xrdp | xrdp : an open source RDP server

SETUP

I have a python3 application that creates a gui using tkinter. It runs on a Raspberry Pi 4 running Ubuntu 21.10. I'm connected using a remote desktop with the xrdp client. I successfully connect to the Ubuntu desktop, but I can't see desktop icons.

Link to the application

PROBLEM

When I launch the application with root privileges, tkinter gets confused on the display and fails to create the GUI.

I have three new Raspberry Pis running this OS:

Wish You all beautiful sunny day! :D,

I have a question for You guys. I have following python "script":

On my Pi I followed this tutorial to install docker on raspbian. Few side notes here:

1. I did NOT setup a swarm, I stopped at docker info and (as in other guides) I succesfully ran the hello world container.
2. idk if it matters, but this guide (unlike others) had me edit /etc/apt/sources.list and add line: deb https://download.docker.com/linux/raspbian/ stretch stable

On my develop machine (win 10) I used this tutorial to add docker configs and ymls to my mern stack app. However at multiple points in this tutorial they wanted me to run docker commands, so I ended up having to install Docker Desktop.

But I don't want to use local containers, I want to use the remote one on my Pi. So I used this tutorial to try and setup my remote docker.

However Im getting an error:

C:\Users\oweng>docker-machine create --driver generic --generic-ip-address=192.168.1.2 --generic-ssh-key "%HOMEPATH%/.ssh/id_rsa" --generic-ssh-user=pi remote-docker-host Running pre-create checks... Creating machine... (remote-docker-host) Importing SSH key... Waiting for machine to be running, this may take a few minutes... Detecting operating system of created instance... Waiting for SSH to be available... Enter passphrase for key 'C:\Users\oweng.docker\machine\machines\remote-docker-host\id_rsa': Enter passphrase for key 'C:\Users\oweng.docker\machine\machines\remote-docker-host\id_rsa': Detecting the provisioner... Enter passphrase for key 'C:\Users\oweng.docker\machine\machines\remote-docker-host\id_rsa': Error creating machine: Error detecting OS: OS type not recognized

I have googled the error a bit but havnt found a solution.

furthermore when checking listening ports on my Pi (docker server) I dont see it running

pi@raspberrypi:~ $ sudo lsof -i -P -n | grep LISTEN xrdp-sesm 390 root 7u IPv6 14566 0t0 TCP [::1]:3350 (LISTEN) sshd
404 root 3u IPv4 17224 0t0 TCP *:22 (LISTEN) sshd
404 root 4u IPv6 17226 0t0 TCP *:22 (LISTEN) xrdp
406 xrdp 11u IPv6 17302 0t0 TCP *:3389 (LISTEN)

So I feel like maybe the server is not running? But it seems to be.

pi@raspberrypi:~ $ systemctl status docker ● docker.service - Docker Application Container Engine Loaded: loaded (/lib/systemd/system/docker.service; enabled; vendor preset: enabled) Active: active (running) since Tue 2020-11-03 07:18:21 PST; 3h 35min ago Docs: https://docs.docker.com Main PID: 496 (dockerd) Tasks: 13 CGroup: /system.slice/docker.service └─496 /usr/bin/dockerd -H fd:// --containerd=/run/containerd/containerd.sock

Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.064113743-08:00" level=warning msg="Your kernel does not support cgroup blkio throttle.w Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.064249212-08:00" level=warning msg="Your kernel does not support cgroup blkio throttle.r Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.064373483-08:00" level=warning msg="Your kernel does not support cgroup blkio throttle.w Nov 03 07:18:14 raspberrypi dockerd[496]: time="2020-11-03T07:18:14.066367493-08:00" level=info msg="Loading containers: start." Nov 03 07:18:17 raspberrypi dockerd[496]: time="2020-11-03T07:18:17.612685200-08:00" level=info msg="Default bridge (docker0) is assigned with an IP address Nov 03 07:18:18 raspberrypi dockerd[496]: time="2020-11-03T07:18:18.710629367-08:00" level=info msg="Loading containers: done." Nov 03 07:18:20 raspberrypi dockerd[496]: time="2020-11-03T07:18:20.815943637-08:00" level=info msg="Docker daemon" commit=4484c46 graphdriver(s)=overlay2 v Nov 03 07:18:20 raspberrypi dockerd[496]: time="2020-11-03T07:18:20.822947178-08:00" level=info msg="Daemon has completed initialization" Nov 03 07:18:21 raspberrypi systemd1: Started Docker Application Container Engine. Nov 03 07:18:21 raspberrypi dockerd[496]: time="2020-11-03T07:18:21.273201136-08:00" level=info msg="API listen on /var/run/docker.sock"

Update 1

following this SO post i was able to get the server running it seems. Editing docker.service file. I now get a different error when trying to create

C:\Users\oweng>docker-machine create --driver generic --generic-ip-address=192.168.1.2:2137 --generic-ssh-key "%HOMEPATH%/.ssh/id_rsa" --generic-ssh-user=pi remote-docker-host Running pre-create checks... Creating machine... (remote-docker-host) Importing SSH key... Waiting for machine to be running, this may take a few minutes... Error creating machine: Error waiting for machine to be running: Maximum number of retries (60) exceeded

Update 2 BMitch's comment lead me to these two tutorial which seem to be exactly what im trying todo https://code.visualstudio.com/docs/containers/ssh https://code.visualstudio.com/docs/containers/choosing-dev-environment#_remote-machine

I am trying to start slurmd.service using below commands but it is not successful permanently. I will be grateful if you could help me to resolve this issue!

I'm using Apache Guacamole 1.2.0 and XRDP 0.9.12 on Ubuntu 20.04.

When looking at the remote desktop the fonts are shown sometimes reasonably sharp (alas still less than when opening an RDP connection directly), but often become blurry/blocky, as shown in the following screenshot.

It's possible to "provoke" this by letting the browser window loosing the input focus. But it also happens while working on the remote desktop. By triggerings repaints (e.g. by going with the mouse over the text) the fonts become sharp again at the repainted screen regions while staying blurry at the other screen regions.

The RDP connection settings in Guacamole are configured like this:

I played a bit with the font smoothing and caching options, but could not improve the situation. Is there any way to keep the fonts from "going blurry"?

Best regards,

Bernd

I have a Ubuntu 20.04 running within WSL 2 on a Windows 10 computer.

Every time I login to Ubuntu, I had to manually execute these four line by pasting it one by one in the Windows 10 Terminal.

I'm trying to build a linux docker container with xrdp service installed so that I can remotely access the RDP service over not only the localhost interface but also the host network eth0 ip interface. I'm failing at understanding what I'm missing here with docker networking and properly launching the container. Docker running on Ubuntu Linux 20.04. As a test, when I run this docker command:

docker run --rm -d --network host --name my_nginx nginx

I observer that nginx is listening on port 80 and exposed on the localhost interface and I can access it with a browser. Verifying with:

sudo netstat -tulpn | grep 80

Now here is the linux container I'm trying to build and launch. I use a Dockerfile to launch an xrdp service.

when i try to do rdp, it doesn't work.