http://www.slackware.com/
https://www.freebsd.org/
http://www.netbsd.org/
https://www.opensuse.org/
https://www.suse.com/
https://cn.ubuntu.com/
http://www.ubuntukylin.com/
https://www.archlinux.org/
http://www.gd-linux.com/
https://www.deepin.com/
https://getfedora.org/en/
https://www.redhat.com/en
https://www.centos.org/
https://www.gentoo.org/https://www.debian.org/