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Accepted
Kyle Brandt
Asked: 2010-06-29 08:07:21 +0800 CST

Remote Desktop from Linux to Computer that Requires Network Level Authentication

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Is there a way to use rdesktop or another Linux client to connect to a server that requires Network Level Authentication?

From Windows Server 2008 R2 -- Control Panel -- System And Security -- System -- Allow Remote Access there is an option that says "Allow connections only from computers running Remote Desktop with Network Level Authentication". So with this enabled I can con not connect from Linux. I can connect from XP but you need SP3 and I had to edit a couple of things in the registry for it to work.

linux remote-desktop rdp

4 Answers

  1. Best Answer

    FreeRDP (a spin-off from rdesktop) supports this in recent versions.

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  2. Sadly, I dont know if you are going to have much luck. I had to disable NLA to get our linux thinclients to connect when I was setting this up a year ago as I could not find any support for it in linux

    Looking on sourceforge for rdesktop I see a feature request for it that is still open and some posts from 2009 with people asking for support.

    http://sourceforge.net/tracker/index.php?func=detail&aid=1773895&group_id=24366&atid=381350

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  3. Remmina which appears to be FreeRDP-based, negotiates the right settings (for me, connecting to a Windows 7 machine which requires NLA) out of the box.

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  4. rdesktop v1.7.0 has various fixes (probably the same as the recent FreeRDP version) for RDP 6.0 / RDP 6.1 (Windows 7 / 2008) compatibility problems.

    See the changelog: http://sourceforge.net/projects/rdesktop/files/rdesktop/1.7.0/

    • Improved support for Windows 2008 Session Broker
    • Windows 2008 R2 / 7: Fix sound playback when not using other redirections
    • Windows 2008 R2 / 7: Solve disk redirection read-only issues
    • Windows 2008 R2 / 7: Solve issue with recursive deletion

    But NLA (Network Level Authentication) is still not supported.

    As for FreeRDP, only the release notes of v0.7.1 mentions it in the "work in progress" section: "Network Level Authentication is half-way done (TLS works, but NTLM authentication is partially implemented)"

    Release notes of the following versions do not even mention it. Thus it's probably still in the same "half-way done" state.

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