Run VNC server on the Linux box by executing something like "vncserver:1 -geometry x". From here onwards we assume the Linux box is. VNC is a client-server GUI-based tool that allows you to connect via remote-desktop to your Clear Linux OS host. Install the VNC server and. Support for teachers and staff · Deliver high-quality remote learning, as if you were in the classroom · Easily connect to Windows, Mac, Linux, or Raspberry Pi. COMODO SHOP
Configure a VNC-server-start method on your host. Establish a VNC connection to your host. Terminate a VNC connection to your host. The system administrator sets up a systemd service script for you with a pre-assigned display ID.
The system administrator configures GDM to accept connection requests. Although all three methods can coexist on the same Clear Linux OS host, we recommend you pick a method that suits your needs. For simplicity, the rest of this guide refers to these methods as Method 1, Method 2, and Method 3.
Start VNC with the vncserver command. Upon completion, you can find the default configuration files and the password file hidden in the. In the above example, the display ID is 2. For example:. If you do not recall the active session display ID, use the vncserver -list command to find it. To customize settings such as screen size, security type, etc. To configure VNC for this method, you must have root privileges.
You will set up a systemd service file for all intended VNC users with their own preassigned unique display ID. Create a systemd service script file vncserver :[X]. Be sure the correct username is entered in the User field. The example below shows user vnc-user-b who is assigned the display ID 5.
Have each user log into their account and set a VNC password with the vncpasswd command before proceeding to the next step. Start the VNC service script and set it to start automatically on boot for each user. Replace the [X] with the display ID.
The example below shows 2 VNC sessions that were successfully started for users vnc-user-b with display ID 5 and vnc-user-c with display ID 6. You must have root privileges to perform this configuration. Create a systemd socket file xvnc.
Create a systemd service file xvnc. Create a GDM custom. An SSH client is only needed if you chose to use Method 1 or you plan to encrypt your VNC traffic, which is discussed later in this guide. On Windows, you can install Putty. Under the Category section, select Session.
See Figure 1. Set the Connection type option to SSH. Take note of the generated display ID because you will input it into the VNC viewer app to establish the connection. The above example shows the display ID is 3. VNC automatically picks a unique display ID unless you specify one.
To specify a display ID, enter a unique number that is not already in use after the colon. You can now end the SSH connection by logging out. This does not terminate your active VNC session. For Method 1 and Method 2, you must connect to a specific active session or display ID using one of two options:.
For example, if the display ID is 3, it can be specified as or just as 3. Use For simplicity, the instructions below use the fully-qualified VNC port number. The following screenshot shows connecting to Clear Linux OS host Follow these steps:. Right-click a connection node and select Properties…. See Figure 3. Select the ColorLevel setting and change it to your preferred setting. You will be prompted to enter the VNC password. This will be the VNC password for the user corresponding to the display number unless a global default VNC password was set.
A window appears showing the VNC server desktop. Note that this is not the desktop the normal user sees, it is an Xvnc desktop. Authenticate yourself by entering the VNC password. Note that this is not the desktop the normal user sees, it is the Xvnc desktop. Configuring the Firewall for VNC. When using a non-encrypted connection, the firewall might block your connection.
If required, open a port for the TCP protocol as described below. When using the -via option, traffic is redirected over SSH which is enabled by default. The default port of VNC server is To reach the port through which a remote desktop will be accessible, sum the default port and the user's assigned display number.
Opening a Port Using lokkit The lokkit command provides a way to quickly enable a port using the command line. Active connections will be terminated and time out on the initiating machine.
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