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Questions tagged [relays]

Questions relating to relays, their maintenance, and operation.

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16
votes
4answers
10k views

Is it possible to make the Tor onion-routing path longer?

By default, Tor uses an onion-routing path with three hops: entry, relay (middle) and exit. Is it possible to configure (or, if necessary, recompile) Tor to use more than three hops? This would lessen ...
12
votes
3answers
11k views

Why is the first ip address Tor goes to the same one in Germany?

Every time I start Tor or switch to a new identity, the first web address in the list of Tor circuit connections is (Germany) 93.180.156.84. Is Tor supposed to work this way? I was under the ...
13
votes
2answers
956 views

Best way to set up a Tor lab?

What would be the best [and cheapest] way to set up a private Tor network for testing and experimentation? A rough size estimate is that it should consist of 12 or more onion-routers and should be ...
28
votes
2answers
11k views

What are good explanations for relay flags?

We received an Atlas patch that adds tooltips to relay flags, so that relay operators can better understand what these flags mean. The patch author used dir-spec.txt as their guide. I wonder if ...
4
votes
2answers
2k views

First node always the same! Is that how it's supposed to work?

I'm using Tor-browser-bundle with Vidalia. Yesterday, just out of curiosity, I clicked on "view the network." In the "connection" box, I see my circuits. About 5, 6 circuits each with 3 different ...
4
votes
1answer
3k views

Tor on linux - how to select exit nodes manually

On windows, there is an application called Advanced Onion Router (or, AdvOR) which lets you choose your tor exit nodes, and it lists them all out. This is great, because some exit nodes have ...
3
votes
1answer
165 views

How to know the number of circuits through my middle Tor relay?

I am running my Tor relay as middle relay. Is it possible to know how many circuits are there through my middle relay?
21
votes
1answer
671 views

What are the implications of a Relay hosting a Hidden Service?

Are there any implications if whilst running a non-exit relay, I also use the same machine to host a Hidden Service? Specifically: How will this affect the anonymity of the Hidden Service (in terms ...
10
votes
2answers
287 views

Would running Tor client and Tor relay simultaneously harm my anonymity?

If I run a Tor relay in a machine and at the same time I use the same instance as a Tor client, would that harm my anonymity ? Would it be better to use different Tor instances on the same machine? ...
7
votes
2answers
815 views

Is there a way to have a Tor relay use more bandwidth as certain times of the day?

I have Tor set up on a Raspberry Pi dedicated to just Tor. I provide what bandwidth I can during the day so that it doesn't interfere with my online activities. I would like to provide most if not all ...
6
votes
2answers
328 views

Should I run fast Tor relay or a stable relay is fine?

I recently started a Tor Relay on my own VPS. It has 500GB bandwidths each month, and I limited bandwidth rate to 1500 KBytes. I don't know which one is better for Tor network: Running a fast relay ...
4
votes
1answer
224 views

Where along the path is encryption used?

This question is born out of two questions that I saw coming up. Is the connection between my computer and the Tor network encrypted? How does Tor encrypt my traffic before it sends it to the server?...
13
votes
1answer
2k views

Is there a list of illegal Tor areas?

I just moved to Singapore and I'm wondering if it's a good idea to use the Tor browser (without a bridge) and run a relay (not an exit node). I realize that this question could be repeated for any ...
13
votes
1answer
4k views

Why does Tor use three hops, instead of two?

With onion-routing a relay in a circuit only knows its predecessor and its successor, while a "normal" proxy is just one hop, so that it knows who connects to it and where it has to connect to. ...
10
votes
1answer
923 views

How is data sent back from exit node to me?

I understand how the client sends the data through Tor to the sever. Onion routing Basically, it selects a set of nodes to form a circuit, say nodeA nodeB nodeC. It then encrypts the data this way: ...
4
votes
0answers
79 views

How to know the number of circuits through my Tor relay(OR)? [duplicate]

Can anyone tell me how to know how many circuits are being build through my Tor relay(OR)? I am using vidalia.
10
votes
1answer
2k views

What are the minimum requirements for running a relay?

If I want to create a bunch of Tor relays running Linux with various VPS providers and want to save on cost, what is the minimum hardware config that I can get away with while still effectively ...
10
votes
4answers
3k views

Is it possible to setup a private TOR relay

I have a proxy setup on one of my machines which is behind a router. And I need to use that proxy from another network. But my problem is that I cannot forward ports from the router to the proxy ...
10
votes
1answer
518 views

Do all relays in a circuit encrypt data response from a server?

I know that when sending data from the Tor client to a server it is encrypted and gradually get decrypted on the way there. This question is about when the server responds. The data must be encrypted ...
5
votes
1answer
4k views

Does the Tor Browser Bundle cache relay information?

When I restart the Tor Browser Bundle shortly after I've closed it I have the impression that relay information load faster. So I assume that the information about running relays is cached somehow. Is ...
2
votes
1answer
276 views

How do I set up a Tor relay as a docker container?

How do I use Docker to run a Tor middle/guard relay so that I can easily stay up-to-date with the latest software changes?
8
votes
2answers
1k views

How does having a dynamic IP for Tor relay affect its metrics?

