当OSX Finder"连接到服务器…"成功时,是什么导致pysmb失败



(最初是在StackOverflow上询问的,但我认为这里有更合适的专家):

我正试图用python脚本(在OSX 10.10上运行)从远程samba共享(在windows服务器上)传输文件。我可以使用Finder的Go->"连接到服务器…"对话框装载共享,但当我试图在python(v 2.7.6)中的pysmb模块中使用相同的凭据时,我会得到"拒绝连接"。:

>>> from smb.SMBConnection import SMBConnection
>>> conn =SMBConnection('myuser', 'mypassword','me','remote-server-netbios-name')
>>> assert conn.connect('remoteserver.mycompany.com')
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Python/2.7/site-packages/smb/SMBConnection.py", line 103, in connect
self.sock.connect(( ip, port ))
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/socket.py", line 224, in meth
return getattr(self._sock,name)(*args)
socket.error: [Errno 61] Connection refused

类似地,如果我试图使用NetBIOS包来获取远程服务器的名称(以确认我得到了正确的名称),它就会超时:

>>> from nmb.NetBIOS import NetBIOS
>>> 
>>> def getBIOSName(remote_smb_ip, timeout=30):
...     try:
...         bios = NetBIOS()
...         srv_name = bios.queryIPForName(remote_smb_ip, timeout=timeout)
...     except:
...         print >> sys.stderr, "Looking up timeout, check remote_smb_ip again!!"
...     finally:
...         bios.close()
...         return srv_name
... 
>>> getBIOSName('remoteserver.mycompany.com')

同样的代码可以很好地从我家ubuntu服务器上的samba共享中获取文件。我怀疑这可能是服务器本身的某些权限或防火墙问题。关于需要打开哪些端口/权限才能实现这一点,有什么想法吗?

编辑:根据下面boardrider的建议,我通过指定端口445来尝试连接功能。然而,这会产生"对等连接重置"错误:

>>> assert conn.connect('remoteserver.mycompany.com', 445)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/Library/Python/2.7/site-packages/smb/SMBConnection.py", line 112, in connect
self._pollForNetBIOSPacket(timeout)
File "/Library/Python/2.7/site-packages/smb/SMBConnection.py", line 511, in _pollForNetBIOSPacket
d = self.sock.recv(read_len)
socket.error: [Errno 54] Connection reset by peer

这对我很有效:1.用户名没有域部分2.is_direct_tcp=真3.连接到端口445

conn = SMBConnection('user', 'password', socket.gethostname(), 'remote_server_name', 'domain_name', is_direct_tcp=True)
assert conn.connect('server_ip', 445)

SMB.SMBConnection INFO身份验证(在SMB2上)成功!

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