ftp://mirrors.hpcf.upr.edu/pub/Mirrors/  direct

[DIR]ubuntu/  direct  634+ twin directories
[DIR]redhat/  direct  7243+ twin directories
[DIR]postgresql/  direct  7713+ twin directories
[DIR]linux/  direct  31577+ twin directories
[DIR]gnoppix/  direct  72 twin directories
[DIR]bio-knoppix/  direct
[DIR]GentooVidalinux/  direct
[DIR]CentOS/  direct  2070+ twin directories
[DIR]CensorNet/  direct
[DIR].pepper/  direct