ftp://64.50.238.52/.1/centos/4.6/os/  direct

[DIR]i386/  direct  65535+ twin directories
[DIR]x86_64/  direct  65535+ twin directories
[DIR]s390x/  direct  4905+ twin directories
[DIR]s390/  direct  10525+ twin directories
[DIR]ia64/  direct  32506+ twin directories
[DIR]alpha/  direct  31066+ twin directories