Debian 6 sources.list

### Debian 6.0.2 Squeeze/Stable.
    ## ------------------------------
    ### Chave GPG: sudo apt-get install debian-archive-keyring debian-keyring
    ### deb cdrom:[Debian GNU/Linux 6.0.2 _Squeeze_ - Official i386 CD Binary-1 20110322-15:11]/ squeeze main
    deb http://mirrors.geeks.org/debian/ squeeze main contrib non-free
    deb http://mirror.rit.edu/debian/ squeeze main contrib non-free

    ### Debian 6.0.2 Squeeze/Stable 'Updates'.
    deb http://security.debian.org/ squeeze/updates main contrib non-free
    deb http://ftp.br.debian.org/debian-security/ squeeze/updates main contrib non-free

    ### Debian 6.0.2 Squeeze/Stable 'Volatile'.
    ### Informações: http://www.debian.org/News/2011/20110215.pt.html
    deb http://mirrors.geeks.org/debian/ squeeze-updates main contrib non-free
    deb http://mirror.rit.edu/debian/ squeeze-updates main contrib non-free

    ### Debian 6.0.2 Squeeze/Stable 'Proposed Updates'.
    #deb http://mirrors.geeks.org/debian/ squeeze-proposed-updates main contrib non-free
    #deb http://mirror.rit.edu/debian/ squeeze-proposed-updates main contrib non-free

    ### Debian 6.0.2 Squeeze/Stable 'Multimedia'.
    ### Chave GPG: apt-get update && apt-get install debian-multimedia-keyring && apt-get update
    deb http://www.debian-multimedia.org squeeze main non-free
    deb http://ftp.br.debian.org/debian-multimedia squeeze main non-free