Questions tagged [relays]

Questions relating to relays, their maintenance, and operation.

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How to use local relay with Tor Browser?

I am running a tor relay (which has the guard flag) in my LAN at an IP like 192.168.0.103. I would like to have Tor Browser use this relay as a guard/entry node so that all the tor traffic goes ...
1 vote
1 answer
226 views

Additional Tor security at the client's network perimeter

I have been studying Tor and its related security issues recently, and have some questions. Aren't the most effective recent attacks on Tor, actually attacks on the browser (or plugins), rather than ...
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2 votes
1 answer
73 views

Question about the assigned Guard node flag and whether if this flagged node can still be used as middle node

I would like to know some information before launching my Tor node. If my node is assign as a guard node, can it still be used as a middle node or has it became a permanent guard node?
2 votes
2 answers
492 views

change contactinfo relay

I have a tor relay, and I've changed the contact info in it (misspelled my email adress). I'm running the relay on a raspberry pi 2 using raspbian, installed through the raspian repos. I have ...
3 votes
1 answer
216 views

Restarting a tor relay. Does it go back to phase one?

I am wondering if you restart the relay or it is powered down for a period if time, does it go back to phase one and the life cycle starts again? As a new relay?
1 vote
2 answers
478 views

Can I disguise a server's IP with Tor (or a similar service)?

I'm interested in running my own webserver, and recently acquired a free .tk domain name. The option which seems best to me is their url forwarding option, which allows you to make the registered ...
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0 votes
1 answer
83 views

Set up arm for local access only

Since two days, I'm running a Tor relay I call charon. I heard about arm that shows you some statistics about your relay, which sounds like a great tool to have. For it to work, you have to enable ...
2 votes
1 answer
2k views

Running a Tor relay using Orbot

I cannot see options to run tor relay or exit node from Orbot (Android App). I think it would be a very awesome feature to have on mobile devices because mobile devices have very good uptime like ...
1 vote
1 answer
196 views

Tor router validation

my question is how does Tor validate routers? There are some specifications that mention that there are "validated" nodes, which have a "valid" flag (e.g. https://gitweb.torproject.org/torspec.git/...
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3 votes
2 answers
2k views

How to start tor on boot in Raspian Jessie?

I compiled tor from the source tarball annd configured it to run as a relay. The problem is that it won't start automatically on boot. I'm running raspbian jessie on a raspberry pi.
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2 votes
1 answer
211 views

Does a relay write to disk frequently?

I'm a new relay operator. I'm running a non-exit relay on a Raspberry Pi, whose main storage device is an SD card. I'm concerned that the relay software may be shortening the life of my SD card by ...
4 votes
2 answers
1k views

What is the point of a relay family?

Consider the following recommendation, taken from the official FAQ : You should set MyFamily if you have administrative control of the computers or of their network, even if they're not all in ...
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2 votes
2 answers
784 views

Are AES-NI crypto instructions used by my Tor (relay) server?

I have a server with Linux Debian 8.4, running a relay. I read that AES-NI could improve the performance of my relay. Or at least, less stress the CPU by crypto operations. Proof of AES-NI detected ...
2 votes
1 answer
94 views

Atlas and Globe shows my country not

I want to see my country (Austria) with Globe and Atlas! What can I do?
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1 vote
2 answers
556 views

Firewall rules Tor Middle Relay help

ORPort 9001 From external from the entry relays to internal the traffic runs inet proto tcp port >1024 to --> port 9001 ... but, then for my understanding: How runs the traffic out from here (the ...
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2 votes
1 answer
633 views

Multiple Tor relays vs one bigger relay on one connection

Today I got an idea, that I have multiple (5) computers, which I can have running all the time, so why not to make them all relays, right? Well for one, I have limited connection (50mbit up/down). So ...
1 vote
1 answer
460 views

How often can I / should I restart my new Tor relay?

To my current understanding, the longer the Tor relay operates continuously, the better. But what if I want to do some maintenance on the server? I don't want to lose the newly given Guard flag (...
1 vote
0 answers
38 views

Is my TOR installation compromised? [duplicate]

Firstly, I am not an Internet or TOR expert I have just started exploring it. BUT after using it OK for a couple of months I have recently noticed what to me is suspicious/odd. Nowadays when ever I ...
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1 vote
1 answer
512 views

Is it safe to run a relay-only node?

I have some spare bandwidth at home that I am willing to donate to the TOR project. I am thinking about running a relay-only / non-exit node, but only if it is completely safe and trouble-free for me. ...
1 vote
2 answers
408 views

ORPort different from 443 and 80, will I actually help anyone?

I have set up my relay as per this link I have one question. Since I have set ORPort 63547, will I actually help anyone? I run a web server, so ports 80 and 443 and other ports are sadly out of the ...
2 votes
2 answers
1k 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
0 answers
378 views

Tor Circuit failed to be created: destroyed

Okay, so I'm running a few experiments on Tor for a course project. I keep on changing different relays to see the effects on response time. But on some of the circuits, I keep on getting this ...
2 votes
1 answer
613 views

I'm not getting guard flag. Whats the requirements for that?

Also, im not getting the stable flag. I'v been online for about a month. 20.april I switched from win to linux. I've had some restarts of the relay, but not long downtimes. my fingerprint: ...
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2 votes
1 answer
86 views

What are the immutable characteristics that uniquely identify a relay?

