How to Install VNC on CentOS 7 @ 雜七雜八的小筆記!

1. Install GUI Gnome packages:
# yum groupinstall -y "GNOME Desktop"

2. Install VNC package:
# yum install -y tigervnc-server

3. Adding VNC user
# useradd myVNCUser

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

# vim /etc/systemd/system/vncserver@:1.service
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[Service]
Type=forking
# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
ExecStart=/sbin/runuser -l myVNCUser -c "/usr/bin/vncserver %i"
PIDFile=/home/myVNCUser/.vnc/%H%i.pid
ExecStop=/bin/sh -c '/usr/bin/vncserver -kill %i > /dev/null 2>&1 || :'
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4. Firewall setting:
# firewall-cmd --permanent --zone=public --add-service vnc-server
# firewall-cmd --reload

5. VNC user setting:
# su - myVNCUser
$ vncserver

$ vim ~/.vnc/xstartup
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gnome-session &
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$ exit

6. VNC Daemon setting:
# systemctl daemon-reload
# systemctl enable vncserver@:1.service

7. Your VNC Daemon is failure after CentOS 7.0 reboot.
I give you a GREEDY Solution:
# chmod +x /etc/rc.d/rc.local
or
# systemctl start rc-local

, and then
# vim /etc/rc.d/rc.local
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/usr/bin/rm -rf /tmp/.X11-unix
systemctl restart vncserver@:1.service
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