Re: [tor-talk] two tors?

[James Brown <jbrownfirst@xxxxxxxxx>]

On 06.04.2012 20:31, Roger Dingledine wrote:
> On Fri, Apr 06, 2012 at 04:01:59PM -0000, BigTor wrote:
>>> I have two internet apps that I want to run the same time, both using tor
>>> socks proxy. I do not want the data streams of the apps routing thorugh
>>> the same circuit. Is it safe two run two tor processes, with different
>>> proxy ports?
>>
>> If you configure and use it right, I think it's safe. Remember to change
>> the SocksPort option in torrc and to let tor use different pidfiles.
> 
> Actually, you can do it with a single Tor and multiple SocksPort lines,
> if you're using Tor 0.2.3.x. See this piece of 0.2.3.3-alpha's changelog:
> 
>   o Major features (stream isolation):
>     - You can now configure Tor so that streams from different
>       applications are isolated on different circuits, to prevent an
>       attacker who sees your streams as they leave an exit node from
>       linking your sessions to one another. To do this, choose some way
>       to distinguish the applications: have them connect to different
>       SocksPorts, or have one of them use SOCKS4 while the other uses
>       SOCKS5, or have them pass different authentication strings to the
>       SOCKS proxy. Then, use the new SocksPort syntax to configure the
>       degree of isolation you need. This implements Proposal 171.
>     - There's a new syntax for specifying multiple client ports (such as
>       SOCKSPort, TransPort, DNSPort, NATDPort): you can now just declare
>       multiple *Port entries with full addr:port syntax on each.
>       The old *ListenAddress format is still supported, but you can't
>       mix it with the new *Port syntax.
> 
> You can read more details in the SOCKSPort entry of the 0.2.3 Tor manual.
> 
> The advantage to using one Tor with multiple SocksPort lines is that
> you don't load down the Tor network with duplicate directory fetches.
> 
> --Roger
> 

Can you provide the examle of such torrc-configuration?
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