Twin directories of firewalls:

[DIR]  ftp://ftp.kfki.hu/pub/packages/security/COAST/firewalls/
[DIR]  ftp://ftp.lanet.lv/pub/unix/security/firewalls/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/security/coast.cs.purdue.edu/unix/firewalls/
[DIR]  ftp://ftp.dntis.ro/pub/.1/ftp.hacktic.nl/security/coast.cs.purdue.edu/windows/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/de_DE.ISO8859-1/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/el_GR.ISO8859-7/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/en_US.ISO8859-1/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/es_ES.ISO8859-1/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/fr_FR.ISO8859-1/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/hu_HU.ISO8859-2/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/it_IT.ISO8859-15/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/mn_MN.UTF-8/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/nl_NL.ISO8859-1/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/pl_PL.ISO8859-2/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/ru_RU.KOI8-R/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/zh_CN.GB2312/books/handbook/firewalls/
[DIR]  ftp://ftp13.freebsd.org/cvsup/ncvs/doc/zh_TW.Big5/books/handbook/firewalls/
[DIR]  ftp://ftp.urc.ac.ru/pub/OS/Windows/net/firewalls/
[DIR]  ftp://ftp.starhub.net.sg/pub/funet/unix/security/firewalls/
[DIR]  ftp://ftp.man.lodz.pl/pub/security/firewalls/
[DIR]  ftp://ftp.tomsknet.ru/pub/security/coast/doc/firewalls/
[DIR]  ftp://ftp.pitt.edu/users/t/m/tml/.MESSAGES/tmlbb/mlists/firewalls/
[DIR]  ftp://ftp.ausmac.net/disk1/security/firewalls/
[DIR]  ftp://ftp.ausmac.net/disk1/security/info/papers/firewalls/
pkg://daxfi-0.9.tar.gz:299107/daxfi-0.8/modules/daxfi/  downloads[DIR]3  daxfi-0.9.tar.gz/daxfi-0.8/modules/daxfi/firewalls/
pkg://daxfi-0.9.tar.gz:299107/daxfi-0.8/docs/lib/daxfi/  downloads[DIR]3  daxfi-0.9.tar.gz/daxfi-0.8/docs/lib/daxfi/firewalls/
pkg://daxfi-1.0.tar.gz:278135/daxfi-0.9/modules/daxfi/  downloads[DIR]3  daxfi-1.0.tar.gz/daxfi-0.9/modules/daxfi/firewalls/
pkg://daxfi-1.0.tar.gz:278135/daxfi-0.9/docs/lib/daxfi/  downloads[DIR]3  daxfi-1.0.tar.gz/daxfi-0.9/docs/lib/daxfi/firewalls/
pkg://daydream_bbs-v2.04.tar.gz:456748/daxfi-1.0/modules/daxfi/  downloads[DIR]3  daydream_bbs-v2.04.tar.gz/daxfi-1.0/modules/daxfi/firewalls/
pkg://daydream_bbs-v2.04.tar.gz:456748/daxfi-1.0/docs/lib/daxfi/  downloads[DIR]3  daydream_bbs-v2.04.tar.gz/daxfi-1.0/docs/lib/daxfi/firewalls/
[DIR]  ftp://ftp.cs.nott.ac.uk/sites/rtfm.mit.edu/pub/usenet-by-hierarchy/comp/security/firewalls/
[DIR]  ftp://ftp.scn.rain.com/pub/security/firewalls/
[DIR]  ftp://sunsite.mff.cuni.cz/MIRRORS/ftp.funet.fi/pub/unix/security/firewalls/
[DIR]  ftp://ftp.wuppy.net.ru/src/security/firewalls/
[DIR]  ftp://net.tamu.edu/pub/FreeBSD/3.4-RELEASE/packages/firewalls/
[DIR]  ftp://net.tamu.edu/pub/FreeBSD/4.0-RELEASE/packages/firewalls/
[DIR]  ftp://ftp.ntnu.no/old/pub/unix/security/firewalls/
[DIR]  ftp://ftp.sdsc.edu/pub/mirrors/coast.cs.purdue.edu/pub/tools/unix/firewalls/
[DIR]  ftp://ftp.csie.nctu.edu.tw/pub/Documents/FAQ/usenet-by-hierarchy/comp/security/firewalls/
[DIR]  ftp://ftp.su.se/pub/security/firewalls/
[DIR]  ftp://ftp.tux.org/net/greatcircle/firewalls/
pkg://ossec-hids-1.3.tar.gz:553438/ossec-hids-1.2/active-response/  downloads[DIR]3  ossec-hids-1.3.tar.gz/ossec-hids-1.2/active-response/firewalls/
pkg://ossec-hids-1.4-1mdv2008.1.i586.rpm:42452/ossec-hids-1.3/active-response/  info  downloads[DIR]3  ossec-hids-1.4-1mdv2008.1.i586.rpm/ossec-hids-1.3/active-response/firewalls/
pkg://ossec-hids-client-1.2.tbz:356996/ossec-hids-1.4/active-response/  downloads[DIR]3  ossec-hids-client-1.2.tbz/ossec-hids-1.4/active-response/firewalls/
pkg://ossec-hids-client-1.2.tbz:502122/ossec-hids/active-response/bin/  downloads[DIR]3  ossec-hids-client-1.2.tbz/ossec-hids/active-response/bin/firewalls/
pkg://ossec-hids-client-1.3.tbz:377669/ossec-hids/active-response/bin/  downloads[DIR]3  ossec-hids-client-1.3.tbz/ossec-hids/active-response/bin/firewalls/
[DIR]3  ossec-hids-client-1.3.tbz/ossec-hids/active-response/bin/firewalls/
[DIR]3  ossec-hids-client-1.3.tbz/ossec-hids/active-response/bin/firewalls/
[DIR]3  ossec-hids-client-1.3.tbz/ossec-hids/active-response/bin/firewalls/
[DIR]3  ossec-hids-client-1.3.tbz/ossec-hids/active-response/bin/firewalls/