Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified
解决办法:
1. 退出oracle,用root登陆;
2. root命令行下输入:
[root@localhost ~]# xhost local:oracle non-network local connections being added to access control list
屏幕提示 xhost: bad hostname "non-network"
xhost: bad hostname"local"
xhost: bad hostname "connetcions"
xhost: bad hostname "being"
xhost: bad hostname "added"
xhost: bad hostname "access"
xhost: bad hostname "control"
xhost: bad hostname "list"
3. 再试试su oracle
[root@localhost ~]# su - oracle
![](https://images2015.cnblogs.com/blog/280044/201605/280044-20160517105846435-231927964.jpg)
![](https://images2015.cnblogs.com/blog/280044/201605/280044-20160517105903794-1643836568.jpg)