When I copy a local file and paste it to a remote computer through an RDP session (both clients are Windows 7) is it transferring the file data via SMB, SFTP, or some other protocol/port? I’ve poked around the RDP GUI and don’t see any clear reference to clipboard transfer protocols or ports. Just curious.
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RDP is its own protocol, and clipboard sharing is provided by it.
From the Remote Desktop Protocol spec:
You can also get a full paper on the RDP protocol from MSDN here. The PDF describes the protocol in terms of the bare-bones protocol, the archive of PDFs supplies papers for the individual services that sit on top of it.