Ubuntu 14.04 – How to install xrdp (Xfce4) in Ubuntu 14.04

we will describe the steps needed in order to install xrdp and the xfce alternate desktop that will be used while remoting into your Ubuntu 14.04 machine.

Install XRDP Package from Ubuntu Repository

1. First, Login in to your Desktop Machine with user you want to configure the xRDP

2. After Login, Using the Dash Button, in search Box, Type Terminal

Click on the terminal icon and the Terminal console will open

In the Terminal, type the following command

sudo apt-get install xrdp

You will be prompted for your password. Enter the Current logged in user password.

It will show you the Packages information and Size. Enter Y to Download and Install.

Done.

Installing an alternate desktop environment (XFCE4).

In the Terminal console; type the following command

sudo apt-get update
sudo apt-get install xfce4

You might be prompted for a password,  Enter the Current logged in user password.

It will show you the Packages information and Size. Enter Y to Download and Install.

Done.

Configuration for Xrdp

you have to configure your Ubuntu machine in order for xrdp to know that the xfce desktop will be used instead of the Current Desktop Environment. To configure this, Login with the user you want to configure Remote Desktop. from the terminal console, you will issue the following command

echo xfce4-session >~/.xsession

Restart the xrdp service by issuing the following command.

sudo service xrdp restart

Test Your Configuration

To know the IP of the machine type in terminal

hostname -I 

Now go to your windows machine, start remote Desktop client and enter the ip address/name of your ubuntu machine.

You should see then the login screen of xrdp presented to you. Note that, at this screen (and because we have not configured keyboard layout yet), the keyboard layout is set to English by default.

Enter username and password for which you configured the xrdp and Press OK

If everything is configured correctly,you should see your xfce desktop loading and you should be able to perform you work through this desktop environment.

To set Keyboard layout at the xrdp Login screen, perform the following steps

As explained above, with no special configuration, the xrdp login screen keyboard layout is set to english by default.  if you need to change it to another keyboard layout, you should proceed with the following actions

This is the command you should issue in order to change the keyboard layout to be used during xrdp sessions…
Step 1 : You go to the /etc/xrdp directory
Step 2 : you issue the command setxkbmap -layout <%your layout%> to define which keyboard map/layout to use
Step 3 : create a copy of the km-0409.ini file into the same directory. It seems that this is the default file used by xrdp to define the keyboard layout. You will need to use sudo in order to be able to write into the directory
Step 4 : Check that you have a backup of your file by typing the dir or ls command
Step 5 : update the file by issuing the following command sudo xrdp-genkeymap km-0409.ini

Reconnect to the same session throug xrdp

You have mutliple ways to reconnect to the same session through xrdp. we have explained two of them. One method is based on performing a custom installation and use the X11VNC software. This is one is working well but requires a little bit more effort. (http://c-nergy.be/blog/?p=4168)

The other one is to use the xrdp package from ubuntu repository and tweak some configuration files whil connected to the session. This solution is really a workaround and it’s not our favourite one. (see http://c-nergy.be/blog/?p=4471)

Here, we will use a third method that can be used if you use the xrdp pakcage from the ubuntu repository. This method is much better than the one provided by us some time ago. In this method, we will tweak the xrdp login screen. We will add a field in the login box where the user can specify the port to be used when remoting to the ubuntu machine.

You will first need to edit xrdp.ini file located under the /etc/xrdp. To edit the file, issue the following command

sudo gedit /etc/xrdp/xrdp.ini

You might be prompted for a password. if this is the case, provide the password and Press enter
When the file is open, locate the section [xrdp1] and replace the following line

port=-1
with the line
port=ask-1

Save the file. The file should look like this

Click on Picture for Better Resolution

When done, restart the xrdp service by issuing the following command

sudo service xrdp restart.

You are done.

When trying to access your Ubuntu machine through via the remote desktop client, you will see that the xrdp login screen has indeed an additional field called port.

Click on Picture for Better Resolution

If this is your first connection, leave the default value in the port field (i.e. -1), you will be then connecting through xrdp to your ubuntu machine using a specified port that can be seen on the login process dialog box.

Click on Picture for Better Resolution

Take a note of this port.

When you need to reconnect, you will have to specify the same port as your first connection and you should see the same screen as you left it.

Click on Picture for Better Resolution

Note : This tip has been provided to us by one of our reader (Thank you Wei )

This is it for this post. Using only the ubuntu xrdp package, we have been able to install and configure a remote access solution. By tweaking the xrdp.ini file, we even have been able to provide a simple and easy to use solution in order to reconnect to an existing session.

However, we still have a problem with xrdp used in conjunction with Ubuntu. In order to remote into your ubuntu machine, you have no other choice than using an alternate desktop environment (in our case its xfce). I find it quite irritating that we cannot have the xrdp package working with Unity or Gnome desktop environment.

We have installed fedora distribution and installed the xrdp package. And guess what ! I can connect through xrdp to fedora and have the gnome desktop environment working. Moreover, I can disconnect and when reconnecting I will be reconnecting to the existing session I just left. And all of this with no tweak in configuration files.

I would love to see the same functionality in Ubuntu. As one of our readers mentionned, it might be time for Ubuntu users to fill in a bug report about xrdp and try to have it fixed. If more and more users complains, maybe Ubuntu team will take the request into account.     

Till next Time

See ya

Note : All above information is referred from the http://c-nergy.be/blog/?p=5305. Thanks to them for this valuable information