February 2015 - tor-relays - lists.torproject.org

Re: [tor-relays] Hibernating / Traffic limit and consequrnces for the network.
by Sebastian Urbach 03 Feb '15

03 Feb '15

On February 1, 2015 10:48:25 PM Markus Hitter <mah(a)jump-ing.de> wrote: > Am 01.02.2015 um 20:02 schrieb Sebastian Urbach: > > I would like to provide a good service for everyone, even at the end > > of the month. That's getting harder the more systems are not present > > at the end of the month. > > I could understand the discussion if it were about providing 500 kBit > continuously vs. 1 Mbit for 2 of 4 >weeks. But the particular case was > about providing no >less than 6 Mbit continuously, which is easily >enough > to comfortably browse the web, for doing large >downloads and probably > exhausts most internet >connections in unfree countries. Accordingly it's > >unlikely a single connection is hobbled by such a >bandwidth limitation. Ah, thats a misunderstanding. This is not part 2 of the discussion from a few days ago. I brought it up because i see this for quite a while right now and observed it again within the last days. I thought it was time for a broader discussion. -- Sincerely yours / Sincères salutations / M.f.G. Sebastian Urbach ----------------------------------------- Religion is fundamentally opposed to everything I hold in veneration - courage, clear thinking, honesty, fairness, and, above all, love of the truth. ----------------------------------------- Henry Louis Mencken (1880 - 1956), American journalist, essayist, magazine editor, satirist and critic.

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Stats [was: freenode]
by grarpamp 03 Feb '15

03 Feb '15

On Sat, Jan 24, 2015 at 3:16 PM, cacahuatl <cacahuatl(a)autistici.org> wrote: > Most of the network is under-utilised guards and middle nodes, hidden > services don't stress exits, which are the limited resource. Exits can and do serve in all the other node roles too. I don't think there has yet been a study to determine the actual unused capacity of the relays as grouped by flag permutations. Nor has compass been enhanced to support that selection matrix. > Triples? A HS doubles vs exit.

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two questions about bridge
by jchase 02 Feb '15

02 Feb '15

Hello, I have a bridge up and running for about 6 months. I have two questions. According to arm my fingerprint is 72DB4EE86C65856E3131A32D8E30EC8A2B72A73D . But if I look up rasptorholland in globe.torproject.org I find that my fingerprint is 1BCD3EBEFE17EEB86EEDE21D5E2DB8468E2864CF . And again according to globe.torproject.org my pool assignment is blank (the empty set). Are these related to each other and is something wrong? Thanks, J Chase

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Hibernating / Traffic limit and consequrnces for the network.
by Sebastian Urbach 02 Feb '15

02 Feb '15

Dear list, I would like to discuss hibernating and the consequences for the network. As someone running unmetered GBit systems i like to point out that there is a downside for the network when it comes to hibernating. Usually a few days before the end of every month my systems are getting slammed with traffic / directory requests. I thought about that and came up with the theory that a lot of systems with traffic limitations are dropping out a few days before the end of the month. This means more pressure on the remaining systems in the network. If the trend that more systems with limitations are participating increases we are going to see a serious imbalance in the network at some point. I know, poor unmetered systems ;-) I would like everybody to bear this in mind when it comes to the decision "Adjust the Rate or just open the gates and burn it as fast as possible". I'm in the fortunate position to be able to tribute a nice amount of money / traffic, but even systems with unmetered traffic can just help until the bandwidth / hardware limits are reached. It would be awesome if i could conbince some of you to take a step back and take a moment to look at the bigger picture. I would like to provide a good service for everyone, even at the end of the month. That's getting harder the more systems are not present at the end of the month. At this point i like to quote G. K. Chesterton: “We are all in the same boat in a stormy sea, and we owe each other a terrible loyalty.” Thank you for reading this and my best wishes for all of you. -- Sincerely yours / Sincères salutations / M.f.G. Sebastian Urbach ----------------------------------------- Religion is fundamentally opposed to everything I hold in veneration - courage, clear thinking, honesty, fairness, and, above all, love of the truth. ----------------------------------------- Henry Louis Mencken (1880 - 1956), American journalist, essayist, magazine editor, satirist and critic.

