Hi, I'm still trying to get my SFTP server up. After looking over SFTPGateway in some detail, I think I have an idea of where all the pieces fit, but I'm still having the problem I had before with the sshsimpleserver example. Even though my factory is being instantiated and the log output says it's starting on the port I specified, the port is not, in fact, open to any connections. Because there is no error reported, I'm having a hard time debugging this. I know that my factory's __init__ method completes successfully, and startFactory is also called. After that... nothing. Can anyone help me figure out where to start looking, at least? Thanks, Jason Here's my Factory class, minus a few comments and debug print statements: class Factory(factory.SSHFactory): def __init__(self): self.portal = portal.Portal(Realm()) def makeConnection(*args, **kw): return Connection(*args, **kw) self.services = { 'ssh-userauth': userauth.SSHUserAuthServer, 'ssh-connection': makeConnection, } # TODO: replace this with keys loaded from a file self.__private_keys = { 'ssh-rsa': keys.getPublicKeyString(data=publicKey) } self.__public_keys = { 'ssh-rsa': keys.getPrivateKeyObject(data=privateKey) } def buildProtocol(self, address): # Note: this function does not use its address parameter. I don't know # why it's there. return factory.SSHFactory.buildProtocol(self, address) def getPrivateKeys(self): return self.__private_keys.copy() def getPublicKeys(self): return self.__public_keys.copy()