[GitHub] trafficserver issue #1584: More detailed 5xx errors

[mlibbey <gi...@git.apache.org>]

GitHub user mlibbey opened an issue:

    https://github.com/apache/trafficserver/issues/1584

    More detailed 5xx errors

    Cloudflare has made some very useful 5xx errors for troubleshooting. From wikipedia:
    - 520 Unknown Error: The 520 error is used as a "catch-all response for when the origin server returns something unexpected", listing connection resets, large headers, and empty or invalid responses as common triggers.
    - 521 Web Server Is Down: The origin server has refused the connection from Cloudflare.
    - 522 Connection Timed Out: Cloudflare could not negotiate a TCP handshake with the origin server.
    - 523 Origin Is Unreachable: Cloudflare could not reach the origin server; for example, if the DNS records for the origin server are incorrect.
    - 524 A Timeout Occurred:Cloudflare was able to complete a TCP connection to the origin server, but did not receive a timely HTTP response.
    - 525 SSL Handshake Failed: Cloudflare could not negotiate a SSL/TLS handshake with the origin server.
    - 526 Invalid SSL Certificate: Cloudflare could not validate the SSL/TLS certificate that the origin server presented.
    


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