- tor-relays - lists.torproject.org

Setting up a "hidden" exit node
by Joel Hobson 09 Aug '11

09 Aug '11

Hi all, I'm an undergraduate student working as a research assistant for the summer. My current task is to figure out a way to measure delay caused by individual nodes (we want to replicate this paper: http://cis.poly.edu/~ross/papers/Tor.pdf <http://cis.poly.edu/%7Eross/papers/Tor.pdf>). It seems to me that the easiest way of accomplishing this would be to run an exit node and construct a two-hop circuit to it. OP ------> Node to be measured -------> Exit node Since the OP and exit node are under my control, I could measure the time it takes for any packets to reach the exit node from the OP. I want to be the only one who can use this exit node so I don't have to worry about getting approval from the school to run an exit node (could be time-consuming). I realize this is pretty far from any design goals the developers have, but is there some way of running a hidden exit node? One that doesn't appear on any directory server (PublishServerDescriptor 0 might work)****, but can still be used if you know its IP address? The Tor Control Protocol makes it easy enough to create a custom circuit (discussed here: http://thesprawl.org/memdump/?entry=8) but it won't accept IP addresses for nodes. I can put an IP in exitnodes in the torrc file, but exitnodes doesn't seem to have any effect, even when StrictExitNodes is set. Thanks Joel

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bb
by 向梁 06 Aug '11

06 Aug '11

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Newbie Messed up Relay Setup
by flgcrz 05 Aug '11

05 Aug '11

Hello, Is this the right place to post if I'm having difficulties? I've done quite a bit of searching forums and things. I'm new to this and have been struggling a bit to get Tor and Vidalia working smoothly. I think I know what the problem is . I had my relay setup and working fine but Tor was not working. So I looked around a bit and I found this post on the Ubuntu forums and a useful guide to setting up Tor Vidalia and Polipo. I followed the instructions in that guide and finally Tor is working both when Vidalia boots and in my browser albeit with Torbutton as opposed to Foxyproxy (recommended in the guide). I thought this is great progress finally. But no I messed something up. In my enthusiasm I had copied the torrc from the guide without backing up my original and now my relay is no longer working. There are I believe 2 issues. The first I think is that the original references to my keys have been deleted. The second is I think something to do with the setup I have for ControlPort. I don't think its a firewall issue. I am running a firewall locally and have port forwarding setup on my wireless router for 9001 and 9030 Like I said I'm new to all this so I could be wrong. I also don't know a lot about encryption so I am hesitant to post the details of my logs on a public list. I've messed things up so if this is too much of a pain is there a way to just wipe out old keys and start a new relay from scratch? Thanks you in advance Best Kevin ---- Here is the post on Ubuntu Forums http://ubuntuforums.org/showthread.php?p=11117515#post11117515 Here are some of the details from from my logs ( minus the encyption stuff which I can post if those who know better think its ok to do so) Aug 04 18:38:10.018 [Info] resolve_my_address(): Guessed local hostname 'CRZ' resolves to a private IP address (127.0.0.1). Trying something else. Aug 04 18:38:10.019 [Info] resolve_my_address(): Interface IP address '192.168.1.130' is a private address too. Ignoring. Aug 04 18:38:10.023 [Info] resolve_my_address(): Address 'CRZ' resolves to private IP address '127.0.0.1'. Tor servers that use the default DirServers must have public IP addresses. Aug 04 18:38:10.023 [Info] router_pick_published_address(): Could not determine our address locally. Checking if directory headers provide any hints. Aug 04 18:38:10.024 [Info] resolve_my_address(): Guessed local hostname 'CRZ' resolves to a private IP address (127.0.0.1). Trying something else. Aug 04 18:38:10.025 [Info] resolve_my_address(): Interface IP address '192.168.1.130' is a private address too. Ignoring. Aug 04 18:38:10.026 [Info] resolve_my_address(): Address 'CRZ' resolves to private IP address '127.0.0.1'. Tor servers that use the default DirServers must have public IP addresses. Aug 04 18:38:10.027 [Info] router_pick_published_address(): Could not determine our address locally. Checking if directory headers provide any hints. Aug 04 18:38:10.027 [Info] update_consensus_router_descriptor_downloads(): 0 router descriptors downloadable. 0 delayed; 2494 present (0 of those were in old_routers); 0 would_reject; 0 wouldnt_use; 0 in progress. Aug 04 18:38:10.028 [Info] resolve_my_address(): Guessed local hostname 'CRZ' resolves to a private IP address (127.0.0.1). Trying something else. Aug 04 18:38:10.029 [Info] resolve_my_address(): Interface IP address '192.168.1.130' is a private address too. Ignoring. Aug 04 18:38:10.030 [Info] resolve_my_address(): Address 'CRZ' resolves to private IP address '127.0.0.1'. Tor servers that use the default DirServers must have public IP addresses. Aug 04 18:38:10.030 [Info] router_pick_published_address(): Could not determine our address locally. Checking if directory headers provide any hints. Aug 04 18:38:10.031 [Info] routerlist_remove_old_routers(): We have 2617 live routers and 1253 old router descriptors. Aug 04 18:38:10.032 [Info] resolve_my_address(): Guessed local hostname 'CRZ' resolves to a private IP address (127.0.0.1). Trying something else.

