- tor-relays - lists.torproject.org

A question about transfer - any advice?
by Charon 16 Aug '16

16 Aug '16

I'm running a Tor relay and everything is going great so far, but since I'm hosting on a commercial VPS, I have limited transfer (1 TB per month, overage: $0.02/GB). As such, I've set accounting to 10 GB per day so I'll at most use 620 GB in any given month and don't have to pay any overage costs. Q1: can I increase this limit without paying extra? I'm seeing that this 10 GB is hit very quickly, today within 9 hours. Q2: how can I adjust the bandwidth limit (80 Mb/s, burst 160 Mb/s) so that this 10 GB is more spread out over the day? Would it help to make this, say, 20 or 40 Mb/s? Thanks! Ps: if I haven't supplied sufficient details, please feel free to ask

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Re: [tor-relays] Pi3 mid relay dropping lil bit of packets
by Pi3 16 Aug '16

16 Aug '16

Hmm I just noticed that systemd HUPs tor exactly every 24h and now I have 16 packets lost with 30gb relayed. Can this be the cause? Is there a way to log these drops without putting too much load on ram/cpu? Just to have a timestamp?

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Re: [tor-relays] Pi3 mid relay dropping lil bit of packets
by Pi3 16 Aug '16

16 Aug '16

Ok thank you for replies, will keep an eye on this. On Tue, Aug 16, 2016 at 6:11 AM, Green Dream <greendream848(a)gmail.com> wrote: Counter-point... transmission errors are not a certainty: RX packets:323526978271 errors:0 dropped:0 overruns:0 frame:0 TX packets:249565709357 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:285274358053849 (285.2 TB) TX bytes:287754558279252 (287.7 TB) Ideally there should be no errors. :) 11 dropped packets isn't a big deal, but I wouldn't be quick to dismiss these errors by default. In certain cases things might be improved with driver updates, or sysctl tweaks, or a new ethernet cable, etc. _______________________________________________ tor-relays mailing list tor-relays(a)lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays

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spelling mistake
by I 16 Aug '16

16 Aug '16

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Pi3 mid relay dropping lil bit of packets
by Pi3 16 Aug '16

16 Aug '16

Hello, I just started running my little 5 mbits mid relay on Pi3 on raspbian and all seems to be dandy, it picked traffic nicely, hovering around 700-800 total connections, its not unusual to see it pushing full advertised bandwidth during peak hours (with ~20-25% load on 1 core, multithread pls come already), tldr so far nice. Except with 3days uptime and 20 gigs of data relayed ifconfig shows 11 (eleven) packets dropped on eth0. Google says it can be ring buffer on NIC getting full, but ethtool -g eth0 says Ring parameters for eth0: Cannot get device ring settings: Operation not supported ethtool -S eth0 = no stats available Htop avg load is 0.30, tor uses 121/950mb of ram. Im running standard conntrack cstate established related iptable rule with default drop. Pi3 is in LAN behind modem nat. It worries me because if I get more consensus, drops will probably go up. I didnt apply any sysctl tweaks. Using official deb NIC is Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter and its internally connected to usb2 by design - it shows under lsusb. ethtool says 100Mb/s full duplex. Tor log is clean with only heartbeat in it, syslog seemed ok also if I didnt miss anything. Or is it so marginal I should forget about it? Im not sure what should I do about it, any suggestions are welcomed. Thanks

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obfs4 - git how to ?
by Petrusko 15 Aug '16

15 Aug '16

Trying to use obfs4 from git on a test bridge : With "root" user: cd /home/TEST git clone https://git.torproject.org/pluggable-transports/obfs4.git ln -s /home/TEST/obfs4/obfs4proxy /usr/bin/obfs4proxy torrc file : [...] ServerTransportPlugin obfs4 exec /usr/bin/obfs4proxy managed ServerTransportListenAddr obfs4 0.0.0.0:48001 In the log when starting Tor : [...] [warn] Could not launch managed proxy executable at '/usr/bin/obfs4proxy' ('Permission denied'). [...] Tor is still working and is connected to the network... Humm, I think I've not understand how to use this source, and how to manage it ?! Thx for you help :) -- Petrusko PubKey EBE23AE5 C0BF 2184 4A77 4A18 90E9 F72C B3CA E665 EBE2 3AE5

