I’m researching whether it is possible to have sidecar or graylog save a copy of the raw message stream to a local disk. The idea is to have various sources using sidecar and syslog push to either a middle log depot machine which will store the logs to a longer retention than is possible on the application boxes and then from there push to graylog/ES for indexing and searching. I know that syslog can save a copy of anything it receives from a TCP/UDP input. Can sidecar be configured in the same way? If not, can graylog be configured to save the messages coming in in the original format?