ORACLE 11g安装中出现xhost: unable to open display问题解决步骤

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

[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"

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

   [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)

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

   [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 ~]#

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。

   [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 ~]#

总结

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