ftp://ftp.cuhk.hk/.1/Linux/distributions/  direct

[DIR]ubuntu/  direct  634+ twin directories
[DIR]suse/  direct  3850+ twin directories
[DIR]slackware/  direct  2218+ twin directories
[DIR]redhat/  direct  7243+ twin directories
[DIR]opensuse/  direct  419+ twin directories
[DIR]mandrake/  direct  327+ twin directories
[DIR]gentoo/  direct  2190+ twin directories
[DIR]fedora/  direct  5109+ twin directories
[DIR]debian/  direct  26251+ twin directories
[DIR]centos/  direct  185 twin directories