diff --git a/README.md b/README.md
index 82917cc..1172651 100644
--- a/README.md
+++ b/README.md
@@ -12,7 +12,7 @@
 
 `Watchdog🐶已经加入，触发式告警。 interval只是为了防止频繁收到报警信息造成骚扰，并不是探测间隔。`    
 
-# 目录介绍：
+# 目录：
 
 * clients       	客户端文件
 * server       	 	服务端文件  
@@ -21,7 +21,7 @@
 * server/config.json	探针配置文件                                
 * web/json      	探针月流量        
 
-# 自动部署：
+# 部署：
 
 【服务端】：
 ```bash
@@ -42,6 +42,11 @@ eg:
 wget --no-check-certificate -qO client-linux.py 'https://raw.githubusercontent.com/cppla/ServerStatus/master/clients/client-linux.py' && nohup python3 client-linux.py SERVER=45.79.67.132 USER=s04  >/dev/null 2>&1 &
 ```
 
+# 主题：            
+
+* layui：https://github.com/zeyudada/StatusServerLayui        
+<img src=https://dl.cpp.la/Archive/serverstatus_layui.png width=200 height=100 /> 
+
 # 手动安装教程：     
    
 **【服务端配置】**           
diff --git a/clients/client-linux.py b/clients/client-linux.py
index cfac848..00e59d5 100755
--- a/clients/client-linux.py
+++ b/clients/client-linux.py
@@ -155,17 +155,18 @@ def _ping_thread(host, mark, port):
     lostPacket = 0
     packet_queue = Queue(maxsize=PING_PACKET_HISTORY_LEN)
 
-    IP = host
-    if host.count(':') < 1:     # if not plain ipv6 address, means ipv4 address or hostname
-        try:
-            if PROBE_PROTOCOL_PREFER == 'ipv4':
-                IP = socket.getaddrinfo(host, None, socket.AF_INET)[0][4][0]
-            else:
-                IP = socket.getaddrinfo(host, None, socket.AF_INET6)[0][4][0]
-        except Exception:
+    while True:
+        # flush dns , every time.
+        IP = host
+        if host.count(':') < 1:  # if not plain ipv6 address, means ipv4 address or hostname
+            try:
+                if PROBE_PROTOCOL_PREFER == 'ipv4':
+                    IP = socket.getaddrinfo(host, None, socket.AF_INET)[0][4][0]
+                else:
+                    IP = socket.getaddrinfo(host, None, socket.AF_INET6)[0][4][0]
+            except Exception:
                 pass
 
-    while True:
         if packet_queue.full():
             if packet_queue.get() == 0:
                 lostPacket -= 1
diff --git a/clients/client-psutil.py b/clients/client-psutil.py
index 19403cd..ceac788 100755
--- a/clients/client-psutil.py
+++ b/clients/client-psutil.py
@@ -153,17 +153,18 @@ def _ping_thread(host, mark, port):
     lostPacket = 0
     packet_queue = Queue(maxsize=PING_PACKET_HISTORY_LEN)
 
-    IP = host
-    if host.count(':') < 1:     # if not plain ipv6 address, means ipv4 address or hostname
-        try:
-            if PROBE_PROTOCOL_PREFER == 'ipv4':
-                IP = socket.getaddrinfo(host, None, socket.AF_INET)[0][4][0]
-            else:
-                IP = socket.getaddrinfo(host, None, socket.AF_INET6)[0][4][0]
-        except Exception:
+    while True:
+        # flush dns, every time.
+        IP = host
+        if host.count(':') < 1:  # if not plain ipv6 address, means ipv4 address or hostname
+            try:
+                if PROBE_PROTOCOL_PREFER == 'ipv4':
+                    IP = socket.getaddrinfo(host, None, socket.AF_INET)[0][4][0]
+                else:
+                    IP = socket.getaddrinfo(host, None, socket.AF_INET6)[0][4][0]
+            except Exception:
                 pass
 
-    while True:
         if packet_queue.full():
             if packet_queue.get() == 0:
                 lostPacket -= 1