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Install 1 Package(s)
Total download size: 1.1 M
Installed size: 2.8 M
Is this ok [y/N]: y
Downloading Packages:
tigervnc-server-1.0.90-0.17.20110314svn4359.el6.x86_64.rpm | 1.1 MB 00:00
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
Installing : tigervnc-server-1.0.90-0.17.20110314svn4359.el6.x86_64 1/1
Installed products updated.
Verifying : tigervnc-server-1.0.90-0.17.20110314svn4359.el6.x86_64 1/1
Installed:
tigervnc-server.x86_64 0:1.0.90-0.17.20110314svn4359.el6
Complete!
再执行[root@localhost bin]# ls -l vn*
-rwxr-xr-x. 1 root root 86472 Nov 10 2011 vncconfig
-rwxr-xr-x. 1 root root 19912 Nov 10 2011 vncpasswd
-rwxr-xr-x. 1 root root 20085 Nov 10 2011 vncserver
-rwxr-xr-x. 1 root root 594840 Nov 10 2011 vncviewer
可以看到服务端需要的可执行文件都已经安装了，其中vncconfig是用于配置，vncpasswd是用于密码管理。
设置好VNC的密码之后，就可以启动VNC Server了。
[root@localhost ~]# vncserver
New 'localhost.localdomain:1 (root)' desktop is localhost.localdomain:1
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/localhost.localdomain:1.log
但此时如果想登录到界面，还需要配置：
1. 防火墙，上面显示的是:1，就需要配置5901端口：
[root@localhost ~]# iptables -I INPUT -p tcp --dport 5901 -j ACCEPT
2. 执行xhost +和配置DISPLAY，指示控制台可以显示到哪里，
[root@localhost ~]# xhost +
xhost: unable to open display ""
直接执行xhost +会提示错误，此时应先配置DISPLAY变量：
[root@localhost ~]# export DISPLAY=:0.0
再次执行：
[root@localhost ~]# xhost +
access control disabled, clients can connect from any host
客户端可以从任意host连接。
现在从本机使用vncviewer打开IP，可以显示一个图形界面，但奇怪的是只能看到一些选项，不能登录到界面：
如果配置VNC图形桌面环境为KDE或GNOME桌面环境，还需要配置一个xstartup文件，
[root@testdb ~]# vi ??http://www.2cto.com/kf/ware/vc/" target="_blank" class="keylink">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"localhost.localdomain:1 (root)' desktop is localhost.localdomain:1
Starting applications specified in /root/.vnc/xstartup
Log file is /root/.vnc/localhost.localdomain:1.log
再次使用vncviewer登录，就可以看到图形界面了。
场景2：系统配置参数
Linux安装Oracle，我认为最繁琐的地方就是设置系统配置参数，但Oracle 11g提供了更简洁的方法：
系统参数，对于广大用户来说，绝对是件好事。
[root@localhost CVU_11.2.0.1.0_ora11g]# ./runfixup.sh
Response file being used is :./fixup.response
Enable file being used is :./fixup.enable
Log file location: ./orarun.log
Setting Kernel Parameters...
kernel.sem = 250 32000 100 128
fs.file-max = 6815744
net.ipv4.ip_local_port_range = 9000 65500
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