I'm running a Tor non-exit relay on a network with a dynamic IP that changes every day. What is the update on how this can affect the metrics of my relay (mainly the stable flag, uptime, consensus ...
6
votes
1answer
507 views

What is the most appropriate kind of hardware to run a Tor relay on?

In the purpose of setting up a Tor relay that makes good use of a fast FTTH connection, what computer will do the job most efficiently at the time of writing, provided the following requirements are ...
5
votes
1answer
2k views

Port Reachability Test Failed _ detailed info

I am currently connected to Tor Network, according to Vidalia. When i tried to set up a non-exit relay, i got the following errors: Server Port Reachability Test Failed - Your relay's server port ...
4
votes
3answers
2k views

Can tor nodes (entry, exit, others) store IPs?

I'm a new Tor user. And I want to ensure several questions. Can "entry point" router store my IP? Can "middle relay" store "entry point" IP? Can "exit point" router store "middle relay" IP? I think ...
3
votes
1answer
283 views

Arm for Tor Relay Bandwidth Descrepancies

I'm running a Tor Relay on a Raspberry Pi running Raspbian. I installed Arm as to monitor bandwidth. The line that says "Bandwidth (limit: 800.0 Kb/s, burst: 1.5 Mb/s, measured 160 b/s)" claims my ...
3
votes
3answers
2k views

Too much Not anonim Exit Nodes on the TOR Network!

Many exit nodes are not anonym. It says "Hi I'm a Proxy Or Hi I'm a Tor Exit Node on host name". Here is a test site: http://ipcim.com/hu/. Host names: TOR-EXIT.CYLAB.CMU.EDU sipb-tor.mit.edu ...
3
votes
2answers
699 views

What would happen if I'm the last node (or relay) of a highly illegal activity?

Let's say I'm using Tor in order to anonymize my traffic, but only for privacy sake. I'm not torrenting, cracking or don't illegal things (of course). Now let's say that a very famous hacker or ...
10
votes
1answer
2k views

Can anybody explain the Advertised bandwidth, MaxAdvertisedBandwidth, Measured bandwidth, Bandwidth burst, RelayBandwidth rate?

I am confused about a few terms: AdvertisedBandwidth, MaxAdvertisedBandwidth, MeasuredBandwidth, RelayBandwidthBurst, RelayBandwidthRate, BandwidthBurst, and BandwidthRate. Can anyone please explain ...
5
votes
1answer
2k views

How do I get a list of tor relays?

I see that some websites such as this one have a complete list of all tor relays. How do they dynamically find all of the relays in the tor network?
4
votes
2answers
1k views

Where does tor look for directory servers?

I'm working on a project and need to determine how tor determines directory authorities. Looking at the source of version 0.2.8.0-alpha-dev (git-d015c70a118e4357) in file or/config.c there are a ...
3
votes
3answers
376 views

Relay getting traffic showing as unreachable?

UPDATE: See my answer below for instructions, I added a Dynamic DNS and added that as the "Address" in torrc. Once I did that I got the "Self-testing indicates your ORPort is reachable. Excellent." ...
2
votes
0answers
128 views

Are there any good practices to keep my Tor relay's private key safe? [closed]

Assuming that I run a Tor relay on a virtual private server running linux, are there any good practices to keep my relay's private key safe? We can take for granted that software packages constantly ...
2
votes
0answers
2k views

Setting up Tor relay and port reachability test failed error message [closed]

Greeting earthlings, I am attempting to set up Tor relay and the only issue I am encountering is a message stating that Server Port Reachability test failed and directory port reachability test ...
2
votes
1answer
193 views

Tor is making me an exit node despite configuration?

I am trying to create a non-exit relay. I have edited the torrc file to ExitPolicy reject *:*, but when I monitor my connection in arm it lists my relay nickname as an "EXIT" in multiple circuits. Is ...
2
votes
1answer
218 views

Windows Tor Browser Bundle check if relays is off

I read an article (about that Tor underground raid)) in that articel they said that installing the Tor browser bundle could be dangerous as it acts also as an relay and that illegal data could be ...
2
votes
2answers
811 views

Setting up non-exit Tor relay on Linux Debian Stretch

The server is running Linux Debian Stretch (9, testing). I have installed tor as follows: I created APT file for Tor: sudo nano /etc/apt/sources.list.d/tor.list I entered these lines: deb http://...
1
vote
2answers
151 views

How does Tor pass my traffic around and should I be worried about malicious relay operators? [closed]

I am not sure how does Tor work, how safe is it as I heard that some relays are ran by bad people or government agencies.
1
vote
1answer
373 views

Why does Tor Browser sometimes choose one entry guard (most of the time), but sometimes it choose two or three entry guards?

Some days ago I opened a thread asking how many entry guards Tor Browser currently picks. I found out, with help from forum volunteers, that the current source code of the stable version of Tor (0.2.9....
1
vote
1answer
103 views

How do bridges defend themselves against targeted scans?

Running a Tor Bridge recommends using port 443 and even when running a bridge using a pluggable transport an open (non-transport) bridge port seems to be required. Assuming someone runs obfs4 and a ...