python socket bind机器上所有ip的方法

python socket bind 可以指定IP， 但如果socket.bind(("192.168.22.112",8099)), 这样的话，127.0.0.1:8099, 或者localhost:8099都无法访问，

bash-3.2# telnet 127.0.0.1 8099
Trying 127.0.0.1...
telnet: Unable to connect to remote host: Connection refused

bind 0.0.0.0就可以绑定这机器上的所有IP

s = socket.socket(socket.AF_INET,socket.SOCK_STREAM)
s.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
s.bind(("0.0.0.0",8099))
s.listen(5)

bash-3.2# telnet 127.0.0.1 8099
Trying 127.0.0.1...
Connected to 127.0.0.1.
Escape character is '^]'.
^P^Z