Having recently encountered a very old Windows NT 4.0 terminal server that is still in use, working off-site, and having to do remote support, it has become necessary to use this really old system at times. A variety of Windows and Linux systems are available for use, but it has become apparent that most Windows images I have available (Windows XP SP3 and up) don't support connecting to the Windows NT 4.0 Terminal Server.
Right now, the way the Windows NT 4.0 terminal server is accessed, one RDPs into a Windows XP SP3 system that has a side-loaded copy of the RDP 5.1 client .exe and .dll files. Then, from there, one connects to the NT 4.0 Terminal Server. For me, this means making a double RDP hop.
One might really like to be able to directly RDP to either the NT 4.0 system or XP SP3 system as needed without having to go through the old RDP client on the specially configured XP SP3 box to get to the NT 4.0 system.
To make the solution even better, it would be ideal to do this from Linux instead of Windows. A fair number of on-line posts that say modern RDP clients don't do this, but it would be nice to think that's not entirely true even if mostly true.
Freerdp w/ Remmina works fine for connecting to the XP SP3 box, but not for the NT 4.0 box.
Is there an RDP solution for Linux that still supports RDP 4.x connections?