"xxadmin" user: No protocol specified 错误

1 查看DISPLAY是否设置:env| grep DISPLAY

  如未设置则,export DISPLAY=192.168.0.9:0.0 (斜体字修改为自己的服务器的ip)

2   root用户执行 xhost +

3  切换到oracle用户安装即可

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https://wiki.archlinux.org/index.php/Running_X_apps_as_root

Running X apps as root

 

By default, and for security reasons, root will be unable to connect to a non-root user's X server. There are multiple ways of allowing root to do so, if it is necessary.

The most secure methods

The most secure methods are simple. They include:

  • kdesu (included with KDE)
$ kdesu name-of-app
  • gksu (included with GNOME)
$ gksu name-of-app
  • bashrun (in community)
$ bashrun --su name-of-app
  • sudo (must be installed and properly configured with visudo)
$ sudo name-of-app
  • sux (wrapper around su which will transfer your X credentials)
$ sux root name-of-app

These are the preferred methods, because they automatically exit when the application exits, negating any security risks quite completely.

Alternate methods

These methods will allow root to connect to a non-root user's X server, but present varying levels of security risks, especially if you run ssh. If you are behind a firewall, you may consider them to be safe enough for your requirements.

  • Temporarily allow root access
  • xhost
$ xhost +

will temporarily allow root, or anyone to connect your X server. Likewise,

$ xhost -

will disallow this function afterward.

Some users also use:

$ xhost + localhost

(Your X server must be configured to listen to TCP connections for xhost + localhost to work).

  • Permanently allow root access
Method 1: Add the line

session optional pam_xauth.so

to /etc/pam.d/su and /etc/pam.d/su-l. Then switch to your root user using 'su' or 'su -'.

Method 2: Globally in /etc/profile

Add the following to /etc/profile

export XAUTHORITY=/home/non-root-usersname/.Xauthority

This will permanently allow root to connect to a non-root user's X server.

Or, merely specify a particular app:

export XAUTHORITY=/home/usersname/.Xauthority kwrite

(to allow root to access kwrite, for instance.)

转载于:https://www.cnblogs.com/kungfupanda/p/4449955.html

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转载自blog.csdn.net/weixin_34150224/article/details/94493502