diff --git a/surok.py b/surok.py
index 545f193..31d1585 100755
--- a/surok.py
+++ b/surok.py
@@ -39,8 +39,8 @@ while 1:
         my = {'app': app_conf['name'], 'hosts': app_hosts}
         service_conf = gen(my, app_conf['template'])
 
-        reload_conf(service_conf, app_conf)
+        print(reload_conf(service_conf, app_conf))
 
 
-    sleep(5)
+    sleep(conf['wait_time'])
 
diff --git a/surok/system.py b/surok/system.py
index bba454e..686fca8 100644
--- a/surok/system.py
+++ b/surok/system.py
@@ -1,10 +1,44 @@
 import os
 
-def reload_conf(service_conf, app_conf):
-    f = open(app_conf['dest'], 'w')
+
+def get_old(name, service_conf):
+    
+    try:
+        path = '/var/tmp/surok.' + name
+        f = open(path, 'r')
+        old = f.read()
+        f.close()
+    except Exception as e:
+        print(str(e))
+        return 0
+
+    if old == service_conf:
+        return 1
+    else:
+        return 0
+    
+
+def write_lock(name, service_conf):
+    path = '/var/tmp/surok.' + name
+    f = open(path, 'w')
     f.write(service_conf)
     f.close()
 
-    # Reload conf
-    stdout = os.popopen(app_conf['reload_cmd']).read()
-    return stdout
+
+def reload_conf(service_conf, app_conf):
+    
+    # Check old config
+    if get_old(app_conf['name'], service_conf) != 1:
+        print('Write new configuration')
+
+        f = open(app_conf['dest'], 'w')
+        f.write(service_conf)
+        f.close()
+
+        write_lock(app_conf['name'], service_conf)
+
+        # Reload conf
+        stdout = os.popen(app_conf['reload_cmd']).read()
+        return stdout
+    else:
+        return 'Same config. Skip reload'