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准备环境

centos 7.3 图形化虚拟机

[root@localhost ~]# yum -y install tigervnc tigervnc-server

添加桌面
[root@localhost ~]# vncserver     //密码不低于6位

[root@localhost ~]# vim /root/.vnc/xstartup     //修改配置文件，添加如下内容：
[ -x /etc/vnc/xstartup ] && exec /etc/vnc/xstartup
[ -r HOME/.Xresources
xsetroot -solid grey
vncconfig -iconic &
xterm -geometry 80x24+10+10 -ls -title “$VNCDESKTOP Desktop” &
gnome-session &

开启服务

[root@localhost ~]# vncserver :2    //出现以下内容
A VNC server is already running as :2
Warning: localhost:1 is taken because of /tmp/.X11-unix/X1
Remove this file if there is no X server localhost:1
New 'localhost:3 (root)' desktop is localhost:3
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/localhost:3.log

windows下载vnc并打开

成功！