http://mirror.guru/centos/6.9/os/x86_64/
http://mirrors.standaloneinstaller.com/centos/6.9/os/x86_64/
http://mirror.in2p3.fr/linux/CentOS/6.9/os/x86_64/
http://mirror.plusserver.com/centos/6.9/os/x86_64/
http://distrib-coffee.ipsl.jussieu.fr/pub/linux/centos/6.9/os/x86_64/
http://centos.quelquesmots.fr/6.9/os/x86_64/
http://fr2.rpmfind.net/linux/centos/6.9/os/x86_64/
http://mirror.ibcp.fr/pub/Centos/6.9/os/x86_64/
http://mirrors.ircam.fr/pub/CentOS/6.9/os/x86_64/
http://centos.mirrors.ovh.net/ftp.centos.org/6.9/os/x86_64/