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Re: [tor-relays] Pi3 mid relay dropping lil bit of packets
by Tristan 15 Aug '16

15 Aug '16

Personal opinion here: 11 packets dropped on 20GB of data sounds pretty small, and these packets might not even be from Tor. Literally any network service could have dropped those packets (ntp, ssh, updates, etc.) I wouldn't worry about it unless it starts to dramatically increase. On Aug 15, 2016 1:08 PM, "Pi3" <tor-relays(a)mixbox.pl> wrote: Hello, I just started running my little 5 mbits mid relay on Pi3 on raspbian and all seems to be dandy, it picked traffic nicely, hovering around 700-800 total connections, its not unusual to see it pushing full advertised bandwidth during peak hours (with ~20-25% load on 1 core, multithread pls come already), tldr so far nice. Except with 3days uptime and 20 gigs of data relayed ifconfig shows 11 (eleven) packets dropped on eth0. Google says it can be ring buffer on NIC getting full, but ethtool -g eth0 says Ring parameters for eth0: Cannot get device ring settings: Operation not supported ethtool -S eth0 = no stats available Htop avg load is 0.30, tor uses 121/950mb of ram. Im running standard conntrack cstate established related iptable rule with default drop. Pi3 is in LAN behind modem nat. It worries me because if I get more consensus, drops will probably go up. I didnt apply any sysctl tweaks. Using official deb NIC is Standard Microsystems Corp. SMSC9512/9514 Fast Ethernet Adapter and its internally connected to usb2 by design - it shows under lsusb. ethtool says 100Mb/s full duplex. Tor log is clean with only heartbeat in it, syslog seemed ok also if I didnt miss anything. Or is it so marginal I should forget about it? Im not sure what should I do about it, any suggestions are welcomed. Thanks _______________________________________________ tor-relays mailing list tor-relays(a)lists.torproject.org https://lists.torproject.org/cgi-bin/mailman/listinfo/tor-relays

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Do middle nodes create multiple connections to the same Exit node? (with different source port)
by don.gould＠tuta.io 15 Aug '16

15 Aug '16

Hello, Do middle nodes create multiple connections to the same Exit node? (with different source port) The reason I ask is because I am a little confused. Even the tor relay operators are completely honest and don't log anything, the ISP / upstream ISP could still log all the connections. So they can see: [MiddleNode IP]:[Source Port] ==> [ExitNode IP]:[Dest Port (ORport)] -- Timestamp + Duration of connection. So if I create a long running ssh connection that is going for 6 hours this will be unique to the middle node. During this 6 hours, if another tor client chooses the same MiddleNode + ExitNode, does the MiddleNode create a new connection to the ExitNode? (Can be found out using netstat) Or does it use the same connection that it already has established with the exit node? Thanks.

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High speed Tor relay advice
by i3 15 Aug '16

15 Aug '16

Hi all, I've ran multiple Tor relays before but I have moved to a new server and would like some advice. My new server has 10Gb/s connection (I've observed it at 900MB/s to the drives) with plenty of CPU and RAM to complement. I typically use default configurations on my relays but I feel that to get the most out of this one I'll need to do some configuration to tweak it. Does anyone have advice on getting the most out of this server, in terms of speed? Thanks

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90% of exits vulnerable to TCP off-path attack
by starlight.2016q3＠binnacle.cx 14 Aug '16

14 Aug '16

RFC-5961 CVE-2016-5696 http://www.theregister.co.uk/2016/08/10/linux_tor_users_open_corrupted_comm… FYI all

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