diff --git a/tools/s5.py b/tools/s5.py
new file mode 100644
index 0000000..5c04876
--- /dev/null
+++ b/tools/s5.py
@@ -0,0 +1,134 @@
+#!/usr/bin/python 
+
+# Filename s5.py 
+
+# Python Dynamic Socks5 Proxy 
+
+# Usage: python s5.py 1080 
+
+# Background Run: nohup python s5.py 1080 & 
+
+
+
+import socket, sys, select, SocketServer, struct, time 
+
+
+
+class ThreadingTCPServer(SocketServer.ThreadingMixIn, SocketServer.TCPServer): pass
+
+class Socks5Server(SocketServer.StreamRequestHandler): 
+
+  def handle_tcp(self, sock, remote): 
+
+    fdset = [sock, remote] 
+
+    while True: 
+
+      r, w, e = select.select(fdset, [], []) 
+
+      if sock in r: 
+
+        if remote.send(sock.recv(4096)) <= 0: break 
+
+      if remote in r: 
+
+        if sock.send(remote.recv(4096)) <= 0: break 
+
+  def handle(self): 
+
+    try: 
+
+      pass # print 'from ', self.client_address nothing to do. 
+
+      sock = self.connection 
+
+      # 1. Version 
+
+      sock.recv(262) 
+
+      sock.send("\x05\x00"); 
+
+      # 2. Request 
+
+      data = self.rfile.read(4) 
+
+      mode = ord(data[1]) 
+
+      addrtype = ord(data[3]) 
+
+      if addrtype == 1:    # IPv4 
+
+        addr = socket.inet_ntoa(self.rfile.read(4)) 
+
+      elif addrtype == 3:   # Domain name 
+
+        addr = self.rfile.read(ord(sock.recv(1)[0])) 
+
+      port = struct.unpack('>H', self.rfile.read(2)) 
+
+      reply = "\x05\x00\x00\x01" 
+
+      try: 
+
+        if mode == 1: # 1. Tcp connect 
+
+          remote = socket.socket(socket.AF_INET, socket.SOCK_STREAM) 
+
+          remote.connect((addr, port[0])) 
+
+          pass # print 'To', addr, port[0] nothing do to. 
+
+        else: 
+
+          reply = "\x05\x07\x00\x01" # Command not supported 
+
+        local = remote.getsockname() 
+
+        reply += socket.inet_aton(local[0]) + struct.pack(">H", local[1])
+
+      except socket.error: 
+
+        # Connection refused 
+
+        reply = '\x05\x05\x00\x01\x00\x00\x00\x00\x00\x00' 
+
+      sock.send(reply) 
+
+      # 3. Transfering 
+
+      if reply[1] == '\x00': # Success 
+
+        if mode == 1:  # 1. Tcp connect 
+
+          self.handle_tcp(sock, remote) 
+
+    except socket.error: 
+
+      pass #print 'error' nothing to do . 
+
+    except IndexError: 
+
+      pass 
+
+def main(): 
+
+  filename = sys.argv[0]; 
+
+  if len(sys.argv)<2: 
+
+    print 'usage: ' + filename + ' port' 
+
+    sys.exit() 
+
+  socks_port = int(sys.argv[1]);   
+
+  server = ThreadingTCPServer(('', socks_port), Socks5Server) 
+
+  print 'bind port: %d' % socks_port + ' ok!' 
+
+  server.serve_forever() 
+
+if __name__ == '__main__': 
+
+  main()
+