Twin directories of 30x:

[DIR]  ftp://ftp.phys.ttu.edu/pub/SL/30x/
[DIR]  ftp://ftp.uni-jena.de/pub/linux/MIRROR.scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/linux/scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/test/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/.snapshot/NDMP_AUTO_SNAPSHOT1535/linux/scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/.snapshot/NDMP_AUTO_SNAPSHOT1531/linux/scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/.snapshot/NDMP_AUTO_SNAPSHOT1937/linux/scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/.snapshot/NDMP_AUTO_SNAPSHOT1514/linux/scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/linux/extra/linux-ink/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/.snapshot/NDMP_AUTO_SNAPSHOT1933/linux/scientific/30x/
[DIR]  ftp://ftp.sara.nl/pub/scientific_linux/30x/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/scientific/30x/
[DIR]  ftp://ftp.in2p3.fr/pub/linux/scientific/30x/
[DIR]  ftp://ftp.twaren.net/pub/Linux/Scientific/30x/
[DIR]  ftp://ftp.au.freebsd.org/disks/la1/.p/scientific/30x/
[DIR]  ftp://133.24.255.161/mirror2/scientific/30x/
[DIR]  ftp://ftp.amtp.cam.ac.uk/pub/linux/sl/upstream/30x/
[DIR]  ftp://ftp.amtp.cam.ac.uk/pub/linux/sl/local/30x/
[DIR]  ftp://ftp.up.pt/pub/scientific/30x/
[DIR]  ftp://ftp.scientificlinux.org/disk/disk4/.snapshot/NDMP_AUTO_SNAPSHOT6/linux/scientific/30x/