连接到redis服务器在聊天信使中的错误

Question

我已经开发了Python的聊天系统。库已被使用：easygui，pycrypto，netifaces，stepic，redis，rabbitmq，pika，PIL和setuptools。 所有的库似乎安装很好参考：python>导入库 通过在本地主机上使用redis-server，用户可以连接到redis和注册，登录，聊天......但在不同设备上设置redis并将localhost更改为redis服务器ip在代码中，我收到以下错误。从系统（正在使用lubuntu在Oracle虚拟机的最后一个版本）

enter code here 
Traceback (most recent call last): 
File "kiducb.py", line 392, in <module> 
g = Gui() 
File "kiducb.py", line 19, in __init__ 
self.welcome() 
File "kiducb.py", line 33, in welcome 
rl = self.login() 
File "kiducb.py", line 126, in login 
resp = self.check_up(fvals[0], fvals[1], mac) 
File "kiducb.py", line 76, in check_up 
val = self.re.get(username) 
File "/usr/lib/python2.7/dist-packages/redis/client.py", line 423, in get 
return self.execute_command('GET', name) 
File "/usr/lib/python2.7/dist-packages/redis/client.py", line 283, in execute_command 
connection.send_command(*args) 
File "/usr/lib/python2.7/dist-packages/redis/connection.py", line 260, in send_command 
self.send_packed_command(self.pack_command(*args)) 
File "/usr/lib/python2.7/dist-packages/redis/connection.py", line 243, in 
send_packed_command   
self.connect() 
File "/usr/lib/python2.7/dist-packages/redis/connection.py", line 191, in connect 
raise ConnectionError(self._error_message(e)) 
redis.exceptions.ConnectionError: Error 111 connecting 10.1.1.12:6379. Connection refused.