diff --git a/shadowsocks_watchdog.sh b/shadowsocks_watchdog.sh
index d5dde6c..cef3955 100755
--- a/shadowsocks_watchdog.sh
+++ b/shadowsocks_watchdog.sh
@@ -1,18 +1,23 @@
 #!/bin/sh
 
-# version: 0.0.1
+# version: 0.0.2
 
 LOGTIME=$(date "+%Y-%m-%d %H:%M:%S")
+LOGFILE=/var/log/ss_watchdog.log
+if [ `date +%w%H%M` == 70100 ];then
+	echo -n "" > $LOGFILE
+fi
+sleep `awk 'BEGIN{srand();print int(rand()*10)}'`
 wget --spider --quiet --tries=1 --timeout=10 https://www.google.com/
 if [ "$?" == "0" ]; then
-	echo '['$LOGTIME'] No Problem.'
+	echo '['$LOGTIME'] No Problem.' >> $LOGFILE
 	exit 0
 else
 	wget --spider --quiet --tries=1 --timeout=10 https://www.baidu.com/
 	if [ "$?" == "0" ]; then
-		echo '['$LOGTIME'] Problem decteted, restarting shadowsocks.'
+		echo '['$LOGTIME'] Problem decteted, restarting shadowsocks.' >> $LOGFILE
 		/etc/init.d/shadowsocks restart
 	else
-		echo '['$LOGTIME'] Network Problem. Do nothing.'
+		echo '['$LOGTIME'] Network Problem. Do nothing.' >> $LOGFILE
 	fi
 fi