diff --git a/security/Makefile b/security/Makefile
index 5f80bb583a8d..916f50bc5b79 100644
--- a/security/Makefile
+++ b/security/Makefile
@@ -133,6 +133,7 @@
     SUBDIR += libksba
     SUBDIR += libmcrypt
     SUBDIR += libparanoia
+    SUBDIR += libprelude
     SUBDIR += libtasn1
     SUBDIR += liedentd
     SUBDIR += logcheck
diff --git a/security/libprelude/Makefile b/security/libprelude/Makefile
new file mode 100644
index 000000000000..fa64e39d3b8b
--- /dev/null
+++ b/security/libprelude/Makefile
@@ -0,0 +1,44 @@
+# New ports collection makefile for:	libprelude
+# Date created:			Sun Aug 4 19:31:17 CEST 2002
+# Whom:				Clement Laforet <sheepkiller@cultdeadsheep.org>
+# $FreeBSD$
+
+PORTNAME=	libprelude
+PORTVERSION=	0.8.5
+CATEGORIES=	security
+MASTER_SITES=   http://www.prelude-ids.org/download/releases/
+
+MAINTAINER=	sheepkiller@cultdeadsheep.org
+COMMENT=	Prelude Network Intrusion Detection System librairies
+
+USE_REINPLACE=		yes
+GNU_MAKE=		yes
+GNU_CONFIGURE=		yes
+USE_AUTOCONF=		yes
+WANT_AUTOCONF_VER=	253
+INSTALLS_SHLIB=		yes
+CONFIGURE_ARGS+=	--with-html-dir=${PREFIX}/share/doc \
+			--program-prefix="" --localstatedir=/var
+
+.if defined(WITHOUT_SSL)
+CONFIGURE_ARGS+= 	--disable-openssl
+.else
+USE_OPENSSL=            YES
+.endif
+
+post-extract:
+	@${ECHO} ""
+	@${ECHO} "*------------------------------------------------------------------*"
+	@${ECHO} "Options:"
+	@${ECHO} ""
+	@${ECHO} "      WITHOUT_SSL=yes         Disable SSL support in libprelude"
+	@${ECHO} "*------------------------------------------------------------------*"
+	@${ECHO} ""
+
+pre-configure:
+	@${REINPLACE_CMD} 's!\$(prefix)/libprelude/include!\$(prefix)/include/libprelude!' \
+			${WRKSRC}/Makefile.in
+	@${ECHO} "===> Regenerating libltdl configure script (Please wait...)"
+	@(cd ${WRKSRC}/libltdl ; autoconf)
+
+.include <bsd.port.mk>
diff --git a/security/libprelude/distinfo b/security/libprelude/distinfo
new file mode 100644
index 000000000000..f30e13afad38
--- /dev/null
+++ b/security/libprelude/distinfo
@@ -0,0 +1 @@
+MD5 (libprelude-0.8.5.tar.gz) = 058a375229af13e30761c45f0d76adbe
diff --git a/security/libprelude/files/patch-Makefile.in b/security/libprelude/files/patch-Makefile.in
new file mode 100644
index 000000000000..89f5d1a6dc61
--- /dev/null
+++ b/security/libprelude/files/patch-Makefile.in
@@ -0,0 +1,21 @@
+--- Makefile.in.orig	Sat Jun  7 09:55:05 2003
++++ Makefile.in	Sat Jun  7 09:56:20 2003
+@@ -429,17 +429,7 @@
+ 	$(INSTALL) -d -m 755 $(DESTDIR)/$(sensors_config_dir);
+ 	$(INSTALL) -d -m 755 $(DESTDIR)/$(sensors_config_dir)/ssl;
+ 	$(INSTALL) -d -m 755 $(DESTDIR)/$(sensors_config_dir)/plaintext;
+-	@if test -f $(DESTDIR)/$(sensors_config_dir)/sensors-default.conf; then                                   		\
+-		echo "********************************************************************************";          		\
+-                echo;                                                                                             		\
+-                echo "$(DESTDIR)/$(sensors_config_dir)/sensors-default.conf already exist...";					\
+-                echo "Installing default configuration in $(DESTDIR)/$(sensors_config_dir)/sensors-default.conf-dist";		\
+-                echo;                                                                                             		\
+-                echo "********************************************************************************";          		\
+-		$(INSTALL) -m 644 $(top_srcdir)/sensors-default.conf $(DESTDIR)/$(sensors_config_dir)/sensors-default.conf-dist;\
+-        else                                                                                                      		\
+-                $(INSTALL) -m 644 $(top_srcdir)/sensors-default.conf $(DESTDIR)/$(sensors_config_dir)/;        			\
+-        fi
++	$(INSTALL) -m 644 $(top_srcdir)/sensors-default.conf $(DESTDIR)/$(sensors_config_dir)/sensors-default.conf-dist;
+ 
+ # Tell versions [3.59,3.63) of GNU make to not export all variables.
+ # Otherwise a system limit (for SysV at least) may be exceeded.
diff --git a/security/libprelude/pkg-descr b/security/libprelude/pkg-descr
new file mode 100644
index 000000000000..5d58775683e6
--- /dev/null
+++ b/security/libprelude/pkg-descr
@@ -0,0 +1,7 @@
+Prelude is a new innovative hybrid Intrusion Detection system designed 
+to be very modular, distributed, rock solid and fast. 
