Unix equivalent of windows terminal server options?

Peter Silva peter at bsqt.homeip.net
Mon Jan 30 06:01:45 UTC 2017

apt-get install rdesktop

It is a windows remote desktop client for linux.  works fine. Use it all
the time for talking to windows servers.

On Mon, Jan 30, 2017 at 12:23 AM, asad <a.alii85 at gmail.com> wrote:

> Thanks Karl,
> The web-application is ORACLE CRM, and it works on Internet explorer only.
> The users type is remote VPN. The reason to run terminal services is
> because it would be running a "security agent" that be recording all user
> activities and sessions.
> For license I have checked I need two type licenses
> Window Server 2016 DVC CAL OLP
> Window remote Desktop Services DVC CAL 2016
> Thanks
> On Sat, Jan 28, 2017 at 1:54 AM, Karl Auer <kauer at biplane.com.au> wrote:
>> On Fri, 2017-01-27 at 23:41 +0500, asad wrote:
>> > I want to replace *Windows terminal server* mostly due to cost
>> > reasons license cost for 2100 users goes out of roof.
>> >
>> > The end-user is all windows but I want a jump server that is UNIX
>> > based [...] to run a terminal services for 2100 users.
>> > Some of the basic requirement for such a setup be:-
>> >
>> >    - use of browser to access web based application
>> >    - Restrict or limit desktop application based upon user
>> > authorization.
>> >    - Supporting concurrent users for about 1200 per server.
>> Remote access to a Linux system is no problem at all - ssh, and run
>> whatever programs you like including X programs. The X server is on the
>> client. In my experience X really likes a fast network, and it not very
>> good on slow ones, especially for graphics-intensive things, which
>> these days is almost everything. For Windows users, this is not useful,
>> because Windows is not an X server, and you probably don't want to have
>> to install one on every Windows system (though there are free ones).
>> That leaves RDP or VNC.
>> Linux supports both RDP and VNC, but doesn't (out of the box) support
>> multiple users. As far as I know there is no way to use VNC with
>> multiple simultaneous users. There is a system called XRDP which does
>> support multiple RDP users, and is easy to install, though with some
>> restrictions on the window managers you can use. If you log in via
>> XRDP, you will get your own Linux desktop, with access to Linux
>> programs and features, and you will be using a Linux window manager,
>> not Windows.
>> One big question is authentication. If you are expecting to
>> authenticate against AD, Linux does support that via Samba. The AD
>> features are not comprehensive but for straight AD authentication it
>> should work fine. For non-AD username/password access it will work fine
>> too; you can even add MFA to the mix if you wish.
>> The biggest question is what applications your 2100 users will be
>> running on this server. A primary function of Windows TS is to provide
>> multiple users, simultaneously, with their own remote desktop, on which
>> they can run whatever *Windows* applications are available on the
>> server. Linux cannot provide that for Windows applications in any
>> general sense.
>> Linux CAN provide that in a few cases. Those cases are: Where the
>> program to be run has a Linux version (for example, Firefox); where
>> there is a good alternative Linux program (for example, LibreOffice
>> instead of MSOffice); where the Windows program to be run can be run
>> successfully under WINE.
>> Controlling access to specific applications on a user-by-user basis is
>> possible but fiddly; definitely not as point-an-click as Windows. I
>> have *never* done it myself, but I imagine you would create one group
>> for each application, and set the permissions on the executable to "-
>> rwxr-xr--". Not at all sure how you would do it with WINE applications
>> - perhaps by controlling access to the directory containing the
>> executable?
>> Your basic requirements suggest that a TS-style system may not actually
>> be needed. All clients have a web browser anyway, why go to a central
>> system to run one? Or are your clients outside the enterprise? Why do
>> they need to go to a TS to run desktop applications? It will be faster
>> if they run them locally and just centralise file access if needed.
>> Finally - don't be too sure you really need 2100 CALs. Ask around and
>> talk to Microsoft or your Microsoft reseller.
>> Regards, K.
>> --
>> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> Karl Auer (kauer at biplane.com.au)
>> http://www.biplane.com.au/kauer
>> http://twitter.com/kauer389
>> GPG fingerprint: A52E F6B9 708B 51C4 85E6 1634 0571 ADF9 3C1C 6A3A
>> Old fingerprint: E00D 64ED 9C6A 8605 21E0 0ED0 EE64 2BEE CBCB C38B
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