diff --git a/Shorewall-init/install.sh b/Shorewall-init/install.sh
index bb6c04336..80cf72d0d 100755
--- a/Shorewall-init/install.sh
+++ b/Shorewall-init/install.sh
@@ -35,6 +35,7 @@ usage() # $1 = exit status
     echo "usage: $ME [ <configuration-file> ]"
     echo "       $ME -v"
     echo "       $ME -h"
+    echo "       $ME -n"
     exit $1
 }
 
@@ -105,6 +106,7 @@ PRODUCT=shorewall-init
 T='-T'
 
 finished=0
+configure=1
 
 while [ $finished -eq 0 ] ; do
     case "$1" in
@@ -120,6 +122,10 @@ while [ $finished -eq 0 ] ; do
 			echo "Shorewall-init Firewall Installer Version $VERSION"
 			exit 0
 			;;
+		    n*)
+			configure=0
+			option=${option#n}
+			;;
 		    *)
 			usage 1
 			;;
@@ -453,7 +459,7 @@ case $HOST in
 esac
 
 if [ -z "$DESTDIR" ]; then
-    if [ -n "$first_install" ]; then
+    if [ $configure -eq 1 -a -n "$first_install" ]; then
 	if [ $HOST = debian ]; then
 	    if mywhich insserv; then
 		if insserv ${INITDIR}/shorewall-init; then
@@ -505,7 +511,7 @@ if [ -z "$DESTDIR" ]; then
 	fi
     fi
 else
-    if [ -n "$first_install" ]; then
+    if [ $configure -eq 1 -a -n "$first_install" ]; then
 	if [ $HOST = debian ]; then
 	    if [ -n "${DESTDIR}" ]; then
 		mkdir -p ${DESTDIR}/etc/rcS.d
diff --git a/Shorewall-lite/install.sh b/Shorewall-lite/install.sh
index 7c2aea6db..dac77c6c8 100755
--- a/Shorewall-lite/install.sh
+++ b/Shorewall-lite/install.sh
@@ -30,6 +30,7 @@ usage() # $1 = exit status
     echo "usage: $ME [ <configuration-file> ]"
     echo "       $ME -v"
     echo "       $ME -h"
+    echo "       $ME -n"
     exit $1
 }
 
@@ -113,6 +114,7 @@ fi
 # Parse the run line
 #
 finished=0
+configure=1
 
 while [ $finished -eq 0 ] ; do
     case "$1" in
@@ -128,6 +130,10 @@ while [ $finished -eq 0 ] ; do
 			echo "$Product Firewall Installer Version $VERSION"
 			exit 0
 			;;
+		    n*)
+			configure=0
+			option=${option#n}
+			;;
 		    *)
 			usage 1
 			;;
@@ -527,7 +533,7 @@ if [ ${SHAREDIR} != /usr/share ]; then
     eval sed -i \'s\|/usr/share/\|${SHAREDIR}/\|\' ${DESTDIR}/${SBINDIR}/$PRODUCT
 fi
 
-if [ -z "$DESTDIR" -a -n "$first_install" -a -z "${cygwin}${mac}" ]; then
+if [ $configure -eq 1 -a -z "$DESTDIR" -a -n "$first_install" -a -z "${cygwin}${mac}" ]; then
     if [ -n "$SYSTEMD" ]; then
 	if systemctl enable ${PRODUCT}.service; then
 	    echo "$Product will start automatically at boot"
diff --git a/Shorewall/install.sh b/Shorewall/install.sh
index 3cf3dd310..02745ff5e 100755
--- a/Shorewall/install.sh
+++ b/Shorewall/install.sh
@@ -35,6 +35,7 @@ usage() # $1 = exit status
     echo "       $ME -h"
     echo "       $ME -s"
     echo "       $ME -a"
+    echo "       $ME -n"
     exit $1
 }
 
@@ -118,6 +119,7 @@ T="-T"
 INSTALLD='-D'
 
 finished=0
+configure=1
 
 while [ $finished -eq 0 ]; do
     option=$1
@@ -147,6 +149,10 @@ while [ $finished -eq 0 ]; do
 			ANNOTATED=
 			option=${option#p}
 			;;
+		    n*)
+			configure=0
+			option=${option#n}
+			;;
 		    *)
 			usage 1
 			;;
@@ -1167,7 +1173,7 @@ if [ -n "$SYSCONFFILE" -a -f "$SYSCONFFILE" -a ! -f ${DESTDIR}${SYSCONFDIR}/${PR
     echo "$SYSCONFFILE installed in ${DESTDIR}${SYSCONFDIR}/${PRODUCT}"
 fi
 
-if [ -z "$DESTDIR" -a -n "$first_install" -a -z "${cygwin}${mac}" ]; then
+if [ $configure -eq 1 -a -z "$DESTDIR" -a -n "$first_install" -a -z "${cygwin}${mac}" ]; then
     if [ -n "$SYSTEMD" ]; then
 	if systemctl enable ${PRODUCT}.service; then
 	    echo "$Product will start automatically at boot"