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Setup and installation of 'Browser based Ubuntu 24.04 GUI Desktop accessible via HTTPS' on GCP



This section describe how to provision and Connect to ‘Browser based Ubuntu 24.04 GUI Desktop accessible via HTTPS’ on GCP cloud platform.

  1. Open Browser based Ubuntu 24.04 GUI Desktop accessible via HTTPS marketplace listing on GCP Marketplace.

/img/gcp/ubuntu-browser-2404/marketplace.png

  1. Click Launch.
  • It will take you to the agreement page. On this page, you can change the project from the project selector on top navigator bar as shown in the below screenshot.

  • Accept the Terms and agreements by ticking the checkbox and clicking on the AGREE button. /img/common/gcp_agreement_page.png

  • It will show you the successfully agreed popup page. Click on Deploy. /img/common/gcp_agreement_accept_page.png

  • On deployment page, give a name to your deployment.

  • In Deployment Service Account section, click on Existing radio button and Choose a service account from the Select a Service Account dropdown.
  • If you don't see any service account in dropdown, then change the radio button to New Account and create the new service account here.
  • If after selecting New Account option, you get below permission error message then please reach out to your GCP admin to create service account by following Step by step guide to create GCP Service Account and then refresh this deployment page once the service account is created, it should be available in the dropdown.

  • You are missing resourcemanager.projects.setIamPolicy permission, which is needed to set the required roles on the created Service Account
  • Select/Create the service account for this deployment.
  • Select a zone where you want to launch the VM(such as us-east1-)
  • Optionally change the number of cores and amount of memory. (This defaults to 1 vCPUs and 3.75 GB ram.)
  • Optionally change the boot disk type and size. (This defaults to “Standard Persistent Disk” and 20 GB respectively)
  • Optionally change the network name and subnetwork names. Be sure that whichever network you specify has ports 22 (for ssh) and 443 (for HTTPS) exposed.
  • Click Deploy when you are done. ‘Browser based Ubuntu 24.04 GUI Desktop accessible via HTTPS’ VM will begin deploying.

/img/gcp/ubuntu-browser-2404/deployed-01.png

/img/gcp/ubuntu-browser-2404/deployed-02.png

/img/gcp/ubuntu-browser-2404/deployed-03.png

  1. A summary page displays when the compute engine is successfully deployed. Click on the Instance link to go to the instance page .

  2. On the instance page, click on the “SSH” button, select “Open in browser window”.

/img/gcp/desktop-linux/desktop-linux-ssh-option.png

  1. This will open SSH window in a browser. Switch to ubuntu user and navigate to ubuntu home directory.
sudo su ubuntu
cd /home/ubuntu/

/img/gcp/rancher/switch-ubuntu-user.png

  1. Run below command to set the password for “ubuntu” user
sudo passwd ubuntu

/img/gcp/desktop-linux/desktop-linux-passwd.png

  1. Now the password for ubuntu user is set, you can connect to the VM’s desktop environment from any Browser. To do so first note the external IP of the VM from VM details page as highlighted below.

/img/gcp/desktop-linux/desktop-linux-external-ip.png

  1. Then Go to your favorite browser and enter the IP address as https://public_ip_of_vm and hit enter. Make sure to use HTTPS and not HTTP in the URL. The browser will show you SSL warning message. Click on Advance, Accept the risk and continue.

/img/gcp/kali-in-browser/https.png

  1. After accepting the ssl certification warning it will show you the below screen. Please click on Connect button.

/img/gcp/kali-in-browser/novnc-connect.png

  1. On Login screen , enter ubuntu as user name and password of ubuntu user you set in above steps.

Note: If after entering the ubuntu user and password it takes you back to the Connect screen then please click on Connect and enter the username and password again. It should connect you successfully.

/img/gcp/ubuntu-browser-2204/ubuntu-login-screen.png

  1. Now you are connected to out of box ‘Browser based Ubuntu 24.04 GUI Desktop’ environment via browser.

/img/gcp/ubuntu-browser-2204/ubuntu-gui-in-browser.png

  1. By default , resolution of GUI screen is set to 1024x600. If you want to change this resolution you can update the perboot file available in this VM. For that open terminal and run below commands.
cd /var/lib/cloud/scripts/per-boot/
sudo vi 2404-ubuntu-browser-perboot.sh

/img/gcp/ubuntu-browser-2404/open-perboot-script.png

  1. It will open a perboot script. Press “i” key to get into the edit mode. Update the -geometry 1024x600 flag and set it as per your requirement or you can completely remove this flag from the script. Save the changes by pressing ESC Key then :wq. Make sure to Reboot the VM after making changes in the perboot file. If you completely remove the -geometry flag then it will set the default resolution for your Ubuntu GUI desktop as shown below.

/img/aws/ubuntu-browser-2404/change-resolution.png

/img/aws/ubuntu-browser-2204/default-gui.png

  1. There are many settings in the noVNC interface, including local cursor, scaling, clipping mode for viewport panning and automatic reconnection. To use various noVNC settings and options, open control bar by clicking on arrow in the middle left corner.

/img/aws/ubuntu-browser-2204/novnc-options.png

  1. Under settings menu , you can set the desktop scaling as none, local or remote.

/img/aws/ubuntu-browser-2204/scaling-mode.png

  1. A solution for clipboard transfer is available. Text copied in the remote desktop will appear in the clipboard box in noVNC’s interface. You can then copy the text from that box to access it in your local clipboard. Any text put into the clipboard box will be sent to the remote clipboard as well.

/img/aws/ubuntu-browser-2204/clipboard.png

  1. You can also get the full screen mode by clicking the fullscreen option from the control bar as shown below.

/img/aws/ubuntu-browser-2204/full-screen-mode.png

  1. To disconnect the session, simple click the disconnect button from control bar.

/img/aws/ubuntu-browser-2204/disconnect.png

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