centos vnc configuration server

Confirm that the vncserver will start and stop cleanly. Install vnc server on CentOS 7 · Step 1» install VNC package. · Step 2» Create a file '[email protected] · Step 3» Now open /etc/systemd/system/[email protected] · Step. In this tutorial, we will walk you through the steps for installing and configuring a VNC server on a CentOS 7 system. We will also. ANYDESK LATEST VERSION DOWNLOAD FOR PC

A Vibrant Leaf Media Company. All rights reserved. Sign in. Forgot your password? Get help. Privacy Policy. Password recovery. Home CentOS. By Hend Adel. July 28, Updated: December 22, Related Articles. Comment: Please enter your comment! Latest Articles. How to configure static IP address on Linux Mint.

Top 10 opensource bug and issue tracking tools for Linux. How to install Deepin desktop on Manjaro Linux. How to install multimedia codecs on Linux Mint. More Articles Like This. Debian vs. Depending on the server software, the VNC client will connect to the active desktop for example, as TeamViewer or AnyDesk programs or a standalone virtual desktop like the Windows RDP remote desktop protocol.

The latter, perhaps more powerful and secure, especially if you need to manage the server computer because each session will be a unique environment, configured with the permissions and rights of the connected user. The first thing to do is to install the TigerVNC Server program by opening a terminal session and entering the following command with root privileges:.

Immediately after that, you need to create a separate VNC user from which the connection will be made with a dedicated password. To do this, enter the following:. Important: never do this as a root user - this will pose a serious threat to the security of your system. The best solution would be to leave the root user without access to VNC and set up a dedicated account with limited rights.

After you create vncuser and set a password for logging in, you also need to set a unique VNC password for this user. The command to do this is:. The next thing to do is create a VNC configuration file for vncuser. The number 1 that we added to the new file name is the display number that will be used for this particular instance of the service. The first will be , then and so on. Immediately after copying you need to edit the new file using Vi, Nano or another text editor, and replace [USER] with the name of the user created recently in our case, vncuser.

This is how the file should look after the update except for the long commented part at the beginning :. Once you do this, you can reload the VNC daemon and run vncserver 1 with the following commands:. Before proceeding, verify that the service is running by entering the systemctl status command:. Another test that you can perform before trying to connect to the server is to look at the active network sockets using the ss command: if everything works correctly, you should see that the VNC server is working and uses TCP port Execute the command:.

Since our VNC service is listening on TCP port , you must be sure that such a port is open and accessible to external clients. Therefore, if you have a firewall installed, you must create an appropriate rule that allows VNC clients to connect. How many ports to open will depend on how many VNC server instances you need. The command to open this port on Firewalld:.

It will not be superfluous to mention that you can also restrict this port to certain groups, IP addresses, network cards, or other simple or complex firewall rules.

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Virtual Network Computing or VNC is a graphical-based tool that can help you to control a computer remotely.

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The number 1 that we added to the new file name is the display number that will be used for this particular instance of the service. The first will be , then and so on. Immediately after copying you need to edit the new file using Vi, Nano or another text editor, and replace [USER] with the name of the user created recently in our case, vncuser. This is how the file should look after the update except for the long commented part at the beginning :.

Once you do this, you can reload the VNC daemon and run vncserver 1 with the following commands:. Before proceeding, verify that the service is running by entering the systemctl status command:. Another test that you can perform before trying to connect to the server is to look at the active network sockets using the ss command: if everything works correctly, you should see that the VNC server is working and uses TCP port Execute the command:.

Since our VNC service is listening on TCP port , you must be sure that such a port is open and accessible to external clients. Therefore, if you have a firewall installed, you must create an appropriate rule that allows VNC clients to connect.

How many ports to open will depend on how many VNC server instances you need. The command to open this port on Firewalld:. It will not be superfluous to mention that you can also restrict this port to certain groups, IP addresses, network cards, or other simple or complex firewall rules. Otherwise, you need to install one of them: the TigerVNC server will start a parallel instance of this desktop environment for each login session, which means that we must have at least one GUI. If you need a lightweight alternative, we can offer Xfce, a free, open-source environment for Unix-like platforms that works great with TigerVNC.

GNOME also works great, but it quite resources intensive: if you want to save resources on your server machine, Xfce might be the best choice. To install it, enter the following:. If you decide to use Xfce , you will also need to modify the file that was executed when the VNC session started. Remember to specify TCP port if you followed our guide. Connection problems - Firewall configuration : if you see pop-up errors that the client cannot connect to the remote host, you need to check your network and firewall configuration to make sure there are no blocking problems that could prevent the client from connecting to TCP server port Black screen with the mouse - updating YUM or reinstalling the GUI : if you see a black screen with a working mouse cursor, it probably means that your VNC connection is working fine, but there is something that prevents the GUI from starting correctly desktop.

For correction:. Rate this Please tell us why are you willing to rate like this? In case a new Authentication message appears on your screen and your user has no root privileges, just hit Cancel button to continue to CentOS Desktop, as shown in the below screenshot. Be aware that the established VNC communication between the server and client and any data exchanged except the password run over an unencrypted channel.

Also, supply the password setup for the VNC user as illustrated in the following screenshots. To install Remmina Remote Desktop client in Debian based distros issue the following command. In case you need to run a new parallel VNC session under the same user, open a Terminal console, log in with the user you want to start the new VNC session and execute the below command.

When you first start the server you will be asked to supply a new password for this session. However, be aware that this session runs with your logged-in user permissions and independently from the started systemd VNC server session.

To display the opened ports, execute ss command without root privileges as illustrated in the below excerpt. It will list only the started VNC sessions owed by your user. In order to stop the VNC server instances started with this logged in user permissions, issue the following command without any root privileges.

This command will destroy all started VNC instances owned only by the user who stated them. You can now access your CentOS 7 system and perform administrative tasks by using the graphical user interface provided by the operating system. TecMint is the fastest growing and most trusted community site for any kind of Linux Articles, Guides and Books on the web. Millions of people visit TecMint! If you like what you are reading, please consider buying us a coffee or 2 as a token of appreciation.

We are thankful for your never ending support. I execute the command sudo yum install tiger-vnc server , as listed at the top of this column, it goes out to a bad destination to find the file. I try to install the program the other option when downloading and I get a file not supported error. I need access to this server from a remote location. I am facing a problem when I have finished with these steps and connect to the vnc server, blue screen appears to me, and this error on the log file:.

Works fine! Dec 10 Thanks for these instructions. Have a question or suggestion? Please leave a comment to start the discussion. Please keep in mind that all comments are moderated and your email address will NOT be published.

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