Xlib: connection to ":0.0" refused by server解决方法

遇到在Linux系统中使用Oracle账号执行DBCA或其他JAVA图形界面程序时出现Xlib错误的问题,通过使用root权限运行xhost命令解决了此问题。文章详细解释了xhost命令的作用及解决步骤。

果然革命的道路是曲折的,前两天刚搞定SQL > startup的毛病,今天又出问题了。

在linux系统中用Oracle帐号执行DBCA或其他JAVA图形界面程序时,报错:

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

Error: Can't open display: :0.0

解决办法:用root登陆,在#提示符后输入:

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

敲回车运行后出现:

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"

此时再 su - oracle 切换到Oracle用户执行图形界面任务就可以了

man xhost中有这样一段

       A complete name has the syntax ‘‘family:name’’ where the families are as follows:

       inet      Internet host (IPv4)
       inet6     Internet host (IPv6)
       dnet      DECnet host
       nis       Secure RPC network name
       krb       Kerberos V5 principal
       local     contains only one name, the empty string
       si        Server Interpreted

其中local那个是用来解决同一台机器的不同用户访问X的问题的。

[oracle@localhost database]$ ./runInstaller Starting Oracle Universal Installer... Checking Temp space: must be greater than 120 MB. Actual 28566 MB Passed Checking swap space: must be greater than 150 MB. Actual 4095 MB Passed Checking monitor: must be configured to display at least 256 colors >>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set. Failed <<<< Some requirement checks failed. You must fulfill these requirements before continuing with the installation, Continue? (y/n) [n] y >>> Ignoring required pre-requisite failures. Continuing... Preparing to launch Oracle Universal Installer from /tmp/OraInstall2025-08-28_09-41-07AM. Please wait ... DISPLAY not set. Please set the DISPLAY and try again. Depending on the Unix Shell, you can use one of the following commands as examples to set the DISPLAY environment variable: - For csh: % setenv DISPLAY 192.168.1.128:0.0 - For sh, ksh and bash: $ DISPLAY=192.168.1.128:0.0; export DISPLAY Use the following command to see what shell is being used: echo $SHELL Use the following command to view the current DISPLAY environment variable setting: echo $DISPLAY - Make sure that client users are authorized to connect to the X Server. To enable client users to access the X Server, open an xterm, dtterm or xconsole as the user that started the session and type the following command: % xhost + To test that the DISPLAY environment variable is set correctly, run a X11 based program that comes with the native operating system such as 'xclock': % <full path to xclock.. see below> If you are not able to run xclock successfully, please refer to your PC-X Server or OS vendor for further assistance. Typical path for xclock: /usr/X11R6/bin/xclock
最新发布
08-29
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