diff --git a/debian/static/DEBIAN/control b/debian/static/DEBIAN/control
index 1aa6b46..0cfed3b 100644
--- a/debian/static/DEBIAN/control
+++ b/debian/static/DEBIAN/control
@@ -3,6 +3,6 @@ Version: %VERSION%
 Section: net
 Priority: optional
 Architecture: %ARCHITECTURE%
-Depends: bash, daemon, iproute (>= 20100519-3) | iproute2 (>= 20100519-3) | openvpn, passwd, coreutils
+Depends: bash, daemon, iproute (>= 20100519-1) | iproute2, adduser
 Maintainer: Ivo Smits <ivo@ucis.nl>
 Description: Very simple, yet secure VPN software
diff --git a/debian/static/DEBIAN/postinst b/debian/static/DEBIAN/postinst
index 6dc8b25..bd6f9ba 100755
--- a/debian/static/DEBIAN/postinst
+++ b/debian/static/DEBIAN/postinst
@@ -1,6 +1,29 @@
 #!/bin/sh
-if [ "$1" = "configure" ]; then
-	if ! getent passwd quicktun >/dev/null; then
-		/usr/sbin/useradd -d /nonexistent -N -r -s /bin/false -g nogroup quicktun
-	fi
-fi
+
+set -e
+
+case "$1" in
+	configure|reconfigure)
+		adduser --system \
+			--quiet \
+			--group \
+			--home /nonexistent \
+			--no-create-home \
+			--gecos "QuickTun VPN daemon" \
+			quicktun
+		# Upgrade path: if the user quicktun already existed, "adduser" will not
+		# create the group, so we handle this here.
+		if ! getent group quicktun > /dev/null; then
+			echo "Creating system group \`quicktun' and putting quicktun user into it" 1>&2
+			addgroup --quiet --system quicktun
+			usermod -g quicktun quicktun
+		fi
+		;;
+	abort-upgrade|abort-remove|abort-deconfigure)
+		exit 0
+		;;
+	*)
+		echo "postinst called with unknown argument \`$1'" >&2
+		exit 1
+		;;
+esac
diff --git a/debian/static/DEBIAN/postrm b/debian/static/DEBIAN/postrm
new file mode 100755
index 0000000..3dd2bd8
--- /dev/null
+++ b/debian/static/DEBIAN/postrm
@@ -0,0 +1,19 @@
+#!/bin/sh
+
+set -e
+
+case "$1" in
+	purge)
+		if [ -x "$(command -v deluser)" ]; then
+			deluser --quiet --system quicktun > /dev/null || true
+			deluser --group --system --quiet --only-if-empty quicktun || true
+		else
+			echo "not removing quicktun system account and group because deluser command was not found" >&2
+		fi
+		;;
+	remove|upgrade|failed-upgrade|abort-install|abort-upgrade|disappear)
+		;;
+	*)
+		echo "postrm called with unknown argument \`$1'" >&2
+		exit 1
+esac
diff --git a/debian/static/DEBIAN/prerm b/debian/static/DEBIAN/prerm
deleted file mode 100755
index 8fdb1ec..0000000
--- a/debian/static/DEBIAN/prerm
+++ /dev/null
@@ -1,4 +0,0 @@
-#!/bin/sh
-if [ "$1" = "remove" ]; then
-	/usr/sbin/userdel quicktun
-fi
diff --git a/debian/static/etc/network/if-post-down.d/quicktun b/debian/static/etc/network/if-post-down.d/quicktun
index 2dcbcc4..4abd880 100755
--- a/debian/static/etc/network/if-post-down.d/quicktun
+++ b/debian/static/etc/network/if-post-down.d/quicktun
@@ -1,15 +1,11 @@
 #!/bin/sh
 test -n "${IF_QT_REMOTE_ADDRESS}" || exit 0
 test -z "${IF_QT_NO_PRECREATE}" || exit 0
-if [ -x /usr/sbin/openvpn ]; then
-	/usr/sbin/openvpn --rmtun --dev "${IFACE}"
-elif [ -x /sbin/ip ] && /sbin/ip tuntap 2>&1 >/dev/null; then
+if [ -x /sbin/ip ] && /sbin/ip tuntap 2>&1 >/dev/null; then
 	if [ -n "${IF_QT_TUN_MODE}" ] && [ "${IF_QT_TUN_MODE}" = "1" ]; then
 	        DEVTYPE="tun"
 	else
 	        DEVTYPE="tap"
 	fi
 	/sbin/ip tuntap del dev "${IFACE}" mode "${DEVTYPE}"
-elif [ -x /usr/sbin/tunctl ]; then
-	/usr/sbin/tunctl -d "${IFACE}"
 fi
diff --git a/debian/static/etc/network/if-pre-up.d/quicktun b/debian/static/etc/network/if-pre-up.d/quicktun
index eafd01f..aa2b9ef 100755
--- a/debian/static/etc/network/if-pre-up.d/quicktun
+++ b/debian/static/etc/network/if-pre-up.d/quicktun
@@ -6,12 +6,8 @@ if [ -n "${IF_QT_TUN_MODE}" ] && [ "${IF_QT_TUN_MODE}" = "1" ]; then
 else
 	DEVTYPE="tap"
 fi
-if [ -x /usr/sbin/openvpn ]; then
-	/usr/sbin/openvpn --mktun --dev "${IFACE}" --dev-type "${DEVTYPE}" --user quicktun
-elif [ -x /sbin/ip ] && /sbin/ip tuntap 2>&1 >/dev/null; then
+if [ -x /sbin/ip ] && /sbin/ip tuntap 2>&1 >/dev/null; then
 	/sbin/ip tuntap add dev "${IFACE}" mode "${DEVTYPE}" user quicktun
-elif [ -x /usr/sbin/tunctl ]; then
-	/usr/sbin/tunctl -u quicktun -t "${IFACE}"
 else
-	echo "Unable to pre-create tun/tap interface. Run QuickTun as root by setting QT_NO_PRECREATE."
+	echo "Unable to pre-create tun/tap interface. Install iproute2 or run QuickTun as root by setting QT_NO_PRECREATE."
 fi
diff --git a/debian/static/etc/network/if-up.d/quicktun b/debian/static/etc/network/if-up.d/quicktun
index 71069e4..26fa693 100755
--- a/debian/static/etc/network/if-up.d/quicktun
+++ b/debian/static/etc/network/if-up.d/quicktun
@@ -5,4 +5,6 @@ if [ -z "${IF_QT_NO_PRECREATE}" ]; then
 else
 	RUNUSER="root"
 fi
-/usr/bin/daemon -n "quicktun.${IFACE}" -u "${RUNUSER}" -i -l daemon.err -b daemon.debug -o daemon.debug /usr/sbin/quicktun.debian
+/usr/bin/daemon -n "quicktun.${IFACE}" -u "${RUNUSER}" -i \
+		-l daemon.err -b daemon.debug -o daemon.debug \
+		/usr/sbin/quicktun.debian