diff --git a/update_ldap.py b/update_ldap.py
new file mode 100644
index 00000000..5dca6a9a
--- /dev/null
+++ b/update_ldap.py
@@ -0,0 +1,31 @@
+### Appellé par cron, mets à jour la base de donnée ldap, par défaut le dialup access
+### Argument full, mets tout à jour
+
+import os, sys
+
+proj_path = "/var/www/re2o/"
+# This is so Django knows where to find stuff.
+os.environ.setdefault("DJANGO_SETTINGS_MODULE", "re2o.settings")
+sys.path.append(proj_path)
+
+# This is so my local_settings.py gets loaded.
+os.chdir(proj_path)
+
+# This is so models get loaded.
+from django.core.wsgi import get_wsgi_application
+application = get_wsgi_application()
+
+from users.models import User
+
+def refresh_ldap(base=False, access_refresh=True, mac_refresh=False):
+    for u in User.objects.all():
+        u.ldap_sync(base=base, access_refresh=access_refresh, mac_refresh=mac_refresh)
+    return
+
+if __name__ == '__main__':
+    if "base" in sys.argv:
+        refresh_ldap(base=True, access_refresh=True, mac_refresh=False)
+    elif "full" in sys.argv:
+        refresh_ldap(base=True, access_refresh=True, mac_refresh=True)
+    else:
+        refresh_ldap()