Twin directories of mingw:

[DIR]  ftp://sunsite.mff.cuni.cz/MIRRORS/sources.redhat.com/pub/cygwin/release-2/mingw/
[DIR]  ftp://sunsite.mff.cuni.cz/MIRRORS/sources.redhat.com/pub/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://sunsite.mff.cuni.cz/MIRRORS/sources.redhat.com/pub/cygwin/release/mingw/
[DIR]  ftp://ftp.univie.ac.at/packages/cygwin/release-2/mingw/
[DIR]  ftp://ftp.univie.ac.at/packages/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.univie.ac.at/packages/cygwin/release/mingw/
[DIR]  ftp://ftp.uni-kl.de/pub/cygwin/release-2/mingw/
[DIR]  ftp://ftp.uni-kl.de/pub/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.uni-kl.de/pub/cygwin/release/mingw/
[DIR]  ftp://ftp.li.kernel.org/pub/.3/sources.redhat.com/cygwin/release-2/mingw/
[DIR]  ftp://ftp.li.kernel.org/pub/.3/sources.redhat.com/cygwin/release/mingw/
[DIR]  ftp://ftp.iitm.ac.in/cygwin/release-2/mingw/
[DIR]  ftp://ftp.iitm.ac.in/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.iitm.ac.in/cygwin/release/mingw/
[DIR]  ftp://ftp.esat.net/mirrors/.2/sources.redhat.com/pub/cygwin/release-2/mingw/
[DIR]  ftp://ftp.esat.net/mirrors/.2/sources.redhat.com/pub/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.esat.net/mirrors/.2/sources.redhat.com/pub/cygwin/release/mingw/
[DIR]  ftp://77.88.19.68/mirrors/ftp.cygwin.com/release-2/mingw/
[DIR]  ftp://77.88.19.68/mirrors/ftp.cygwin.com/release-2/.unionfs/mingw/
[DIR]  ftp://77.88.19.68/mirrors/ftp.cygwin.com/release/mingw/
[DIR]  ftp://ftp.ps.pl/dsk0/cygwin/release-2/mingw/
[DIR]  ftp://ftp.ps.pl/dsk0/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.ps.pl/dsk0/cygwin/release/mingw/
[DIR]  ftp://gcc.gnu.org/pub/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://gcc.gnu.org/pub/cygwin/release/mingw/
[DIR]  ftp://gcc.gnu.org/pub/cygwin/release-2/mingw/
[DIR]  ftp://147.52.159.12/mirrors/cygwin/release-2/mingw/
[DIR]  ftp://147.52.159.12/mirrors/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://147.52.159.12/mirrors/cygwin/release/mingw/
[DIR]  ftp://ftp.lug.udel.edu/pub/cygwin/release-2/mingw/
[DIR]  ftp://ftp.lug.udel.edu/pub/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.lug.udel.edu/pub/cygwin/release/mingw/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.freebsd.org/pub/FreeBSD/ports/distfiles/mingw/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.sunet.se/pub/lang/cygwin/release-2/mingw/
[DIR]  ftp://ftp.nsu.ru/mirrors/ftp.sunet.se/pub/lang/cygwin/release/mingw/
[DIR]  ftp://64.50.236.52/.1/cygwin/release-2/mingw/
[DIR]  ftp://64.50.238.52/.1/cygwin/release-2/mingw/
[DIR]  ftp://64.50.236.52/.1/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://64.50.238.52/.1/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://64.50.236.52/.1/cygwin/release/mingw/
[DIR]  ftp://64.50.238.52/.1/cygwin/release/mingw/
[DIR]  ftp://ftp.uwa.edu.au/mirrors/cygwin/release-2/mingw/
[DIR]  ftp://ftp.uwa.edu.au/mirrors/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.uwa.edu.au/mirrors/cygwin/release/mingw/
[DIR]  ftp://128.118.2.96/pub/.mirrors/2/cygwin.com/cygwin/release-2/mingw/
[DIR]  ftp://128.118.2.96/pub/.mirrors/2/cygwin.com/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://128.118.2.96/pub/.mirrors/2/cygwin.com/cygwin/release/mingw/
[DIR]  ftp://ftp.kreonet.re.kr/OS/cygwin/release-2/mingw/
[DIR]  ftp://ftp.kreonet.re.kr/OS/cygwin/release-2/.unionfs/mingw/
[DIR]  ftp://ftp.kreonet.re.kr/OS/cygwin/release/mingw/