diff --git a/lib/route.sh b/lib/route.sh
index 6fe24f5..02fe88e 100755
--- a/lib/route.sh
+++ b/lib/route.sh
@@ -53,7 +53,8 @@ if [ "${devs_count}" -eq "0" ]; then
     ip route replace default via $gateway dev $dev
 
     ip route
-    return
+	exit 0
+    #return
 fi
 
 ip route replace 10.5.1.0/24 via $gateway # for LNS
diff --git a/lib/sudo.sh b/lib/sudo.sh
index 51b74ca..7093129 100755
--- a/lib/sudo.sh
+++ b/lib/sudo.sh
@@ -3,5 +3,5 @@
 if [ "$(id -u)" -eq "0" ]; then
     "$@"
 else
-    sudo -u root "$@"
+	sudo -u root "$@"
 fi
diff --git a/lib/user.sh b/lib/user.sh
index bfba0a5..48e44c3 100755
--- a/lib/user.sh
+++ b/lib/user.sh
@@ -35,7 +35,7 @@ edituser() {
     password=$2
     echo $password > "$users_enabled/${username}"
     echo "[INFO] Disconnect VPN"
-    "${BASEDIR}/sudo.sh" "${BASEDIR}/vpn.sh" disconnect
+    "${BASEDIR}/vpn.sh" disconnect
     echo "[INFO] Write to xl2tpd.conf"
     "${BASEDIR}/sudo.sh" "${BASEDIR}/xl2tpd.sh" adduser ${username} $password
     echo "[INFO] Restart xl2tpd"
diff --git a/lib/vpn.sh b/lib/vpn.sh
index 7a3c9a1..1f20295 100755
--- a/lib/vpn.sh
+++ b/lib/vpn.sh
@@ -25,19 +25,19 @@ BASEDIR=$(dirname $0)
 
 flush() {
     # see also: https://github.com/QSCTech/zjunet/issues/39
-    ip route flush 10.5.1.5
-    ip route flush 10.5.1.7
-    ip route flush 10.5.1.9
-    ip route flush 10.5.6.2
+    "${BASEDIR}/sudo.sh" ip route flush 10.5.1.5
+    "${BASEDIR}/sudo.sh" ip route flush 10.5.1.7
+    "${BASEDIR}/sudo.sh" ip route flush 10.5.1.9
+    "${BASEDIR}/sudo.sh" ip route flush 10.5.6.2
 }
 
 disconnect() {
     users=$("${BASEDIR}/user.sh" getall)
     for username in $users; do
         echo "[INFO] Logout: ${username}"
-        "${BASEDIR}/xl2tpd.sh" disconnect $username
+        "${BASEDIR}/sudo.sh" "${BASEDIR}/xl2tpd.sh" disconnect $username
     done
-    "${BASEDIR}/route.sh"
+    "${BASEDIR}/sudo.sh" "${BASEDIR}/route.sh"
 }
 
 connect() {
@@ -47,11 +47,13 @@ connect() {
     for username in $users; do
         password=$("${BASEDIR}/user.sh" getpwd $username)
         echo "[INFO] Login using ${username}"
-        "${BASEDIR}/xl2tpd.sh" connect $username $password
+        "${BASEDIR}/sudo.sh" "${BASEDIR}/xl2tpd.sh" connect $username $password
+		echo ------ flush
         flush
+		echo ------ febd
     done
 
-    "${BASEDIR}/route.sh"
+    "${BASEDIR}/sudo.sh" "${BASEDIR}/route.sh"
 }
 
 #####################################
diff --git a/lib/xl2tpd.sh b/lib/xl2tpd.sh
index cabf566..af67e14 100755
--- a/lib/xl2tpd.sh
+++ b/lib/xl2tpd.sh
@@ -18,6 +18,8 @@
 # You should have received a copy of the GNU General Public License
 # along with this program.  If not, see
 # <http://www.gnu.org/licenses/>.
+#
+# RUN AS ROOT! >..< ~~ / by xero ~~~ ararararar ~~~~
 
 LNS="10.5.1.9"
 L2TPD_CFG_FILE=/etc/xl2tpd/xl2tpd.conf
@@ -78,7 +80,7 @@ xl2tpd_restart() {
 }
 
 xl2tpd_create_lac() {
-    touch $PPP_LOG_FILE
+    #touch $PPP_LOG_FILE
 
     cat > $PPP_OPT_FILE <<EOF
 noauth
@@ -122,10 +124,11 @@ connect() {
     echo -n > $PPP_LOG_FILE
 
     prev_count=$(ip addr show | grep 'inet.*ppp' | grep ' 10.5.' | wc -l)
+	echo $LOG_FILE
 
     for i in $(seq 0 10000); do
 
-        tail $PPP_LOG_FILE
+        tail $PPP_LOG_FILE >> /home/xero/tmp/ttttt
         tail $PPP_LOG_FILE >> $LOG_FILE
         if [ $(tail $PPP_LOG_FILE | grep 'Connection terminated' | wc -l) -ne 0 ]
         then
diff --git a/lib/zjunet.sh b/lib/zjunet.sh
index d443722..516fec4 100755
--- a/lib/zjunet.sh
+++ b/lib/zjunet.sh
@@ -29,13 +29,13 @@ case "$1" in
         ;;
     all)
         "${BASEDIR}/wlan.sh" $2
-        "${BASEDIR}/sudo.sh" "${BASEDIR}/vpn.sh" $2
+        "${BASEDIR}/vpn.sh" $2
         ;;
     wlan)
         "${BASEDIR}/wlan.sh" $2
         ;;
     vpn)
-        "${BASEDIR}/sudo.sh" "${BASEDIR}/vpn.sh" $2
+        "${BASEDIR}/vpn.sh" $2
         ;;
     dns)
         "${BASEDIR}/dns.sh"