像我這種一般想起才玩玩BT5的人，跟不上訊息的變化。
偶爾想嘗試某個實驗，然後去安裝，發現提示無法找到軟件安裝包。
這個時候，應該注意到，現在已經從BT5到kali了，假如想我這種人，肯定比較少留意軟件源地址。原來的BT5的軟件源有些已經跟不上了。所以我們應該修改BT5下的軟件源
123456789 vi /etc/apt/sources.list
#將下列地址復制進去就好
deb http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security kali/updates main contrib non-free
#然後我們導入公鑰
sudo apt-key adv --keyserver pgp.mit.edu --recv-keys ED444FF07D8D0BF6
#之後我們更新一下，
apt-get update
上面這個是中科大的軟件源
下面給出軟件源的列表
中科大軟件源
deb http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb-src http://mirrors.ustc.edu.cn/kali kali main non-free contrib
deb http://mirrors.ustc.edu.cn/kali-security kali/updates main contrib non-free
kali官方源的地址：
deb http://http.kali.org/kali kali main non-free contrib
deb-src http://http.kali.org/kali kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free
kali新加坡源的地址：
deb http://mirror.nus.edu.sg/kali/kali/ kali main non-free contrib
deb-src http://mirror.nus.edu.sg/kali/kali/ kali main non-free contrib
deb http://security.kali.org/kali-security kali/updates main contrib non-free
deb http://mirror.nus.edu.sg/kali/kali-security kali/updates main contrib non-free
deb-src http://mirror.nus.edu.sg/kali/kali-security kali/updates main contrib non-free
kali國內源的地址：
deb http://ftp.sjtu.edu.cn/debian wheezy main non-free contrib
deb-src http://ftp.sjtu.edu.cn/debian wheezy main non-free contrib
deb http://ftp.sjtu.edu.cn/debian wheezy-proposed-updates main non-free contrib
deb-src http://ftp.sjtu.edu.cn/debian wheezy-proposed-updates main non-free contrib
deb http://ftp.sjtu.edu.cn/debian-security wheezy/updates main non-free contrib
deb-src http://ftp.sjtu.edu.cn/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian wheezy main non-free contrib
deb-src http://mirrors.163.com/debian wheezy main non-free contrib
deb http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian wheezy-proposed-updates main non-free contrib
deb-src http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
deb http://mirrors.163.com/debian-security wheezy/updates main non-free contrib
我們最好使用中科大或者國內的！