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Information leak through WebRTC in FF/Chrome
by JusticeRage 02 Feb '15

02 Feb '15

Hi everyone, I'm not sure this is the place to share this, but I though some of you might want to know: an information leak has been discovered on Firefox / Chrome, and it can be used to reveal a user's real IP address. The article is focused on VPN, but people who connect to the Tor network through a local SOCKS proxy are also affected. Demo here . -- JusticeRage

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entry guard interference?
by starlight.2015q1＠binnacle.cx 01 Feb '15

01 Feb '15

A couple of months ago I hard-configured two entry nodes that I trust for my own browsing. Both are very fast, very reliable nodes on the opposite side of the Atlantic. For about 20 minutes this evening the 'tor' daemon appears to have lost connectivity to the both nodes and I could not browse via Tor. Quite a few instances of this message were logged: Jan 30 22:59:06 Tor[]: Failed to find node for hop 0 of our path. Discarding this circuit. Neither of the configured guards were restarted during the outage, and they are located in diverse networks. The BGP looking-glass routes are different except for the first hop, which is a massive AS aggregation presumably for a trans-Atlantic cable operated by AS1299 (Telianet). I presume that this "cable" is actually a fully redundant load-balanced set of cables and any outage would be measured in milliseconds, or at most two or three seconds. Looking now, I see roughly 200 occurrences of the above message on Jan 14, 26 and 30. The reason I hard-coded the guard nodes was that, after extending the guard lifetime to 18 months, the guards were changing fairly often anyway. This bothered me. So the slightly paranoid side of my personality wonders if this is the result of a determined effort by one of the various spooky organizations out there purposefully disrupting Tor connections with the intent of forcing guard reassignment, naturally with the idea that Tor users might end up selecting guard nodes controlled by same said spooky organizations. Thoughts, comments and sharing of similar experiences are all welcome.

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Re: [tor-relays] Digital Ocean: Moving to better Plan (Abhiram Chintangal)
by Spencer Rhodes 01 Feb '15

01 Feb '15

On Feb 1, 2015, at 7:00 AM, tor-relays-request(a)lists.torproject.org wrote: > > On Sat, 31 Jan 2015 13:23:39 -0800, Spencer Rhodes <spencer(a)rhodespa.com <mailto:spencer@rhodespa.com>> wrote: >> If you are on the 1TB plan at DigitalOcean, you will want to set something like the following: >> >> RelayBandwidthRate 600 KB # Throttle traffic to 600KB/s >> RelayBandwidthBurst 1.2 MB # But allow bursts up to 1.2 MB/s >> >> rather than set a daily or monthly limit. The reason being that your server will stay up all the time instead of suddenly hibernating (essentially going offline) when it hits the cap. > > I'm not sure that's the best course of action. See the Tor Manual section for AccountingMax > > https://www.torproject.org/docs/tor-manual.html.en <https://www.torproject.org/docs/tor-manual.html.en> > > If you have bandwidth cost issues, enabling hibernation is preferable to setting a low bandwidth, since it provides users with a collection of fast servers that are up some of the time, which is more useful than a set of slow servers that are always "available". Yes, I suppose that for a non-exit relay speed is more important than uninterrupted service...

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Re: [tor-relays] Digital Ocean: Moving to better Plan (Abhiram Chintangal)
by Spencer Rhodes 01 Feb '15

01 Feb '15

> > > I have been running a tor middle relay[1] for the past few months. > > One thing that I noticed in the last two months is that my relay is eating > up the 1tb bandwidth in the first three weeks. So I am thinking of moving > to a better plan or tweaking the current config to serve the bandwidth so > that the relay is up for the entire month. > > I assume that you want a recommendation. A better plan probably means spending more money. Would be better for the network. If you can spare the money, go for it. > > If you dont want to spend more money than it would be a good idea to lower the Rate value until you end up within your traffic limit for the month. The benefit would be a permanent available relay. > > Hmm, I think I will try changing the rate and see what happens. Last year, I used a daily limit instead of monthly one. It drastically reduced the relays reported bandwidth ( 1Mbps to 60 kbps ). > If you are on the 1TB plan at DigitalOcean, you will want to set something like the following: RelayBandwidthRate 600 KB # Throttle traffic to 600KB/s RelayBandwidthBurst 1.2 MB # But allow bursts up to 1.2 MB/s rather than set a daily or monthly limit. The reason being that your server will stay up all the time instead of suddenly hibernating (essentially going offline) when it hits the cap.

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