How to Install and Configure VNC Server in CentOS 7 - Linux Dukes - Secret Revealed of Offshore Hosting Company | Bulletproof Hosting Directory 2022

How to Install and Configure VNC Server in CentOS 7 – Linux Dukes

VNC Server

TigerVNC (Tiger Digital Community Computing) is a system for graphical desktop sharing which lets you remotely management different computer systems. It really works on the client-server precept: a server shares its output (vncserver) and a consumer (vncviewer) connects to the server. It makes use of the Distant Body Buffer protocol to remotely management one other pc. It transmits the keyboard and mouse enter from one pc to a different, relaying the graphical-screen updates, over a community.

Set up TigerVNC Server

Open the terminal, login as root and subject following command.

yum set up tigervnc-server

On the obtain immediate press “y” to proceed set up course of.

Install VNC Server
Set up VNC Server

Configuring VNC Server

The VNC server may be configured to begin a show for a number of customers accounts that are already obtainable on the system. We have to copy a configuration file named /and so on/systemd/system/vncserver@.service. To create this file, copy the /usr/lib/systemd/system/vncserver@.service file as root

cp /usr/lib/systemd/system/vncserver@.service /and so on/systemd/system/vncserver@.service
vi /and so on/systemd/system/vncserver@.service

VNC Server Config File
VNC Server Config File

Transfer to the top of the file on line quantity 41 change with the consumer on which distant connection is meant. In my case it’s consumer “duke”, already created on the system. You need to put any consumer obtainable in your system. Save and shut the file.

Update the user on which remote sessions are allowed
Replace the consumer on which distant classes are allowed

Now, its time to set the password for the consumer outlined within the configuration file. The password should no less than be 6 characters lengthy.

For this we should swap consumer from root to the consumer outlined in vnc configuration file (ie duke).

[root@localhost duke]# su - duke

[duke@localhost ~]$ vncpasswd

Assign VNC User Password
Assign VNC Person Password

Swap again to root consumer and subject the next command to reload the configuration adjustments, begin the service and allow it to begin on each reboot.

systemctl daemon-reload
systemctl begin vncserver@:1

systemctl allow vncserver@:1

Firewall Configuration For Single VNC Session

VNC allocates TCP port numbers ranging from 5901. Firewall if enabled, will block incoming site visitors on that port.

With the intention to enable exterior VNC purchasers to hook up with the VNC server, we must configure a firewall rule that may enable VNC port site visitors to move by the firewall.

A number of VNC classes may have incremental port numbers like 5901/TCP, 5902/TCP, 5903 and so forth.

Challenge following command so as to add the rule for all ports which might be at the moment listening on VNC service (in our case it’s 5901/tcp solely).

firewall-cmd --add-port=5901/tcp
firewall-cmd --add-port=5901/tcp --permanent

VNC Server Configuration for A number of Customers

VNC classes for a number of customers may be configured on identical server. We have to copy the configuration template file for every consumer individually.

cp /usr/lib/systemd/system/vncserver@.service /and so on/systemd/system/vncserver-duke2@.service
cp /usr/lib/systemd/system/vncserver@.service /and so on/systemd/system/vncserver-duke3@.service

Open every file utilizing vim and substitute   token inside every file with acceptable consumer, that’s already obtainable on the system.

vi /and so on/systemd/system/vncserver-duke2@.service
vi /and so on/systemd/system/vncserver-duke3@.service

Login to every consumer and assign vnc password.

[root@localhost duke]# su - duke2

[duke2@localhost ~]$ vncpasswd

[duke2@localhost ~]$ su – duke3

[duke3@localhost ~]$ vncpasswd

Change User names inside files and login to user to assign vnc password
Change Person names inside information and login to consumer to assign vnc password

Reload daemon, begin and allow providers as proven beneath.

systemctl daemon-reload
systemctl begin vncserver-duke2@:4.service
systemctl begin vncserver-duke3@:5.service
systemctl allow vncserver-duke2@:4.service
systemctl allow vncserver-duke3@:5.service

Firewall Configuration For A number of VNC Periods

Now we are going to add firewall guidelines to permit traffice from 5904/tcp and 5905/tcp

firewall-cmd --add-port=5904/tcp
firewall-cmd --add-port=5904/tcp --permanent
firewall-cmd --add-port=5905/tcp
firewall-cmd --add-port=5905/tcp --permanent

Start VNC Daemons for both service templates and add firewall rules
Begin VNC Daemons for each service templates and add firewall guidelines

VNC Viewer or VNC Shopper

Obtain VNC viewer in your OS here and set up it.

After profitable set up, Open VNC Viewer and supply the IP tackle of the VNC server and connection/service id separated by : like following


Open VNCViewer
Open VNC Viewer and Present IP Tackle of VNC Server

Check mark the warning and continue
Examine mark the warning and proceed

Provide the password for VNC user
Present the password for VNC consumer

Provide the password set for the user
Present the password set for the consumer

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