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I want to connect via remote desktop to a Windows Server 2008 R2.

On the Windows server's remote desktop connection properties, it is set to "safer". Specifically, the selected option is "Allow connections only from computers running Remote Desktop with Network Level Authentication."

On my Ubuntu system, I tried using Remmina to connect to the Windows server. Remmina can not connect to that server with the option "Network Level Authentication" (as mentioned in the previous paragraph). The error message Remmina returns is as follows:

Disable the connection to the server RPD: IPWINDOWSSERVER2008

How can I connect Remmina (or another program) by remote desktop to a Windows Server 2008 host with the "Network Level Authentication" option selected?

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8 Answers 8

up vote 1 down vote accepted

I solved this issue by right clicking on the entry in Remmina, going to edit, clicking on the advanced tab, and then changing the security field to "RDP" from "Negotiate"

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I know this is old but I had same problem in 12.04 remmina and solution was setting security to RDP. I don't know why "auto" doesn't work.

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Sorry, but care to edit your answer and elaborate? –  Braiam Aug 29 '13 at 11:42

I set the security option to 'negotiate' instead of 'NLA' and directly got me connected. Before that I was not able to connect with proper credentials. Kept saying 'Wrong username or password' knowing the password was correct.

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I was unable to connect with remmina, finally tried freerdp from the command line:

xfreerdp [serverip]

I was prompted for my password, then received the message that the host key for this IP had changed. I deleted the known_hosts file (~.freerdp/known_hosts) and remmina was able to connect.

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I solved problem on 13.04 with setting TLS when connecting to Windows 2008 R2 Enterprise server. Auto-negotiation didn't work.

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When answering a question, please give a description of the steps you took to fix the problem, and as much information as you can offer. –  SimplySimon Sep 13 '13 at 10:39

Remmina uses FreeRDP for RDP connections, but it looks like Network Level Authentication support was just added to FreeRDP in version 1.0. The best option would be to upgrade to Ubuntu 12.04, which includes Remmina 1.0.

There's an updated version of remmina here, although I can't vouch for its stability: https://launchpad.net/~freerdp-team/+archive/freerdp

If that doesn't work, you might be able to connect directly:

  1. Install the above PPA
    sudo apt-add-repository ppa:freerdp-team/freerdp
  2. Install the freerdp package:
    sudo apt-get install freerdp
  3. xfreerdp --plugin cliprdr -g 1024x768 -k no -u {username} -d {domain-name} {target-machine}

I just ended up doing the latter, and creating an alias in ~/.bash_aliases:
alias rdp='xfreerdp --plugin cliprdr -g 1152x864 -k no -u username -d DOMAIN'

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When I tried it, FreeRDP worked with NLA and is in the Ubuntu 13.10 repositories. –  Firefeather Dec 16 '13 at 22:40

Have you tried using Wine?

DL this and run it on wine. (http://www.microsoft.com/downloads/details.aspx?FamilyID=80111F21-D48D-426E-96C2-08AA2BD23A49&displa)

http://appdb.winehq.org/objectManager.php?sClass=version&iId=22656

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Welcome to AU! Consider summarizing what can be found on the link target page. Read more on Meta: meta.askubuntu.com/questions/3149/… –  Mateng Nov 12 '12 at 18:42

It doesn't work with NLA for me either. You can set the Windows Remote Desktop to the middle option (without Network Level Authentication) and then it works.

If you are on a local area network and ports are behind a firewall for the outside world, it shouldn't be too insecure.

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