<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Hi,</div><div><br></div><div>chutney can be used to setup a large test tor network running solely on a single machine, with no outside network access required.</div><div><br></div><div>The tor/src/test/test-network.sh script will configure an entire test tor network and verify connectivity from each client through the network.</div><div><br></div><div>This works best with tor 0.2.6.2-alpha due to some bootstrap speed improvements, although with larger networks you may need to use --delay to increase the bootstrap time.</div><div><br></div><div>I suggest you start with --flavour basic-min, and move through the sizes to --flavour basic-100 (my machine can barely run basic-100).</div><div><br></div><div>You can also manually modify the amount of random data sent while verifying connectivity (look for "Octets" in chutney's TorNet.py). It would be nice if this amount was configurable (patches gladly accepted).</div><div><br></div><div>It would also be nice if these connections were done in parallel, but I don't think that's the case (clarification or patches gladly accepted).</div><div><br></div><div>teor</div><span style="background-color: rgba(255, 255, 255, 0);"></span><br><blockquote type="cite"><span style="background-color: rgba(255, 255, 255, 0);">Date: Sun, 11 Jan 2015 14:18:01 +0100<br>From: webmaster <<a href="mailto:webmaster@defcon-cc.dyndns.org" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="15">webmaster@defcon-cc.dyndns.org</a>><br><br>Hi Julien,<br><br>thats exactly the setup I'm actually using. I use my relay as a client.<br></span><span style="background-color: rgba(255, 255, 255, 0);">From my point of view it seems that the relay is used as a entry point</span><span style="background-color: rgba(255, 255, 255, 0);"><br></span><span style="background-color: rgba(255, 255, 255, 0);">(without guard flag) in this constellation (correct me if I'm wrong).<br><br>Torsocks could solve my problem.<br><br>My goal is to examine the influence of a high traffic load on my relay<br>to perhaps adjust my server settings (number of open file descriptors,<br>...).<br><br><br><br></span><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Am 11.01.2015 um 13:05 schrieb Julien ROBIN:<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Hi,<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">If you are on a dedicated high Bandwidth server you can maybe use your relay as client, an idea could be to open a lot of "wget" commands.<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">sudo apt-get install torsocks<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">usewithtor wget URL<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">But it's not guaranteed that the selected circuits will be super-fast (first reason to open lot of wgets simultaneously)<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Of course, doing that you consume some useful bandwidth for users (but if it's quick, after all you're a Tor user like another!)<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">And it's not totally the same that relaying data as server, since it's using the client part of the tor process (but starting from here, I cannot help you anymore since I don't know what is written in the code ;)<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">So if anybody have another better idea<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Something that would generate a full customized circuit for example, or reduce the amount of used hop for the test. <br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">It already exists "EntryNodes" and "ExitNodes" commands for your torrc file, but no server can be used as EntryNode if it's not Guard already, and I'm not sure that some "MiddleNodes" command exists.<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Last things, you can also make you machine's CPU working hard on a lot of threads simultaneously, and watch if Tor is suffering or not (like "too many circuit creation request!" in the log).<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Or make some tests with Iperf for high bandwidth load in parallel ("iperf -s" on a fast machine, "ipers -c Ip -t TimeInSeconds -p port -P ParallelsTcpConnexions" on the other machine - this one will send data (chains of <a href="tel:1234567890123" x-apple-data-detectors="true" x-apple-data-detectors-type="telephone" x-apple-data-detectors-result="19">1234567890123</a>...) to the server)<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Good luck ! By curiosity, I'm interested also, but I would understand if this kind of easiness in creating bandwidth statistics and degraded path (for analysis, for example) is not really sought by developers.<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Best regards,<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Julien ROBIN<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">----- Mail original -----<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">De: "webmaster" <<a href="mailto:webmaster@defcon-cc.dyndns.org" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="20">webmaster@defcon-cc.dyndns.org</a>><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">?: <a href="mailto:tor-relays@lists.torproject.org" x-apple-data-detectors="true" x-apple-data-detectors-type="link" x-apple-data-detectors-result="21">tor-relays@lists.torproject.org</a><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Envoy?: Dimanche 11 Janvier 2015 11:59:12<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Objet: [tor-relays] Simulate High Tor Load<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Hey Folks,<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">is there a common procedure for testing a tor server for a high load?<br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);"><br></span></font></blockquote><blockquote type="cite"><font color="#000000"><span style="background-color: rgba(255, 255, 255, 0);">Thanks in advance</span></font></blockquote><div><br></div></blockquote><blockquote type="cite" style="-webkit-text-size-adjust: auto;"></blockquote><span style="-webkit-text-size-adjust: auto;"></span></body></html>