The maximum File Size that i could transferred by RDP Clipboard from local PC with the BeyondTrust PRA Console to the Endpoint was: 4’294’967’295 bytes. This is the size in Bytes like ( 1024^3 x 4 ) – 1 Bytes or 4’194’304 KB or 3.99 GB.
You can test this by yourself when you create a testfile with Microsoft fsutil commands.
fsutil file createnew test4GB-1.txt 4294967295 -> this File could be transferred from the console to the endpoint.
fsutil file createnew test4GB-0.txt 4294967296 -> it was not possible to transfer this file from the console to the endpoint.
4’294’967’295 is also the maximum File Size by an RDP Restriction:
If the RDP Flag «CB_HUGE_FILE_SUPPORT_ENABLED» is not set, then only files of size less than or equal to 4,294,967,295 bytes are supported.
This is not a BeyondTrust PRA or BeyondTrust RS restriction. The restriction comes from Microsoft Clipboard Capabilities PDU in the current RDP Protocol.
Author: MICRODYN AG – Rolf Hahn / 26.09.2020
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