[tor-dev] how to simulate TOR network through chutney?

[Mohiuddin Ebna Kawsar]

Hi teor,

I forgot to mention that i added
########################
ExitPolicy accept 127.0.0.0/8:*
ExitPolicy accept [::1]:*
IPv6Exit 1
#########################
to torc of each authority  in net/nodes
before   ExitPolicy reject *:*

On Sun, Jan 11, 2015 at 12:29 PM, Mohiuddin Ebna Kawsar <
mohiuddin.kawsar at gmail.com> wrote:

> Hi teor,
>
> Thank's for your answer with good explanation. yes it worked for
> (Authority.getN(3) + Relay.getN(1) + Client.getN(1) ) . For this i have
> installed tor-0.2.6.2-alpha-dev and download newest chutney where exit-v4.i
> or exit-v6.i don't exist .
> now i can see thorough wire-shark that which server i'm queering.
> But i got "Couldn't launch test003c (tor --quiet -f
> chutney/net/nodes/003c/torrc): 255" when i use  (Authority.getN(3)  +
> Client.getN(1) ) as you mentioned.
> and is it also possible to find which authority is acting exit-node?
>
> Regards
> Kawsar
>
> On Sat, Jan 10, 2015 at 1:13 PM, teor <teor2345 at gmail.com> wrote:
>
>>
>> On 10 Jan 2015, at 09:55 , teor <teor2345 at gmail.com> wrote:
>>
>> >> Date: Tue, 6 Jan 2015 20:13:51 +0100
>> >> From: Mohiuddin Ebna Kawsar <mohiuddin.kawsar at gmail.com>
>> >> To: tor-dev at lists.torproject.org, matthias.wuebbeling at cs.uni-bonn.de
>> >> Subject: [tor-dev] how to simulate TOR network through chutney?
>> >>
>> >> HI,
>> >>
>> >> I  need to simulate TOR network in minimal case [1 ENTRY,1 RELAY,1
>> EXIT]
>> >> node.
>> >> how can i do that use chutney? how to setup exit node on  my localhost
>> and
>> >> how to make circuit with that exit node?
>> >>
>> >> following are my config file with generated (slightly modified) torc
>> files
>> >
>> > Hi Mohiuddin,
>> >
>> > -- Minimum number of instances in a Tor network --
>> >
>> > Using 3 tor instances (that is, 2 authorities/relays/exits and 1
>> client) will never work, because the minimum number of tor
>> relays/authorities/exits needed to create a path through the network is 3.
>> > Clients do not participate in any of the 3 positions in a path - they
>> only initiate the path.
>> >
>> > The basic-min network is already a minimal tor network containing:
>> > 3 authorities (which also act as non-exit relays)
>> > 1 exit
>> > 1 client
>> > -----
>> > 5 tor instances
>>
>> I forgot a simple, working config with 4 tor instances:
>>
>> 3 authorities / exits (authorities which also act as exit relays)
>> 1 client
>> -----
>> 4 tor instances
>>
>> To get this working, change authority.tmpl as follows:
>>
>> -----
>> ${include:relay-non-exit.tmpl}
>> # For IPv4 exit capabilities
>> ${include:exit-v4.i}
>> # For IPv6 exit capabilities
>> ${include:exit-v6.i}
>>
>> < the rest of authority.tmpl>
>> -----
>>
>> >
>> > You could possibly reduce this to:
>> > 1 authority (which also acts as a non-exit relay)
>> > 1 non-exit relay
>> > 1 exit
>> > 1 client
>> > -----
>> > 4 tor instances
>> >
>> > I wouldn't recommend using 4 instances for two reasons:
>> > 1. The minimum number of authorities for a stable consensus is 3:
>> > A) more than one authority is needed to produce a genuine consensus;
>> > B) an odd number of authorities is needed to break ties.
>> >
>> > 2. The minimum number of authorities (or relays with AssumeReachable
>> set) is 3, otherwise other relays or exits can't bootstrap. You can work
>> around this by setting/uncommenting "AssumeReachable 1" in
>> torrc_templates/common.i
>> > (It should be set to 1 by default.)
>> >
>> > I've never tested this, so I have no idea whether it will actually work.
>> > But feel free to try it, and let us know if it works (and please submit
>> a new torrc_template file).
>> >
>> > Note: if you're using hidden services, you may need more than 3
>> authorities/relays/exits in the network. (I have not tested the minimum for
>> hidden services.)
>> >
>> >
>> > -- What are you trying to simulate using chutney? --
>> >
>> > Do you need to test the entire bootstrap process? (30 seconds to start
>> up)
>> > Or do you just want the network to be ready quickly? (10 seconds to
>> start up)
>> >
>> > To get these bootstrap speeds, you will need to use tor version
>> 0.2.6.2-alpha or later, and the latest chutney from git. Otherwise, you
>> will be looking at 45 seconds or more to bootstrap.
>> >
>> > It will help if you indicate what you've modified in the torrc files,
>> and why.
>> >
>> >>
>> >> i use basic-min for configure.
>> >> ############## basic-min##########################
>> >> Authority = Node(tag="a", authority=1, relay=1, torrc="authority.tmpl")
>> >> Relay = Node(tag="r", relay=1, torrc="relay.tmpl")
>> >> Client = Node(tag="c", torrc="client.tmpl")
>> >>
>> >> NODES = Authority.getN(1) + Relay.getN(1) + Client.getN(1)
>> >>
>> >> ConfigureNodes(NODES)
>> >>
>> > <snip>
>> >
>> > teor
>>
>> teor
>>
>> teor2345 at gmail dot com
>> pgp 0xABFED1AC
>> https://gist.github.com/teor2345/d033b8ce0a99adbc89c5
>>
>> teor at blah dot im
>> OTR C3C57B23 349825DE 929A1DEF C3531C25 A32287ED
>>
>>
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>>
>
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