Twin directories of viper:

[DIR]  ftp://ftp.uni-leipzig.de/pub/linux/pub/comp/os/linux/sunsite/X11/viper/
[DIR]  ftp://ftp.skynet.be/mirror1/debian.org/pool/main/v/viper/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/debian/pool/main/v/viper/
[DIR]  ftp://ftp.prz.rzeszow.pl/pub/gentoo/portage/app-xemacs/viper/
[DIR]  ftp://ftp.3logic.net/.1/debian/pool/main/v/viper/
[DIR]  ftp://ftp.nz.debian.org/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.nz.debian.org/debian/pool/main/v/viper/
[DIR]  ftp://ftp.nz.debian.org/gentoo-x86-portage/app-xemacs/viper/
[DIR]  ftp://ftp.uni-stuttgart.de/pub/mirror/ftp.de.debian.org/debian/pool/main/v/viper/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-release-4-0/src/sys/arch/evbarm/viper/
[DIR]  ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/NetBSD-current/src/sys/arch/evbarm/viper/
[DIR]  ftp://ftp.port80.se/debian/pool/main/v/viper/
[DIR]  ftp://ftp.kulnet.kuleuven.ac.be/mirror/ftp.debian.org/debian/pool/main/v/viper/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/ubuntu/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.wh2.tu-dresden.de/pub/mirrors/debian/pool/main/v/viper/
[DIR]  ftp://ftp.cosy.sbg.ac.at/debian/pool/main/v/viper/
[DIR]  ftp://ftp.swin.edu.au/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.mgts.by/pub/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.mgts.by/pub/gentoo/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.mgts.by/pub/debian/pool/main/v/viper/
[DIR]  ftp://24.215.0.24/Debian/debian/pool/main/v/viper/
[DIR]  ftp://24.215.0.24/Ubuntu/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.cs.mun.ca/pub/mirror/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.cs.mun.ca/pub/mirror/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.eskimo.com/u/v/viper/
[DIR]  ftp://ftp.fr.debian.org/debian/pool/main/v/viper/
[DIR]  ftp://sapi.vlsm.org/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-release-4-0/src/sys/arch/evbarm/viper/
[DIR]  ftp://ftp.sk.freebsd.org/pub/NetBSD/NetBSD-current/src/sys/arch/evbarm/viper/
[DIR]  ftp://ftp.mars.org/debian/pool/main/v/viper/
[DIR]  ftp://c64.rulez.org/pub/c64/Hall_of_Fame/demofiles/v/viper/
[DIR]  ftp://ftp.ps.pl/dsk0/ftp.debian.org/pool/main/v/viper/
[DIR]  ftp://91.189.88.46/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.free.fr/.mirrors6/ftp.ubuntu.com/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-release-4-0/src/sys/arch/evbarm/viper/
[DIR]  ftp://ftp.free.fr/.mirrors1/ftp.netbsd.org/NetBSD-current/src/sys/arch/evbarm/viper/
[DIR]  ftp://ftp.ccs.neu.edu/net/mirrors/archive.ubuntu.com/pool/universe/v/viper/
[DIR]  ftp://ftp13.freebsd.org/pub/debian/pool/main/v/viper/
[DIR]  ftp://ftp.ankara.edu.tr/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.fi.debian.org/pub/debian/pool/main/v/viper/
[DIR]  ftp://ftp.fi.debian.org/pub/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.rz.tu-bs.de/pub/mirror/ALL_primary_servers/rsync/mirrors.sec.informatik.tu-darmstadt.de/gentoo-portage/app-xemacs/viper/
[DIR]  ftp://ftp.rz.tu-bs.de/pub/mirror/.mounts/sdc1/archive.ubuntu.com/ubuntu/pool/universe/v/viper/
[DIR]  ftp://ftp.zcu.cz/pub/linux/debian/pool/main/v/viper/
[DIR]  ftp://ftp.auckland.ac.nz/linux/dists/debian/pool/main/v/viper/
[DIR]  ftp://ftp.cvut.cz/mirrors/debian.org/pool/main/v/viper/
[DIR]  ftp://ftp.univ-savoie.fr/pub1/ftp.fr.debian.org/debian/pool/main/v/viper/
[DIR]  ftp://mirrors.hpcf.upr.edu/pub/Mirrors/ubuntu/archive/pool/universe/v/viper/
[DIR]  ftp://ftp.med.univ-tours.fr/debian/pool/main/v/viper/