NAME

       traffic_via - Traffic Server Via header decoder

SYNOPSIS

       traffic_via [OPTIONS] [VIA ...]

DESCRIPTION

       traffic_via decodes the Traffic Server Via header codes.  Via header strings are passed as
       command-line options. The enclosing square brackets are optional.

       If the argument is '-', traffic_via will filter standard input for Via headers. This modes
       supports only supports Via headers that are enclosed by square brackets.

OPTIONS

       -h, --help
              Print usage information and exit.

       -V, --version
              Print version.

EXAMPLES

       Decode the Via header from command-line arguments:

          $ traffic_via "[uScMsEf p eC:t cCMp sF]"
          Via header is [uScMsEf p eC:t cCMp sF], Length is 22
          Via Header Details:
          Request headers received from client                   :simple request (not conditional)
          Result of Traffic Server cache lookup for URL          :miss (a cache "MISS")
          Response information received from origin server       :error in response
          Result of document write-to-cache:                     :no cache write performed
          Proxy operation result                                 :unknown
          Error codes (if any)                                   :connection to server failed
          Tunnel info                                            :no tunneling
          Cache Type                                             :cache
          Cache Lookup Result                                    :cache miss (url not in cache)
          Parent proxy connection status                         :no parent proxy or unknown
          Origin server connection status                        :connection open failed

       Decode the Via header from a curl request, using the X-Debug plugin:

          $ curl -H  "X-Debug: Via" -I http://test.example.com | traffic_via -
          Via header is uScMsSf pSeN:t cCMi p sS, Length is 24
          Via Header Details:
          Request headers received from client                   :simple request (not conditional)
          Result of Traffic Server cache lookup for URL          :miss (a cache "MISS")
          Response information received from origin server       :connection opened successfully
          Result of document write-to-cache:                     :no cache write performed
          Proxy operation result                                 :served or connection opened successfully
          Error codes (if any)                                   :no error
          Tunnel info                                            :no tunneling
          Cache Type                                             :cache
          Cache Lookup Result                                    :cache miss (url not in cache)
          Parent proxy connection status                         :no parent proxy or unknown
          Origin server connection status                        :connection opened successfully

COPYRIGHT

       2023, dev@trafficserver.apache.org