Tools
Free IT Troubleshooting Tools
Free IT troubleshooting tools turn the output you already have into a focused explanation. Choose the problem, paste the relevant text, and verify the suggested next step.
What Does This dig Output Mean?
Paste dig output to understand the response status, flags, answer sections, recursion behavior, and the next useful check.
LinuxWhy Did My systemd Service Fail?
Paste systemctl status or journal output to identify execution, identity, path, permission, and restart-loop failures.
ContainersWhy Won't My Docker Container Start?
Paste a Docker or Compose error to distinguish entrypoint, architecture, mount, port, resource, and daemon problems.
Web and TLSWhy Is cURL Failing This HTTPS Request?
Paste verbose cURL output to separate DNS, TCP, proxy, certificate, TLS handshake, timeout, and server-response failures.
Remote accessWhy Is My SSH Connection Failing?
Paste ssh -vvv output to locate the failure across name resolution, transport, key exchange, host verification, and authentication.
Runs in your browser
Pasted diagnostic output is analyzed locally. It is not sent to this website.
Explains the failed stage
Each result separates the likely blocker from secondary messages and symptoms.
Suggests checks, not guesses
Commands are designed to confirm the cause before you change production settings.