解决 xhost + 出现 unable to open display

首先安装vnc-server

yum install vnc vnc-server

安装过后执行

/** 注释
  * Password 输入密码
  * Verify 确认密码
  * Would you like to enter a view-only password (y/n)? 选择N
  */

[root@yr ~]# vncserver 

You will require a password to access your desktops.

Password:
Verify:

Would you like to enter a view-only password (y/n)? n

/**
  *  yr:1 就是后面要用的值
  *
  */

New 'yr:1 (root)' desktop is yr:1

Creating default startup script /root/.vnc/xstartup
Creating default config /root/.vnc/config
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/yr:1.log

执行

[root@yr ~]# export DISPLAY=yr:1
[root@yr ~]#  xhost +

问题就解决