一、Xhosts报错
安装好vncserver，本地pc笔记本能通过vnc viewer远程连接Oracle服务器，但是在执行xhost+报错，尝试过localhost，尝试过127.0.0.1，也试过本机ip地址，都是unable toopen displa，如下所示
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[root@orcltest ~]# export DISPLAY=localhost:1
[root@orcltest ~]# xhost
xhost: unable to open display "localhost:1"
[root@orcltest ~]#
[root@orcltest ~]# export DISPLAY=127.0.0.1:1
[root@orcltest ~]# xhost
xhost: unable to open display "127.0.0.1:1"
[root@orcltest ~]# xhost +
xhost: unable to open display "127.0.0.1:1"
[root@orcltest ~]# xhost + 192.51.3.12
xhost: unable to open display "192.51.3.12:1"
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二、去查看后台的vnc日志信息，日志信息，看到vnc日志信息正常，没有啥异常信息
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[root@orcltest ~]# vim /root/.vnc/orcltest:1.log
Xvnc TigerVNC 1.1.0 - built May 11 2016 13:01:55
Copyright (C) 1999-2011 TigerVNC Team and many others (see README.txt)
See http://www.tigervnc.org for information on TigerVNC.
Underlying X server release 11704000, The X.Org Foundation
Tue Mar 14 03:23:26 2017
vncext: VNC extension running!
vncext: Listening for VNC connections on all interface(s), port 5901
vncext: created VNC server for screen 0
GNOME_KEYRING_SOCKET=/tmp/keyring-jRupIx/socket
SSH_AUTH_SOCK=/tmp/keyring-jRupIx/socket.ssh
GNOME_KEYRING_PID=7358
Cleaned 21 files 7 still live
Failed to play sound: Not available
(polkit-gnome-authentication-agent-1:7380): GLib-GObject-WARNING **: cannot register existing type `_PolkitError'
(polkit-gnome-authentication-agent-1:7380): GLib-CRITICAL **: g_once_init_leave: assertion `initialization_value != 0' failed
** (gnome-user-share:7381): WARNING **: gnome-user-share cannot be started as root for security reasons.
Initializing nautilus-gdu extension
** (gnome-panel:7372): WARNING **: panel-applet-frame.c:1288: failed to load applet OAFIID:GnoteApplet:
(null)
** (gnome-panel:7372): WARNING **: panel-applet-frame.c:1288: failed to load applet OAFIID:GNOME_FastUserSwitchApplet:
(null)
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三、试试xdyinfo
Google到了一些资料，有准备安装xdyinfo成功的，这里也试试看，先安装xdpyinfo
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[root@orcltest ~]# xdpyinfo
-bash: xdpyinfo: command not found
[root@orcltest ~]# yum install -y xdpyinfo
Loaded plugins: refresh-packagekit, security
Setting up Install Process
Resolving Dependencies
--> Running transaction check
---> Package xorg-x11-utils.x86_64 0:7.5-14.el6 will be installed
--> Processing Dependency: libdmx.so.1()(64bit) for package: xorg-x11-utils-7.5-14.el6.x86_64
--> Processing Dependency: libXxf86dga.so.1()(64bit) for package: xorg-x11-utils-7.5-14.el6.x86_64
--> Running transaction check
---> Package libXxf86dga.x86_64 0:1.1.4-2.1.el6 will be installed
---> Package libdmx.x86_64 0:1.1.3-3.el6 will be installed
--> Finished Dependency Resolution
Dependencies Resolved
===============================================================================================================================================================================================================================================================================
Package Arch Version Repository Size
===============================================================================================================================================================================================================================================================================
Installing:
xorg-x11-utils x86_64 7.5-14.el6 base 101 k
Installing for dependencies:
libXxf86dga x86_64 1.1.4-2.1.el6 base 18 k
libdmx x86_64 1.1.3-3.el6 base 15 k
Transaction Summary
===============================================================================================================================================================================================================================================================================
Install 3 Package(s)
Total download size: 133 k
Installed size: 270 k
Downloading Packages:
(1/3): libXxf86dga-1.1.4-2.1.el6.x86_64.rpm | 18 kB 00:00
(2/3): libdmx-1.1.3-3.el6.x86_64.rpm | 15 kB 00:00
(3/3): xorg-x11-utils-7.5-14.el6.x86_64.rpm | 101 kB 00:00
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Total 252 kB/s | 133 kB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : libXxf86dga-1.1.4-2.1.el6.x86_64 1/3
Installing : libdmx-1.1.3-3.el6.x86_64 2/3
Installing : xorg-x11-utils-7.5-14.el6.x86_64 3/3
Verifying : libdmx-1.1.3-3.el6.x86_64 1/3
Verifying : xorg-x11-utils-7.5-14.el6.x86_64 2/3
Verifying : libXxf86dga-1.1.4-2.1.el6.x86_64 3/3
Installed:
xorg-x11-utils.x86_64 0:7.5-14.el6
Dependency Installed:
libXxf86dga.x86_64 0:1.1.4-2.1.el6 libdmx.x86_64 0:1.1.3-3.el6
Complete!
[root@orcltest ~]#
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之后再执行xdpyinfo，可以xhsot +成功，如下所示，就可以启动./runInstaller安装oracle了。
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[root@orcltest ~]# xdpyinfo
xdpyinfo: unable to open display "localhost:1".
[root@orcltest ~]# xhost + 192.51.3.12
Xhost: unable to open display "localhost:1"
[root@orcltest ~]# export DISPLAY=:1.0
[root@orcltest ~]# xhost +
access control disabled, clients can connect from any host
[root@orcltest ~]#
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总结
以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流，谢谢大家对服务器之家的支持。
原文链接：http://blog.csdn.net/mchdba/article/details/62235761