deb http://archive-6.kali.org/kali kali main non-free contrib
deb-src http://archive-6.kali.org/kali kali main non-free contrib
deb http://archive-6.kali.org/kali-security kali/updates main contrib non-free
实测可用 2013-8-14日
/etc/apt/sources.list
apt-get update