get a full remote Linux server with a problem and fix it!

Since launch, 425,109 servers have been created.


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Updated: 2025-03-29 22:35 UTC – 1c77809