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How to fully utilize resources for relay?
by Steve Snyder 05 Aug '11

05 Aug '11

I have a machine that is dedicated to being a Tor exit node. How can I maximize the performance (high throughput / low latency) of Tor traffic? I have plenty of under-utilized CPU and RAM resources on this system. According to TorStatus, my bandwidth is rarely maxed-out. This is on a Linux system, currently running Tor v0.2.2.30-rc. So... what resources can I spend to make this a better Tor node? Thanks.

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Number of Connections Open
by Tim Sally 02 Aug '11

02 Aug '11

Hi! I'm working on a model to estimate the number of connections an OR has open as a function of the OR's bandwidth. I could really use some help confirming that my model is reasonable. Would any relay operators be willing to share the results of some variant of netstat | wc -l and the bandwidth of the relay? Thanks, Tim

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Flags
by vinc3nt 01 Aug '11

01 Aug '11

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 hello, I have set up a Tor relay. Where can I find online documentation that explains the meaning of all flags set: Authority Bad Directory Bad Exit Exit Fast Guard Hibernating Named Stable Running Valid V2Dir Some are intuitive, but others do not understand the meaning tnx - -- vinc3nt +--------------------------------------------------------------------+ |GPG Id key: 4096R/1E2A7F06 2010-11-23 http://pgp.mit.edu | |Key Fingerprint: 1355 B43E 99A9 37EF 5F27 A399 B71C 8AEB 1E2A 7F06 | |() ascii ribbon campaign - against html e-mail | |/\ www.asciiribbon.org - against proprietary attachments | +--------------------------------------------------------------------+ -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQIcBAEBAgAGBQJONoYsAAoJELcciuseKn8GEX4P/jmXuLHL7nKyDA7vOegKMeii HgesWX2cUbxpVkOzbVZ/ubtE2RMFmVfikS4ChbcIFzAECOKRctY1lDy45Sihwtit jNysYwm9Fh/3uBlpRPMdMhHA8g7rr6Xh5lDvkSTdeyJVAx0xnOLNEhT3Oi2aYsZF a2vgcwTLdsvgDRxMynDhDKwxKIfyPZk443gEYMaT3kxVlxr18zD8XDsFxbVOl9LO HhCZ3USJYHW/rWf3v1+HsIx28CHl0RaxPkwtMzX9oXvN5mLYyYy1O0w2wV7mDnp3 59BOAhxbe3oY6F4fmBrw3FyPfgUDPfD0DaY6UZxnokXeRG743XK8AkfXTkiP0g4B /MxBqWypqcNGUvlToii7GBW8RZt+wBukeS50Qok8+RLIIB7SZSPVx90GnZxCl2q5 tnrlqM0dNKi0/jXUHpcmuxsYVLGQ+k+8Ky2E106pagYiayYeajbhuXjPOmZIqYMu dXTqotR1p4JbJFnrmyFRomgDetKUBaZRk6Kjnln8grQyMglPoKFb/1EvtgxrKMOf hysEakFhIAV8yeCYiQAPm0vfSudgpz6i6reStqTMVrjQqm/HObedSTvN+h/Oy2QX MR1r8TTOSdRZgglxy59g/H4EruQxSET5P/RdnCBcRbLp6xDymPOilpSl+bhBS8KO zOt0C+asU/krtS/XDVzt =KUbN -----END PGP SIGNATURE-----

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stable flag
by Softail 25 Jul '11

25 Jul '11

My relay seems to gain and lose the stable flag every day for the last several days. It's been up more than a week. Is this normal? I don't recall seeing this on a previous hosting provider and I suspect there is something going on with the network. I'm thinking of setting the log level to info or debug to try to figure out what is going on. Is that a good idea? Is it likely to be informative? Thanks -- A man in chains knows he should have acted sooner... Julian Assange

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possible bad exit or bad circuit
by cmeclax-sazri 25 Jul '11

25 Jul '11

jceaovh Pandora18 tornodeca I was browsing a website that I hang out on all the time, and it came up with a Privoxy forwarding failure error. I tried another website and got the same error. I restarted Privoxy; didn't fix it. I brought up Vidalia and looked at the circuits. The one listed above was first; when I attempted to view the website, it added a line with the name of the website, labeled Closed, which quickly disappeared. I closed the circuit and refreshed the website and it came up.

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Strange warnings
by Klaus Layer 22 Jul '11

22 Jul '11

Hi, My relays suddenly show the following warnings: "Tried to establish rendezvous on non-OR or non-edge circuit." Is this something I should worry about? I am wondering why several of my relays shows that at nearly the same time. Thanks, Klaus

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Odd activity on my rely
by George Gemelos 19 Jul '11

19 Jul '11

I'm running an exit node, yreka and have noticed as single IP address that has been connected for at least a day, probably longer, which is pushing anywhere from 3Mb to 9Mb but receives very little traffic back from my node, sub 500Kb. My traffic to this machine is going out of 443 (my ORPort) and being sent to port 50090 on the other machine. I only allow exit traffic to ports 80 and 443. So I do not think this is exit traffic. I have also checked on blutmagie and could not find the IP as a relay which would suggest that this is a TOR user and I am serving as an entry node. I have never seen such speeds for a single user. The one sided nature of the traffic and its size have my interests peaked. I just wanted to verify that this is not unusual and something that I should investigating. I did not include the IP address of the machine because I was not sure it would be in the spirit of TOR to post such information. Any feedback would be greatly appreciated.

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