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Re: [tor-dev] tor-dev Digest, Vol 97, Issue 19



Attn: Iain Learmonth <irl@xxxxxxxxxxxxxx>

Thank you for your thoughtful response.  Perhaps this was the wrong mailing list in some ways.

Backing up on Iain's email conversation, I have always built my desktop computers from scratch.  Salvaged hardware and researched drivers, etc.  There is nothing pre-installed.  (My colleagues affectionately call me the Queen of Setup and Config.")  By design.  I have an OEM version of XP that I put on initially, but that is only the start.  Since xp is not locked down like Windows 7 and beyond, I then reconfigure so much!  You would be right in assuming that a standard xp install is a security risk.  But I am constantly tracing packets, studying the traffic at the back end to see where the leaks are.  Then I figure out what I can do to plug / understand the leaks.  Partly therefore, xp is a learning / testing tool.  

I use xp for basic apps.  But I would sooner drink lye than use Windows 7 and beyond.  Therefore, as you already suggested, I did have a dual boot with a Parrot distribution.  That is, until my sata drive died.  Upon purchase, I will return to the dual boot or to two machines.  So therefore, I am back to xp for the time being.  Until such time as I have the dual/two machine option again, I surely would like to be able to update as much of Tor as I can.  (I know that you are serving the masses and not an individual person).

Anyhow, I love Tor and I love having kindred spirits that 'get' security.  Thank you for what you are doing.

~Emily

On Tue, Feb 19, 2019, at 12:00 PM, tor-dev-request@xxxxxxxxxxxxxxxxxxxx wrote:
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> Today's Topics:
> 
>    1. Re: xp + T (Iain Learmonth)
>    2. Sending multiple streams throuh a single Tor circuit
>       (Piyush Kumar Sharma)
>    3. Re: Sending multiple streams throuh a single Tor circuit (meejah)
> 
> 
> ----------------------------------------------------------------------
> 
> Message: 1
> Date: Mon, 18 Feb 2019 14:32:11 +0000
> From: Iain Learmonth <irl@xxxxxxxxxxxxxx>
> To: tor-dev@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [tor-dev] xp + T
> Message-ID: <4b405fbe-6130-ef98-1a8d-74bcacc8bc5f@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="utf-8"
> 
> Hi,
> 
> On 13/02/2019 16:56, neel@xxxxxxxxx wrote:
> > I don't think this is the right mailing list.
> 
> This is entirely the correct mailing list as it is discussing a
> technical policy of the network team. This policy can be found here:
> 
> https://trac.torproject.org/projects/tor/wiki/org/teams/NetworkTeam/SupportedPlatforms
> 
> > You probably shouldn't be using Windows XP, otherwise the EOL'd OS would
> > be a weak point in security. One option could be to dual-boot Windows XP
> > and Linux/*BSD, using Linux/*BSD for Tor and browsing, and XP for
> > applications that haven't been ported.
> 
> It is worth remembering that most people do not have the privileges to
> install software on the computers that they use.
> 
> Unfortunately, the current policy of the network team is that they will
> not even accept patches for Windows XP support and will merge changes
> that break Windows XP support.
> 
> I would be interested in statistics that show the current Windows XP
> user base, especially in countries with users that can most benefit from
> Tor. The policy has been drawn up primarily on technical considerations
> but if it is shown that this has negative impacts for large numbers of
> users then it may be reconsidered.
> 
> Thanks,
> Iain.
> 
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> ------------------------------
> 
> Message: 2
> Date: Mon, 18 Feb 2019 23:33:32 +0530
> From: Piyush Kumar Sharma <piyushs@xxxxxxxxxxx>
> To: tor-dev@xxxxxxxxxxxxxxxxxxxx
> Subject: [tor-dev] Sending multiple streams throuh a single Tor
> 	circuit
> Message-ID:
> 	<CAGkdf3fgFbqWYuLt-uEMT_XvaLoxkJbqCPYiosnY8Mw5teECyA@xxxxxxxxxxxxxx>
> Content-Type: text/plain; charset="utf-8"
> 
> Hello all,
> 
> I am a PhD student, and am working on some measurements in Tor.
> I am stuck at a point where i need to send multiple applications(streams)
> traffic through a single circuit.
> I am currently using torsocks/torify to send traffic of these multiple
> applications through Tor.
> The main problem is that, despite trying many different ways to achieve the
> same (sending multiple streams through a single circuit), i am not
> successful.
> 
> Things i have tried :
> 1.) Force Tor process to create only a single circuit at a time preventing
> any new circuit creation, so that any new stream would be attached to this
> only available circuit. To acheive this i have set the following Tor
> options :
> set __DisablePredictedCircuits to 1
> set MaxClientCircuitsPending to 1
> set newcircuitperiod to 999999999
> set maxcircuitdirtiness to 999999999
> The problem with the above method is that it seems to work sometimes
> randomly. But most of the times for some reason, a new circuit is still
> created.
> 
> 2.) Next, i assumed that maybe running torify multiple times for each
> application is the culprit, as it may try to create new circuit for each
> run. So i created a new bidirectional stream using socat, which listens on
> a local TCP port, and forwards the data to the Tor SOCKS port assuming that
> it will lead to a singe connection to local SOCKS.
> Even this did not work and still new circuits were created randomly.
> 
> 3.) Next i tried to attach streams to circuits manually, using the stem
> library following the link :
> https://stem.torproject.org/tutorials/to_russia_with_love.html#custom-path-selection
> . This seemed to work initially, but then after every 4-5 runs, the 
> streams
> seemed to detach automatically. Moreover, the original circuit crashed 
> too.
> 
> It would be great, if someone could tell a simple way to achieve the same,
> or would point me to any mistakes that can be improved in the above
> methodologies to make them work.
> 
> Regards
> 
> Piyush
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> ------------------------------
> 
> Message: 3
> Date: Mon, 18 Feb 2019 22:08:25 +0400
> From: meejah <meejah@xxxxxxxxx>
> To: tor-dev@xxxxxxxxxxxxxxxxxxxx
> Subject: Re: [tor-dev] Sending multiple streams throuh a single Tor
> 	circuit
> Message-ID: <86va1h0y1y.fsf@xxxxxxxxxxxxxxxxxx>
> Content-Type: text/plain; charset=us-ascii
> 
> 
> You could give the command-line tool "carml" a try. See here:
> 
>    https://carml.readthedocs.io/en/latest/
> 
> You'll want to use something like "carml circ *,*,*" to build a 3-hop
> circuit through Tor-chosen relays (or replace any of the *'s with a
> fingerprint) and then "carml stream --attach <circ-number>" to attach
> streams.
> 
> -- 
> meejah
> 
> 
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> End of tor-dev Digest, Vol 97, Issue 19
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