CentOS安装使用VNC进行远程桌面登录

6、配置vncserver：
拷贝创建一个新的配置文件，以开启1号窗口为例，如果需要开启多个则创建多个配置文件即可：
[root@localhost ~]# cp /lib/systemd/system/vncserver@.service /lib/systemd/system/vncserver@:1.service
修改配置文件内容
[root@localhost ~]# vi /lib/systemd/system/vncserver@:1.service
 The vncserver service unit file

 Quick HowTo:
 1. Copy this file to /etc/systemd/system/vncserver@.service
 2. Replace  with the actual user name and edit vncserver
 parameters appropriately
 (“User=” and “/home//.vnc/%H%i.pid”)
 3. Run `systemctl daemon-reload`
 4. Run `systemctl enable vncserver@:.service`
 DO NOT RUN THIS SERVICE if your local area network is
 untrusted! For a secure way of using VNC, you should
 limit connections to the local host and then tunnel from
 the machine you want to view VNC on (host A) to the machine
 whose VNC output you want to view (host B)

 [user@hostA ~]$ ssh -v -C -L 590N:localhost:590M hostB

 this will open a connection on port 590N of your hostA to hostB’s port 590M
 (in fact, it ssh-connects to hostB and then connects to localhost (on hostB).
See the ssh man page for details on port forwarding)

 You can then point a VNC client on hostA at vncdisplay N of localhost and with
 the help of ssh, you end up seeing what hostB makes available on port 590M

 Use “-nolisten tcp” to prevent X connections to your VNC server via TCP.

 Use “-localhost” to prevent remote VNC clients connecting except when
 doing so through a secure tunnel. See the “-via” option in the
 `man vncviewer’ manual page.
[Unit]
Description=Remote desktop service (VNC)
After=syslog.target network.target
[Service]
Type=forking
User=root
# Clean any existing files in /tmp/.X11-unix environment
ExecStartPre=-/usr/bin/vncserver -kill %i
ExecStart=/usr/bin/vncserver %i
PIDFile=/root/.vnc/%H%i.pid
ExecStop=-/usr/bin/vncserver -kill %i
[Install]
WantedBy=multi-user.target