[Ubuntu]Ubuntu11.10 Firewall

Linux doesn't need to install antivirus,you can open the firewall to protect your computer.
There are two ways to open firewall in Ubuntu 11.10
1.GUI firewall configuration
Search firewall in Software center and install  firewall configuration

Then,you can  open the firewall and modify your firewall setting by using firewall configuration

2.Open firewall by terminal

 To open:                                                Close:                                                To check your firewall status:

 sudo ufw enable                                    sudo ufw disable                               sudo ufw status

 To open a port:                                      close an opened port:

 sudo ufw allow 22                                  sudo ufw deny 22

Although Linux doesn't need to install antivirus,you can install it to check your whether has virus in windows.
Search ClamTK in Software Center and install it OR you can install AVG linux edition manually.

To improve your security,you can install SELinux.

[Linux]Tutorial for installing ubuntu 11.10( Ubtuntu 11.10 安裝教學 )

First,go to ubuntu website download ubtuntu 11.10 ISO,you can burn it in CD/USB.
首先到ubuntu官方網站下載 ubuntu 11.10 ISO,然後燒錄到CD/USB.
 http://www.ubuntu.com/download/ubuntu/download


Then,change your boot priority in bios.

 然後設定用CD/USB作優先啟動

Restart your computer,press DEL/F12/F2 or others(depends on brand of pc) to enter to the BIOS utility.

重新開機,按DEL/F12/F2/其他(不同牌子的電腦進入方法不同) 進入BIOS.

Go to Boot Priority

Select the first boot is CD-ROM/DVD.
Like the picture below.

Save before you exit.

Push your ubuntu CD to CD-ROM/DVD-ROM and restart
放入UBUNTU CD及重新開機


 If you success,you will see this,then press start.
然後會看到這畫面,按enter

Choose your language of installation.

選擇你的安裝語言

Then,Choose Install Ubuntu

選擇你的安裝Ubuntu

Choose your System language and install
選擇你的系統語言及安裝

Installation of Ubuntu 11.10 needs network connection,so connect your network
安裝Ubuntu 11.10需要網路連接,所以連接你的電腦



If you are installed windows,i suggest [Install Ubuntu 11.10 alongside OS]
You can modify your partition by choosing [Something else]
如果你的電腦已安裝windows,建議『將 Ubuntu 11.10 與 Windows xx 安裝在一起』 
你可以自行設定硬碟分割  [其他]

Warning: Take care,wrong selection will erase all of your information in your hard-disk.
               Please choose your selection depends on your situation.
警告:錯誤選擇可能會清除你硬碟中所有資料,請按你的需要選擇 

After some personal setting and installation,then you can use your own ubuntu.

設定你個人設定,等待安裝完全即可