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Re: [hylafax-users] Problems running whfc via putty - tunnel




  
The thing now is, who is initiating the data connection? Is it whfc,
which has connected successfully and now wants the data, too? - This
should work.
  
If whfc is set to use passive, then the server tells the client which additional port connect to.  This port will have to be forwarded and I don't know what port range it will be in.  Normally with FTP its completely random, hylafax might be doing the same.  Just forwarding 20 and 21 won't work.

Someone on the list with more knowledge of the protocol might be able to answer; otherwise you'll have to tcpdump the network to see what ports are being used.

Now if the client you're using is exposed to the internet, then active FTP should work, as the server will connect back to your client computer on the specified port.  If your client computer can't accept incoming connections either, then you're back at passive trying to forward the proper ports.
-- 
Steven Kurylo



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