FTP with Tor

Ben Clifford rhodopsin at hotmail.com
Fri Jul 22 23:28:41 UTC 2005


Thanks tildeone for all your help. Am currently exploring the tor_resolve 
stuff you kindly put down. Would be so grateful if anyone can comment 
further on these topics:

1) "the fact that an application speaks socks 4a doesn't mean the dns 
leakage problem is not present." Oh. Can you perhaps explain the 
significance of socks4a for me? Why is it so important to Tor if it is not 
related to this DNS issue? Isn't the importance of Privoxy something to do 
with it enabling Tor to be used as a Socks4a proxy as opposed to a Socks4 or 
Socks5 proxy?

2) Is this valid?:  if I input an IP address to the FTP client, instead of a 
domain name, then there will be no DNS issue cause it will of course not 
have to look up the corresponding IP address to the domain name - it already 
has the IP address!

3) With FTP - is it best to use Tor as a 1) Socks4a proxy 2) Socks4 proxy or 
3) Socks 5 proxy?

Thanks in advance. hope you guys all have a nice weekend.


>From: tilde0ne <admin at tilde-one.dyndns.org>
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>To: or-talk at freehaven.net
>Subject: Re: FTP with Tor
>Date: Sat, 23 Jul 2005 00:33:42 +0200
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>On 23.07.2005 00:09, Ben Clifford wrote:
> > Hi,
> >
> > 1) "the fact that an application speaks socks 4a doesn't mean the dns
> > leakage problem is not present."
> >
> > Oh. Can you perhaps explain the significance of socks4a for me? Why is 
>it so
> > important to Tor if it is not related to this DNS issue? Isn't the
> > importance of Privoxy something to do with it enabling Tor to be used as 
>a
> > Socks4a proxy as opposed to a Socks4 or Socks5 proxy?
> >
>Sorry, I can't (I'm really not that network guru at all, just starting
>to learn)
>
> > 2) So, I think what you are saying is that if I input an IP address to 
>the
> > FTP client, instead of a domain name, then there will be no DNS issue 
>cause
> > it will of course not have to look up the corresponding IP address to 
>the
> > domain name - it already has the IP address! A good idea for sure. Now, 
>how
> > to get the IP address for a given ftp domain name? Could use 
>Tor-resolve:
> >
> > "a program that you run to resolve one single domain name to one sinlge 
>IP
> > address
> > using the tor network."
> >
> > How do I run Tor-resolve? Still don't really know how to use the 
>Tor-resolve
> > functionality.
> >
>usage (in DOS promt, if you are on windows):
>
>tor_resolve [-v] hostname [sockshost:socksproxy]
>
>arguments in [] are optional, -v means verbose output, without defining
>sockshost:socksport tor_resovle defaults to localhost:9050.
>
> > 3) With FTP - is it best to use Tor as a 1) Socks4a proxy 2) Socks4 
>proxy or
> > 3) Socks 5 proxy?
>
>I think it should be socks 4a (but again, I don't really know the
>significance - guess there are people knowing much better on the list).
>
>Hope that helps
>
>- --
>tilde0ne
>
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