# SadServers/sadservers

SadServers: Linux & DevOps Troubleshooting Scenarios SaaS

Repository: https://github.com/SadServers/sadservers
Canonical: https://ross.abutalabs.com/products/sadservers
Homepage: https://sadservers.com
Language: HCL
License Family: other
Topics: devops, interview-practice, interview-preparation, interview-test, linux, sre-infra, troubleshooting
Last push: 2026-08-13T15:45:50+00:00

## Health v2 (maintenance only)
Score: 76/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 97, release rhythm 35, longevity 100
- inputs: {"age_days": 1488, "days_push": 20, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2972, forks 116 (observed 2026-08-28T04:07:32.820572+00:00)

## What it is
SadServers is a SaaS platform for practicing Linux and DevOps troubleshooting skills on real ephemeral Linux servers in a Capture-the-Flag format, with browser-based SSH access and automated solution checks. It also serves as a hands-on assessment tool for organizations evaluating candidates for Linux, DevOps, and SRE roles.

## Use cases
- practice linux troubleshooting on real servers
- prepare for devops or sre interview
- assess candidates for linux sysadmin jobs
- learn to debug broken docker and kubernetes deployments
- hands-on capture the flag challenges for linux
- train incident troubleshooting skills
- run technical interviews with real infra tasks

## When to choose
- you want hands-on practice fixing realistic broken Linux servers rather than reading tutorials
- you need to evaluate candidates with practical Linux/DevOps/SRE troubleshooting tasks
- you want CTF-style challenges covering databases, web servers, Docker, and Kubernetes
- you prefer browser-based ephemeral VMs with automated solution verification

## When to avoid
- you need a fully self-hosted open-source lab platform - this is a commercial SaaS with no license on the code
- you are looking for passive learning like video courses or multiple-choice quizzes
- you need Windows or macOS troubleshooting practice - scenarios focus on Linux
- you require offline practice without internet access or cloud-provisioned VMs

## Facets
- artifact type: service
- maturity: active
- function: developer-tools, testing, e2e-testing, cli, self-hosted
- domain: education, developer-tools, operating-systems
- platform: cloud, self-hosted
- tags: capture-the-flag, sre, troubleshooting, interview-assessment, hands-on-labs, learning-platform, scenario-based-training, devops, command-line, linux, web-server, docker, kubernetes

## Member repositories
- SadServers/sadservers (main) score 76

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:07:32.820572+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:31:37.651394+00:00, confidence not recorded.
  - readme: https://github.com/SadServers/sadservers (fetched 2026-08-28T04:07:32.820572+00:00, sha 24421af7699c)
  - homepage: https://sadservers.com (fetched 2026-08-29T09:47:09.500317+00:00, sha a9302adee598)
  - site_page: https://docs.sadservers.com/docs/support (fetched 2026-08-29T09:47:09.506599+00:00, sha fe7ac3e4f24f)
  - site_page: https://docs.sadservers.com/docs/pro (fetched 2026-08-29T09:47:09.508304+00:00, sha 4b3cfb38752f)
  - site_page: https://docs.sadservers.com/docs/proplus (fetched 2026-08-29T09:47:09.509955+00:00, sha 130c3e15041d)
  - site_page: https://docs.sadservers.com/docs/business (fetched 2026-08-29T09:47:09.511471+00:00, sha 5d0a62ce8889)
  - site_page: https://docs.sadservers.com/docs/gift (fetched 2026-08-29T09:47:09.513220+00:00, sha b8fe6c85edca)
  - site_page: https://docs.sadservers.com/docs/api (fetched 2026-08-29T09:47:09.514790+00:00, sha 937224ccfc17)
  - site_page: https://docs.sadservers.com/docs/cli-tui (fetched 2026-08-29T09:47:09.516658+00:00, sha c738b3dc7f62)
  - site_page: https://sadservers.com/faq (fetched 2026-08-29T09:47:09.503248+00:00, sha 72becfb5b3a8)
- Data as of 2026-08-30T08:39:29.467469+00:00.