Twin directories of infosystems:

[DIR]  ftp://147.52.159.12/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/NEXTSTEP/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/NEXTSTEP/connectivity/commandline/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/ftp.nice.ch/pub/next/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/ftp.nice.ch/pub/next/unix/network/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/NeXT_Mirrors/NEXTSTEP/connectivity/infosystems/
[DIR]  ftp://ftp.cs.nott.ac.uk/sites/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.informatik.uni-hamburg.de/pub/soft/infosystems/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/ns/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/ns/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/NeXT_Mirrors/Peanuts/NEXTSTEP/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/NeXT_Mirrors/Peanuts/NEXTSTEP/connectivity/commandline/infosystems/
[DIR]  ftp://ftp.eq.uc.pt/pub/usenet/faq/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.eq.uc.pt/pub/usenet/faq/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.lf.net/pub/comm/infosystems/
[DIR]  ftp://ftp.lf.net/pub/unix/infosystems/
[DIR]  ftp://ftp.lf.net/pub/unix/comm/infosystems/
[DIR]  ftp://ftp.enst.fr/pub/infosystems/
[DIR]  ftp://ftp.informatik.rwth-aachen.de/pub/mirror/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.unimelb.edu.au/pub/usenet-FAQs/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.unimelb.edu.au/pub/usenet-FAQs/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.gwdg.de/pub/rtfm/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.mcs.vuw.ac.nz/_mnt/archive/comp/infosystems/
[DIR]  ftp://ftp.dotsrc.org/pub/infosystems/
[DIR]  ftp://ftp.funet.fi/.m/mirrors2/bsdi.com/contrib/infosystems/
[DIR]  ftp://ftp.win.tue.nl/pub/home/rp/infosystems/
[DIR]  ftp://ftp.relc.com/unix/infosystems/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.informatik.rwth-aachen.de/pub/mirror/rtfm.mit.edu/pub/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.gwdg.de/pub/rtfm/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://147.52.159.12/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/NEXTSTEP/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/NEXTSTEP/connectivity/commandline/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/ftp.nice.ch/pub/next/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/ftp.nice.ch/pub/next/unix/network/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/NeXT_Mirrors/NEXTSTEP/connectivity/infosystems/
[DIR]  ftp://ftp.cs.nott.ac.uk/sites/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.informatik.uni-hamburg.de/pub/soft/infosystems/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/ns/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/Peanuts/ns/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/NeXT_Mirrors/Peanuts/NEXTSTEP/connectivity/infosystems/
[DIR]  ftp://ftp.blackcube.org/pub/NeXT_Mirrors/Peanuts/NEXTSTEP/connectivity/commandline/infosystems/
[DIR]  ftp://ftp.eq.uc.pt/pub/usenet/faq/usenet-by-hierarchy/comp/infosystems/
[DIR]  ftp://ftp.eq.uc.pt/pub/usenet/faq/usenet-by-hierarchy/de/comm/infosystems/
[DIR]  ftp://ftp.lf.net/pub/comm/infosystems/