linux上启动dbca或netmgr类的图形界面报错

 Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
……

解决办法：

exit 退到root用户下执行下面代码

xhost local:oracle non-network local connections being added to access control list

屏幕会出现如下内容：

non-network local connections being added to access control list
xhost:  bad hostname "non-network"
xhost:  bad hostname "local"
xhost:  bad hostname "connections"
xhost:  bad hostname "being"
xhost:  bad hostname "added"
xhost:  bad hostname "to"
xhost:  bad hostname "access"
xhost:  bad hostname "control"
xhost:  bad hostname "list"

 然后su - oracle

继续启动图形界面就好了。

问题遇到好多次，记录下下。