+
+This library provides a number of features to sensors, including 
+communication with the manager.
+
+WWW: http://www.prelude-ids.org/
diff --git a/security/libprelude/pkg-plist b/security/libprelude/pkg-plist
new file mode 100644
index 000000000000..7a3489305c21
--- /dev/null
+++ b/security/libprelude/pkg-plist
@@ -0,0 +1,86 @@
+bin/sensor-adduser
+bin/libprelude-config
+@unexec [ -f %D/etc/prelude-sensors/sensors-default.conf-dist ] && rm %D/etc/prelude-sensors/sensors-default.conf-dist || true
+include/libprelude/config-engine.h
+include/libprelude/idmef-message-id.h
+include/libprelude/idmef-tree.h
+include/libprelude/idmef-tree-func.h
+include/libprelude/idmef-msg-send.h
+include/libprelude/plugin-common.h
+include/libprelude/plugin-common-prv.h
+include/libprelude/ssl-gencrypto.h
+include/libprelude/ssl-settings.h
+include/libprelude/ssl-registration-msg.h
+include/libprelude/daemonize.h
+include/libprelude/string-matching.h
+include/libprelude/timer.h
+include/libprelude/list.h
+include/libprelude/variable.h
+include/libprelude/prelude-auth.h
+include/libprelude/prelude-list.h
+include/libprelude/prelude-client.h
+include/libprelude/prelude-client-mgr.h
+include/libprelude/prelude-getopt.h
+include/libprelude/prelude-getopt-wide.h
+include/libprelude/prelude-io.h
+include/libprelude/prelude-message.h
+include/libprelude/prelude-message-buffered.h
+include/libprelude/prelude-message-id.h
+include/libprelude/prelude-async.h
+include/libprelude/prelude-ident.h
+include/libprelude/prelude-path.h
+include/libprelude/prelude-log.h
+include/libprelude/sensor.h
+include/libprelude/threads.h
+include/libprelude/extract.h
+include/libprelude/common.h
+include/libprelude/config.h
+lib/libprelude.so.0
+lib/libprelude.so
+lib/libprelude.la
+share/doc/libprelude/c4.html
+share/doc/libprelude/index.html
+share/doc/libprelude/libprelude-client-ident.html
+share/doc/libprelude/libprelude-common.html
+share/doc/libprelude/libprelude-config-engine.html
+share/doc/libprelude/libprelude-daemonize.html
+share/doc/libprelude/libprelude-extract.html
+share/doc/libprelude/libprelude-idmef-message-id.html
+share/doc/libprelude/libprelude-idmef-msg-send.html
+share/doc/libprelude/libprelude-idmef-tree-func.html
+share/doc/libprelude/libprelude-idmef-tree.html
+share/doc/libprelude/libprelude-list.html
+share/doc/libprelude/libprelude-plugin-common-prv.html
+share/doc/libprelude/libprelude-prelude-io.html
+share/doc/libprelude/libprelude-plugin-common.html
+share/doc/libprelude/libprelude-prelude-async.html
+share/doc/libprelude/libprelude-prelude-auth.html
+share/doc/libprelude/libprelude-prelude-client-mgr.html
+share/doc/libprelude/libprelude-prelude-client.html
+share/doc/libprelude/libprelude-prelude-getopt-wide.html
+share/doc/libprelude/libprelude-prelude-getopt.html
+share/doc/libprelude/libprelude-prelude-ident.html
+share/doc/libprelude/libprelude-prelude-list.html
+share/doc/libprelude/libprelude-prelude-log.html
+share/doc/libprelude/libprelude-prelude-message-buffered.html
+share/doc/libprelude/libprelude-prelude-message-id.html
+share/doc/libprelude/libprelude-prelude-message.html
+share/doc/libprelude/libprelude-prelude-path.html
+share/doc/libprelude/libprelude-sensor.html
+share/doc/libprelude/libprelude-ssl-gencrypto.html
+share/doc/libprelude/libprelude-ssl-registration-msg.html
+share/doc/libprelude/libprelude-ssl-settings.html
+share/doc/libprelude/libprelude-ssl.html
+share/doc/libprelude/libprelude-string-matching.html
+share/doc/libprelude/libprelude-threads.html
+share/doc/libprelude/libprelude-timer.html
+share/doc/libprelude/libprelude-variable.html
+share/doc/libprelude/index.sgml
+@unexec rmdir %D/etc/prelude-sensors/ssl 2>/dev/null || true
+@unexec rmdir %D/etc/prelude-sensors/plaintext 2>/dev/null || true
+@unexec rmdir %D/etc/prelude-sensors 2>/dev/null || echo "If you are permanently removing this port, you should do a ``rm -rf ${PKG_PREFIX}/etc/prelude-sensors`` to remove any configuration files left." | fmt
+@dirrm include/libprelude
+@dirrm share/doc/libprelude
+@unexec rmdir /var/spool/prelude-sensors 2>/dev/null || echo "If you are permanently removing this port, you should do a ``rm -rf /var/spool/prelude-sensors`` to remove any files left." | fmt
+@exec /sbin/ldconfig -m 
+@unexec /sbin/ldconfig  -R