How to configure VNC server in Linux CentOS

 yum install tigervnc-server

cp /lib/systemd/system/vncserver@.service  /etc/systemd/system/vncserver@:1.service

ExecStart=/usr/bin/vncserver_wrapper root %i

PIDFile=/home/root/.vnc/%H%i.pid

vi /etc/systemd/system/vncserver@\:1.service

# systemctl daemon-reload

# systemctl start vncserver@:1

# systemctl status vncserver@:1

# systemctl enable vncserver@:1

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

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

vncserver

--Add new port 

# firewall-cmd --add-port=5902/tcp

# firewall-cmd --add-port=5902/tcp --permanent

vncserver

---When Not work

rm -rvf .X11-unix