newbie has ftp question

[holland at voicenet.com]

When using ftplib.py on a linux box I am unable to establish a connection
with the host after establishing a connection with ppp dial-up.

The error I get is:
...
...
ftplib.py
line 117 in connect
self.sock.connect(self.host,self.port)
socket error: host not found

When I try the same code on a windows box it works fine.
Any help would be appreciated.

JIm