On Centos 7, if you implement remote desktop using Tigervnc or XRDP, there is a problem: The local connection to the remote server is not the user session that the physical machine is currently logged in, but a new and isolated session. So what do we need to do to connect to the entity session, what should we do? X11vnc! It can help us achieve this.

Centos 7 VNC Remote Desktop Cannot Connect To Entity Session

Install

# yum -y install x11vnc

Set Password

# x11vnc -storepasswd

Enter VNC password:

Verify password:

Write password to /root/.vnc/passwd? [y]/n y

Password written to: /root/.vnc/passwd

Setting x11vnc Startup

1. Create a new startVnc.sh file

   # touch /etc/rc.d/init.d/startVnc.sh

2. Edit the startVnc.sh file

   # vim /etc/rc.d/init.d/startVnc.sh

3. Add the following content, save and exit

   #!/bin/bash
   #chkconfig: 345 88 14
   nohup x11vnc --reopen --forever -rfbauth ~/.vnc/passwd &

4. Create a new startVnc.service file

   # touch /usr/lib/systemd/system/startVnc.service

5. Edit the startVnc.service file

   # vim /usr/lib/systemd/system/startVnc.service

6. Add the following content, save and exit

   [Unit]
   Description=start vnc service
   Requires=graphical.target
   After=graphical.target
   [Service]
   Type=forking
   User=root
   Group=root
   Restart=always
   TimeoutSec=5
   IgnoreSIGPIPE=no
   KillMode=process
   GuessMainPID=no
   RemainAfterExit=no
   ExecStart=/etc/rc.d/init.d/startVnc.sh
   [Install]
   WantedBy=graphical.target

7. Setting x11vnc startup

   # systemctl enable /usr/lib/systemd/system/startVnc.service

8. Reboot

   # reboot

9. Check if x11vnc is successfully started

   # netstat -anp | grep 5900

Configuration completed

Now, try connecting to this server with other vnc clients. How about? Is it successful?