diff --git a/README.md b/README.md
index 317095a..991de7c 100644
--- a/README.md
+++ b/README.md
@@ -1,11 +1,32 @@
-minifirewall is shellscripts for easy firewalling on a standalone server
+Minifirewall is shellscripts for easy firewalling on a standalone server
 we used netfilter/iptables http://netfilter.org/ designed for recent Linux kernel
 See https://forge.evolix.org/projects/minifirewall
 
-Usage :
--------
+# Install
 
-* download minifirewall and minifirewall.conf
-* copy minifirewall.conf in /etc (for Debian, use /etc/default/minifirewall)
-  and configure it
-* start / stop with : minifirewall start / minifirewall stop
+Copy minifirewall script and config :
+
+~~~
+cp minifirewall /usr/local/sbin
+ln -s /usr/local/sbin/minifirewall /sbin
+cp minifirewall.conf /etc/default/minifirewall
+~~~
+
+## Systemd
+
+Copy systemd service in /etc/systemd/system :
+
+~~~
+cp minifirewall.service /etc/systemd/systemd/
+systemctl daemon-reload
+systemctl enable minifirewall
+~~~
+
+## Sysvinit
+
+Make a link to minifirewall script (SysVinit compatible) in /etc/init.d :
+
+~~~
+ln -s /usr/local/sbin/minifirewall /etc/init.d
+update-rc.d defaults minifirewall
+~~~
diff --git a/cron_minifirewall b/cron_minifirewall
index 88e3d9d..4603771 100755
--- a/cron_minifirewall
+++ b/cron_minifirewall
@@ -4,7 +4,7 @@
 # to refresh ips resolutions
 # Make sure this file is executable !
 
-FIREWALL=/etc/init.d/minifirewall
+FIREWALL=/sbin/minifirewall
 
 if [ -x "$FIREWALL" ] ; then
 	$FIREWALL restart >/dev/null
diff --git a/minifirewall b/minifirewall
index 94260a9..dbaa701 100755
--- a/minifirewall
+++ b/minifirewall
@@ -51,10 +51,15 @@ BROAD='255.255.255.255'
 PORTSROOT='0:1023'
 PORTSUSER='1024:65535'
 
+# Detect systemd unit
+[ -f /etc/system/system/minifirewall.service ] && SYSTEMD="true"
+[ -f /lib/systemd/system/minifirewall.service ] && SYSTEMD="true"
 
 case "$1" in
  start)
 
+[ -n "SYSTEMD" ] && [ -z "$SYSTEMCTL" ] && systemctl start minifirewall && exit 0
+
      echo "Start IPTables rules..."
 
 # Stop and warn if error!
@@ -313,6 +318,8 @@ trap - INT TERM EXIT
 
   stop)
 
+    [ -n "$SYSTEMD" ] && [ -z "$SYSTEMCTL" ] && systemctl stop minifirewall && exit 0
+
     echo "Flush all rules and accept everything..."
 
     # Delete all rules
diff --git a/minifirewall.service b/minifirewall.service
new file mode 100644
index 0000000..7a22bd4
--- /dev/null
+++ b/minifirewall.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Easy firewalling on a standalone server
+
+[Service]
+Type=oneshot
+Environment="SYSTEMCTL=yes"
+ExecStart=/sbin/minifirewall start
+ExecStop=/sbin/minifirewall stop
+RemainAfterExit=yes
+
+[Install]
+WantedBy=multi-user.target