ICMP(錯誤偵測與回報機制)

http://www.pcnet.idv.tw/pcnet/network/network_ip_icmp.htm

virtual box in fedora 14

reference
http://linux-cisco.blogspot.com/2008/01/fedora-8virtualbox.html

>rpm -ivh VirtualBox-4.0-4.0.2_69518_fedora14-1.i686.rpm


錯誤：相依性偵測失敗：
    libQtCore.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libQtGui.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libQtNetwork.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libQtOpenGL.so.4 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要
    libSDL-1.2.so.0 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要





download "oracle_vbox.asc" key for virtualbox:
http://download.virtualbox.org/virtualbox/debian/oracle_vbox.asc

>su - apt-key add oracle_vbox.asc

否則會出現類似警告
warning: VirtualBox-3.2-3.2.6_63112_fedora13-1.i686.rpm: Header V4 DSA/SHA1 Signature, key ID 98ab5139: NOKEY



update fedora:
>yum update

install Qt:
>yum install qt
>yum install qt-devel

錯誤：相依性偵測失敗：
    libSDL-1.2.so.0 被 VirtualBox-4.0-4.0.2_69518_fedora14-1.i686 所需要


yum install SDL

錯誤：can't create transaction lock on /var/lib/rpm/.rpm.lock (沒有此一檔案或目錄)
只要用最高權限安裝就不會出現了



DKMS packeage install:
http://linuxhub.net/2009/08/install-dkms-virtualbox-driver-not-installed-error-after-updating-to-new-linux-kernel/

>yum install dkms


error:
ref:http://webcache.googleusercontent.com/search?q=cache:79uWE8G1FjsJ:fedoraforum.org/forum/showthread.php%3Ft%3D255773+fedora+virtualbox+Error!+Your+kernel+source+for+kernel+2.6.35.6-45.fc14.i686+cannot+be+found+at+/lib/modules/2.6.35.6-45.fc14.i686/build+or+/lib/modules/2.6.35.6-45.fc14.i686/source.&cd=2&hl=zh-TW&ct=clnk&gl=tw&client=firefox-a&source=www.google.com.tw


fedora virtualbox Error! Your kernel source for kernel 2.6.35.6-45.fc14.i686 cannot be found at /lib/modules/2.6.35.6-45.fc14.i686/build or /lib/modules/2.6.35.6-45.fc14.i686/source.

>yum install kernel-devel kernel-headers gcc
>yum groupinstall 'Development Tools'
>/etc/init.d/vboxdrv setup

 fedora13成功範例
http://forums.fedoraforum.org/showthread.php?t=245638

Ferora安裝flash player

 參考資料

http://www.wretch.cc/blog/Likao/24774290

原本在 Linux 視窗介面下安裝插件是一件很容易的事~
只要雙擊 .rpm 檔就可以自動安裝了~
但是不知道為什麼，用這樣子的方式安裝插件包~
常常會莫名其妙的安裝失敗~
在上網搜尋過後~
發現還是以輸入指令的方式安裝比較"穩"~!!


安裝步驟如下：

1.去 Adobe 的官網下載 flash player 的 .rpm 檔。

2.打開終端機 cd 到該 .rpm 檔的路徑底下，輸入以下指令：

shell>> su -c "yum localinstall --nogpg *.rpm"

然後輸入 root 的密碼照著提示操作就安裝完成了。

[jim@jimfedora download]$ su -c "yum localinstall --nogpg *.rpm"

Loaded plugins: langpacks, presto, refresh-packagekit
Adding zh_TW to language list
Setting up Local Package Process
Examining flash-plugin-10.2.152.27-release.i386.rpm: flash-plugin-10.2.152.27-release.i386
Marking flash-plugin-10.2.152.27-release.i386.rpm to be installed
fedora/metalink                                          |  13 kB     00:00    
fedora                                                   | 4.3 kB     00:00    
fedora/primary_db                                        |  11 MB     00:02    
updates/metalink                                         | 4.1 kB     00:00    
updates                                                  | 4.7 kB     00:00    
updates/primary_db                                       | 3.5 MB     00:36    
Resolving Dependencies
--> Running transaction check
---> Package flash-plugin.i386 0:10.2.152.27-release set to be installed
--> Finished Dependency Resolution

Dependencies Resolved

================================================================================
 Package  Arch Version             Repository                              Size
================================================================================
Installing:
 flash-plugin
          i386 10.2.152.27-release /flash-plugin-10.2.152.27-release.i386  12 M

Transaction Summary
================================================================================
Install       1 Package(s)

Total size: 12 M
Installed size: 12 M
Is this ok [y/N]: y
Downloading Packages:
Running rpm_check_debug
Running Transaction Test
Transaction Test Succeeded
Running Transaction
  Installing     : flash-plugin-10.2.152.27-release.i386                    1/1

Installed:
  flash-plugin.i386 0:10.2.152.27-release                                      

Complete!
[jim@jimfedora download]$