diff --git a/server.md b/server.md
index ae409a4..66aa50c 100644
--- a/server.md
+++ b/server.md
@@ -1,10 +1,31 @@
-only reboot if vpn isn't used
+# only reboot if vpn isn't used
+
 ```bash
 if [ $(ifstat -i tun0 1s 1 | awk 'NR==3 {print $1}' | sed 's#\..*##') -eq 0 ]; then systemctl reboot; fi
 ```
 
-fix routing
+# fix routing
+
 > replace `<localip>` by the IP
+
+## `routing.sh`
+
+```bash
+#!/bin/bash
+
+# supression d'une ancienne route
+ip route del <localip> 2> /dev/null
+# ajoute de la nouvelle route avec la bonne IP
+ip route add <localip> via $(ip -4 -br addr show tun0 | awk '{split($3,a,"/"); print a[1]}') dev tun0
+
+echo "Done :)"
+
+# vérification
+# ip route
+```
+
+## run the script
+
 ```bash
 if [ $(ip route | grep <localip> | wc -l) -ne 1 ]; then /root/openvpn/routing.sh; fi
-```
+```
\ No newline at end of file