Registered to Doceri's screencasting/whiteboard product — a control channel for a tool that is effectively gone.
IANA registered 7019 in April 2011 as doceri-ctl on TCP ("doceri drawing service control") and doceri-view on UDP ("doceri drawing service screen view"). Doceri was an iPad interactive-whiteboard and screencasting product with a companion desktop agent, so the TCP side carried tablet-to-desktop control and the UDP side the screen feed. The vendor's site no longer answers, and the product appears defunct, so a listener on 7019 today is far more likely to be an unrelated application that picked the number than a Doceri install.
Expose with care
Remote screen control on an abandoned, unpatched product is not something to expose; confirm what is actually listening before treating this as Doceri at all.
$ nc -vz TARGET 7019Seen this on your network? Beige Box scans your Wi-Fi and shows every open port on every device — and its Ports tool links straight back here.
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Corrections or a missing port? Reply @rimrocksystems.