diff --git a/debian9-x86_64.sh b/debian9-x86_64.sh
old mode 100644
new mode 100755
index 30cb01c..bc28a86
--- a/debian9-x86_64.sh
+++ b/debian9-x86_64.sh
@@ -610,14 +610,14 @@ if [ "$V2RAY" = "yes" ]; then
 	#apt-get -y -o Dpkg::Options::="--force-overwrite" install v2ray
 	if [ "$SOURCES" = "yes" ]; then
 		wget -O /tmp/v2ray-${V2RAY_VERSION}-amd64.deb ${VPSURL}/debian/v2ray-${V2RAY_VERSION}-amd64.deb
+		dpkg --force-all -i -B /tmp/v2ray-${V2RAY_VERSION}-amd64.deb
+		rm -f /tmp/v2ray-${V2RAY_VERSION}-amd64.deb
 	else
 		apt-get -y install v2ray=${V2RAY_VERSION}
 	fi
 	if [ -f /etc/v2ray/v2ray-server.conf ] && [ ! -f /etc/systemd/system/v2ray.service ]; then
 		wget -O /etc/systemd/system/v2ray.service ${VPSURL}${VPSPATH}/old-v2ray.service
 	fi
-	dpkg --force-all -i -B /tmp/v2ray-${V2RAY_VERSION}-amd64.deb
-	rm -f /tmp/v2ray-${V2RAY_VERSION}-amd64.deb
 	if [ ! -f /etc/v2ray/v2ray-server.json ]; then
 		wget -O /etc/v2ray/v2ray-server.json ${VPSURL}${VPSPATH}/v2ray-server.json
 		sed -i "s:V2RAY_UUID:$V2RAY_UUID:g" /etc/v2ray/v2ray-server.json
diff --git a/old-v2ray.service b/old-v2ray.service
new file mode 100644
index 0000000..9ed715a
--- /dev/null
+++ b/old-v2ray.service
@@ -0,0 +1,25 @@
+[Unit]
+Description=V2Ray - A unified platform for anti-censorship
+Documentation=https://v2ray.com https://guide.v2fly.org
+After=network.target nss-lookup.target
+Wants=network-online.target
+
+[Service]
+# If the version of systemd is 240 or above, then uncommenting Type=exec and commenting out Type=simple
+#Type=exec
+Type=simple
+# Runs as root or add CAP_NET_BIND_SERVICE ability can bind 1 to 1024 port.
+# This service runs as root. You may consider to run it as another user for security concerns.
+# By uncommenting User=v2ray and commenting out User=root, the service will run as user v2ray.
+# More discussion at https://github.com/v2ray/v2ray-core/issues/1011
+User=root
+#User=v2ray
+CapabilityBoundingSet=CAP_NET_BIND_SERVICE CAP_NET_RAW
+NoNewPrivileges=yes
+ExecStart=/usr/bin/v2ray -config /etc/v2ray/config.json
+Restart=on-failure
+# Don't restart in the case of configuration error
+RestartPreventExitStatus=23
+
+[Install]
+WantedBy=multi-user.target