deb http://ftp.hk.debian.org/debian/ squeeze main non-free contrib
deb http://ftp.jp.debian.org/debian/ squeeze main non-free contrib
deb-src http://ftp.jp.debian.org/debian/ squeeze main non-free contrib
deb http://security.org/debian/ squeeze/updates main non-free contrib
deb-src http://security.org/debian/ squeeze/updates main non-free contrib
#squeeze-updates, previously known as 'volatile'
deb http://ftp.jp.debian.org/debian/ squeeze-updates main non-free contrib
deb-src http://ftp.jp.debian.org/debian/ squeeze-updates main non-free contrib
deb http://deb.torproject.org/torproject.org squeeze main