Twin directories of ltt:

[DIR]  ftp://ftp.inf.utfsm.cl/pub/tex-archive/info/examples/ltt/
[DIR]  ftp://debian.lcs.mit.edu/pub/debian-amd64/debian-amd64/pool/main/l/ltt/
[DIR]  ftp://debian.lcs.mit.edu/pub/debian-amd64/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.kfki.hu/pub/linux/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.kreonet.re.kr/CTAN/info/examples/ltt/
[DIR]  ftp://ftp.lcs.mit.edu/ltt/web_pages/ltt/
[DIR]  ftp://ftp.lcs.mit.edu/ltt/
[DIR]  ftp://ftp.3logic.net/.1/debian-archive/pool/main/l/ltt/
[DIR]  ftp://ftp.wustl.edu/pub/linux/distributions/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.nz.debian.org/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/linux/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.port80.se/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.cs.iastate.edu/pub/linux/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.uni-koeln.de/tex/info/ltt/
[DIR]  ftp://130.251.19.2/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://130.251.19.2/debian-amd64/pool/main/l/ltt/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/ubuntu/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/latex/dante/info/examples/ltt/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/debian-amd64/debian-amd64/pool/main/l/ltt/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/debian-amd64/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.uni-kassel.de/Mirrors/archive.ubuntu.com/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://24.215.0.24/CTAN/info/examples/ltt/
[DIR]  ftp://24.215.0.24/Ubuntu/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.sztaki.hu/pub/tex/info/examples/ltt/
[DIR]  ftp://ftp.tug.ctan.org/pub/tex-archive/info/examples/ltt/
[DIR]  ftp://ftp.cs.mun.ca/pub/mirror/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.fr.debian.org/debian-amd64/pool/main/l/ltt/
[DIR]  ftp://sapi.vlsm.org/.1/debian/pool/main/l/ltt/
[DIR]  ftp://sapi.vlsm.org/.3/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://15.217.49.75/ftp1/pub/tape/ltt/
[DIR]  ftp://91.189.88.31/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://91.189.88.46/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.free.fr/.mirrors6/ftp.ubuntu.com/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://15.192.45.22/ftp1/pub/tape/ltt/
[DIR]  ftp://15.192.45.22/ftp2/pub/information_storage/software/ltt/
[DIR]  ftp://15.192.45.22/ftp2/pub/information_storage/ltt/
[DIR]  ftp://ftp.ccs.neu.edu/net/mirrors/archive.ubuntu.com/pool/universe/l/ltt/
[DIR]  ftp://ftp.uni-duesseldorf.de/pub/unix/linux/distributions/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.net.usf.edu/pub3/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.rz.tu-bs.de/pub/mirror/.mounts/sdc1/archive.ubuntu.com/ubuntu/pool/universe/l/ltt/
[DIR]  ftp://ftp.phys.ttu.edu/pub/ubuntu-mirror/pool/universe/l/ltt/
[DIR]  ftp://ftp.auckland.ac.nz/linux/dists/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.tu-ilmenau.de/Mirrors/tex/info/examples/ltt/
[DIR]  ftp://ftp.tu-ilmenau.de/Mirrors/ftp.de.debian.org/debian-amd64/debian-amd64/pool/main/l/ltt/
[DIR]  ftp://ftp.tu-ilmenau.de/Mirrors/ftp.de.debian.org/debian-amd64/debian/pool/main/l/ltt/
[DIR]  ftp://ftp.cvut.cz/mirrors/ubuntu.com/pool/universe/l/ltt/
[DIR]  ftp://ftp.cvut.cz/mirrors/ctan.org/info/examples/ltt/
[DIR]  ftp://ftp.csie.chu.edu.tw/pub2/Debian/pool/main/l/ltt/
[DIR]  ftp://161.53.160.16/debian-amd64/pool/main/l/ltt/
[DIR]  ftp://ftp.int-evry.fr/mirror4/ubuntu.com/ubuntu/pool/universe/l/ltt/