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

[DIR]linux/  direct  1000+ twin directories
[DIR]ubuntu/  direct  200+ twin directories
[DIR]CensorNet/  direct
[DIR]GentooVidalinux/  direct
[DIR].pepper/  direct
[DIR]CentOS/  direct  690+ twin directories
[DIR]bio-knoppix/  direct
[DIR]gnoppix/  direct  38 twin directories
[DIR]postgresql/  direct  950+ twin directories
[DIR]redhat/  direct  1000+ twin directories