In other words, what are the system "ingredients" that are not allowed to change without triggering attribution of a new fingerprint and the restart of the "ramp up" / flagging process? Please ...
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1 vote
0 answers
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A few questions about how bandwidth scanners work

I have a few questions related to how bandwidth scanners work. I would appreciate it a lot if anyone could answer any one (or all) of them: From what I read in the bandwidth scanners spec, my ...
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7 votes
2 answers
895 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 ...
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1 vote
2 answers
304 views

Measuring current load on a Tor relay

I was wondering if anyone could give me some advice on the usefulness of measuring the current load on a router. I have read the bandwidth authority specification, and I have a rough idea on how ...
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2 votes
2 answers
1k views

List hidden service managed by an HSDIR

if i have a relay with the HSdir flag, there is a way to know what are the hidden services descriptor hosted on it? in other word, can i list all hidden services present in the hash table of a relay? ...
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5 votes
1 answer
107 views

What if a powerful adversary controls a lot of relays?

Given that anyone can set up a relay server, what if a powerful adversary sets up a lot of relays around the world?
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3 votes
1 answer
793 views

How does de-anonymization work?

I heard that someone, who can read the traffic of many tor nodes (like the government of a country where many nodes are located) can find out which user is sending/reading data to/from which resource ...
0 votes
1 answer
60 views

Forcing every user to be a decoy relay?

Hypothetically what good or bad would happen if you forced practically every user to be a decoy relay. So Tor right now, gives you the option to be a relay which is awesome. But what would be the ...
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3 votes
2 answers
1k views

Sniff Tor onions address from a relay

Currently working on a Tor study, I would have a question regarding the tor hidden services. I read lot of technicals papers to better understand the tor working on this point, like these good ...
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2 votes
2 answers
821 views

Finding available bandwidth of a relay

Is there any method to get the available bandwidth of a Tor Relay. (Not the one the relay publishes itself.) Plus I wrote the following sets of code: from stem.descriptor.remote import ...
0 votes
1 answer
121 views

How does the TOR propagation of nodes work?

When a relay or HSP broadcasts its key (non exit node), how does a TOR client find it? How is the propagation of exit nodes and relay nodes (or HSPs) shared?
0 votes
1 answer
41 views

Does a tor message keep track of number of nodes it's gone through?

Let's say you have a message. Does it include the number of hops it has passed through? If no, what is stopping it from just being passed around indefinitely and never reaching an exit node? If yes, ...
2 votes
1 answer
62 views

TOR switched bridges

I open TOR with a bridge to a foreign country. During use when I opened a new tab the bridge switched to USA. I never saw this happen before. Is it suspicious or normal activity?
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1 vote
2 answers
525 views

is there something like tor for VOIP?

One of the killer applications of tor is the ability to create a new tor circuit at the push of a button. Is there something similar for VOIP where also your dynamic/static IP is exposed in the ...
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1 vote
1 answer
87 views

Nodes from Japan showing up as from Netherlands?

How does Tor determine what country a node is based in? For ex, tracerouting this current relay ip 45.32.55.55 shows it is from Japan, but Tor tags it as being from the Netherlands
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1 vote
1 answer
48 views

Circuits in use when time to re-boot

The occasional re-boot is needed for updates and things. Do I need to somehow clear / stop current relay circuits prior to doing a reboot to keep from messing someone up? Or do it just do a tor ...
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1 vote
2 answers
65 views

tor relays question?

I read this in some book : All connections between the first relay and the exit relay are encrypted, and each relay along the way knows only the previous and the next hop. ...
0 votes
1 answer
997 views

"Reloading tor daemon configuration... fail" after updating torrc

I'm running a relay node on my box, and I recently updated the torrc file (I set a RelayBandwidthRate and commented out AccountingMax) I then run: $ service tor reload and this is the output: * ...
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0 votes
1 answer
267 views

What is the connections tab in ARM used for?

I have recently set up a TOR relay (non-exit) and I am a little confused as to what the "Connections" tab in ARM is used for. For example, it will display something similar to the following: x 104....
2 votes
0 answers
601 views

How do bandwidth authorities measure bandwidth?

After reading a number of questions and resources on bandwidth measurements and life cycle of tor relays: can anyone tell me about the bandwidth weights? Can anybody explain the Advertised bandwidth,...
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4 votes
2 answers
2k 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 ...
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1 vote
1 answer
66 views

Preferred terms for Tor relay positions

Is it preferable to call the first relay the "entry" relay or "guard" relay? I've seen both in the published literature.
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2 votes
1 answer
404 views

I'm building lot's of circuits. What could cause this?

I run a relay. It has a SocksPort listening, but I don’t use it as a client for anything at the moment. It also hosts a hidden service. From time to time I get warnings like this: [warn] Your ...
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0 votes
0 answers
694 views

Is there a limit in the number of connections?

When I use Tor as a socks5 proxy for my applications, is there a limit in the number of connections I can perform to other hidden services (addresses.onion)? I am developing an application to check ...
1 vote
0 answers
1k views

Relay Can't Bind Tor to Port 9050

I'm setting up a relay on Ubuntu 14.04 using the instructions here: https://www.torproject.org/docs/debian.html.en#ubuntu. My config is super small and basic: ORPort 9050 DirPort 9030 ...
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8 votes
2 answers
2k 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 ...
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3 votes
1 answer
341 views

Best use of port 80 for my Tor relay

My relay is currently using the default ports (9001, 9030). I'm using port 443, but 80 is available. Would it be useful to use port 80 for either the ORPort or the DirPort? If so, which one? Thanks!
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