ANSWER
How do I verify a VNISH firmware download?
Short answerCompute the SHA-256 of the downloaded archive and compare it with the published value for that exact file in the VNISH GLOBAL catalog. Compare all 64 hexadecimal characters; uppercase and lowercase letters represent the same hash.
Three steps to check the file
- Choose the matching catalog entry. Open your exact model in the firmware catalog. Match the control board, version and archive filename, then copy that file’s published SHA-256.
- Compute the hash of the archive. Open the full SHA-256 guide for Windows, macOS and Linux. Replace its example filename with the exact name of your downloaded archive, keeping the quotes. Check the archive itself, without extracting it.
- Compare the results. Compare only the 64-character hash, without output labels, the filename or surrounding spaces. Ignore letter case. A match confirms file correspondence; check installation conditions separately. If it differs, check that you chose the same archive and version, then download that package again. Do not install a mismatching file.
If the mismatch persists, use the security contact below and provide the build ID and both hash values. Do not send credentials.
Full instructions and catalog