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Questions tagged [relays]

Questions relating to relays, their maintenance, and operation.

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Is there something to consider before starting a Tor non-exit Relay at home (100mbit)?

I recently increased my link to 1:1 100Mbit/s (down/up) at home. It is an unmetered connection IPv4 only. I have set up a bridge this morning. But I know little of bridges... I do not know if it could ...
Vlastimil Burián's user avatar
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1 answer
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SSL/TLS: Diffie-Hellman Key Exchange Insufficient DH Group Strength Vulnerability

I'm encountering an issue regarding the weak strength of the certificate key. The OVasp vulnerability scanner indicates that the Diffie-Hellman (DF) groups are weak on the service at port 444, which ...
Wiredancer's user avatar
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Why is my relay node acting as a client, extending and creating circuits simultaneously? i want your help!

I simulated a small Tor network using Docker.One DA,One Client,Three relays——relay1、relay2、relay3。when I run tor on relay nodes,I found that the relay node is attempting to create and extend circuits ...
samehada 's user avatar
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How to check which directory authorities assign/withhold which flags to my relays

Continuing the discussion from [tor-relays] Relay MIGHTYWANG consensus issues and loss of STABLE flag: [quote="Mighty_Wang, post:1, topic:282"] So next I checked the consensus and I see ...
michal roesler's user avatar
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And if DDoS attacks could enhance the anonymity of the Tor network?

The most effective approach for an attacker would be to establish Tor routing and send packets to trigger a chain reaction across 3 or more relays. Now, couldn’t these attacks potentially be an ...
setnit6's user avatar
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How to calculate the number of IPs an overall passive attacker would obtain by examining a connection?

A global passive attacker might be able to attempt various correlation attacks. In this example, I would like to calculate the number of IPs they would need to collect in order to have the IP address ...
setnit6's user avatar
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1 answer
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biulding tor relay

i dont know someone else asking this before but bere is my quetion if i had biuld tor relay to help network obviously the network will quickly biuld circut on it i wana put huge bandwidth on it its ok ...
Siwi Mala's user avatar
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101 views

Is an .onion service aware of its own circuit?

So I understand that when a user logs into an onion service, they are logged as ”127.0.0.1” and port now, does the onion service log the relays or know what relays it connected to in order to ...
LimelightLemon's user avatar
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113 views

Can a Hidden Service track you the same way an exit node can?

imagine if the onion service decided to be the malicious exit node itself. It’s not (Exit node) but could it travel back through its relays (possibly even skip) to the rendezvous point that track you ...
LimelightFaygo's user avatar
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Middle/Guard relay:WARN Bad password or authentication cookie on controller WARN Your server has not managed to confirm reachability for its ORPort(s)

OS: Ubuntu Server 22.04.2 I'm running a tor relay on an old laptop. I'm managing it on my main computer with ssh. From my perspective this is ideal because in theory I could manage multiple nodes from ...
chickencan's user avatar
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Malicious relays: why doesn't Tor use certificates for relays?

For many years, Tor is having issues with malicious relays. Verifying/contacting operators via their email addresses seems to be not an option. Wouldn't it be feasible for the Tor project to set up a ...
radix's user avatar
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What ports do I need to open on my UFW firewall? I cannot log into nyx. Do I need to also open my 9051/tcp port?

I have just installed tor middle relay using this youtube guide. I did everything up until the 12th minute of this video. I have tor installed on a vps server I run from Vultr. Then I have installed ...
michal roesler's user avatar
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1 answer
111 views

Coulde there be snitches among I2P peers or Tor relays?

I have been hypothesizing a case where a legal owner of some digital asset (e.g. a software, film, music ,etc.) is worried about the illegal distribution of the copyrighted material and wants to hire ...
Kaan Güven's user avatar
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133 views

New TOR DoS Attack -_-?

I'm running a pretty strong Tor Middle Relay, not a Guard yet - at least the CPU is good for a Tor Relay - and somehow my server experiences extreme usage right now, and in the picture we can see that ...
france1's user avatar
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2 votes
2 answers
112 views

Is adding bridges or relay helpful inside a censoring region?

I'm relatively new to Tor, so sorry for my dumb question. But is adding bridges, relays, using snowflake(this one is also detectable) or other plugins useful inside a filtering country? my guess was ...
user174174's user avatar
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If I exclude Tor nodes using option ExcludeNodes, will it exclude also some Tor nodes select by options EntryNodes and ExitNodes?

I have these options in my torrc file: ExitNodes {at},{be},{bg},{ch},{cz},{cy},{de},{hk},{is},{jp},{lu},{nl},{no},{pa},{ro},{sc},{sk},{si},{ua},{vg} EntryNodes {at},{be},{bg},{ch},{cz},{cy},{de},{hk},{...
phantomcraft's user avatar
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How can I get the right advertised bandwidth of a relay by looking at cached-microdesc-consensus file?

Let's take a random Tor relay: privater Tor Metrics says that it has a speed of 30 MiB/s: https://metrics.torproject.org/rs.html#details/57A295377F3167AD554B521F4615184943C39CE1 Looking this relay ...
phantomcraft's user avatar
1 vote
1 answer
68 views

Hello, how do I run my information over the tor network twice

I was wondering how do I send my data through the tor circuit twice (6 relays instead of the normal 3) if that would add extra security so I can be fully untraceable?
Arm's user avatar
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How do I use one and only node?

I'm looking forward to using Tor like a VPN. I learned about EntryNodes, ExitNodes, and MiddleNodes and how to set the country code for each and setting StrictNode 1 or something. When I set all these ...
user3290525's user avatar
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ISP frequently clears internet connection and knocks out relay circuits

reading fritzbox log, it shows a nightly scheduled ip re-establishment. This is due to anticipated disconnect from ISP side in immediate future. The relay node is knocked off circuits and all need ...
droid192's user avatar
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1 answer
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Does running a tor bridge from the same public IP as a relay before make such bridge prone to censorship?

My ISP changes my public IP about once a year. I used to run a public middle relay for a couple of weeks, and then I changed my mind and decided to operate a bridge. Let us assume that my adversary ...
John Smith's user avatar
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1 answer
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Does Tor still maintain a list of all relays?

I know that few years ago (2015 and 2017), there was a centralized list of all Tor Relays. Is this still the case? Or is there some decentralization of the nodes?
Shamoon's user avatar
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-1 votes
1 answer
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How can i change my ip addres

I tried: new circuit, new identity, set "ExitNodes {US}" and restart tor my ip address always remains the same.
displayName's user avatar
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understanding tor cell structure

I am looking to create my own version of TOR, and to do that I need to understand the way that relay, directory servers and clients communicate. but after reading Tor: The Second-Generation Onion ...
leon sonnenschein's user avatar
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1 answer
117 views

How do clients find what nodes to connect when connecting to a .onion link

I never seen a full explanation of how the server connects to these "introduction" nodes to the client, I understand the idea of the tor path ending with the exit node that's then resent ...
Raccoondude's user avatar
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2 answers
210 views

Will Tor automatically detect when my IP address changes when running a relay?

I have an IP address that changes roughly every 24 hours. About two out of three times, I’ve seen Tor detect that my IP address changed; but the last time it didn’t work and I had to restart the relay ...
xrisk's user avatar
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2 answers
112 views

Tor comunicating to other IPs beside my guard node, should it happen?

Running netstat and analyzing my established connections I noticed sometimes tor talks to other IPs that aren't my guard node. I'm not sure if this is supposed to happen because I very very new to ...
buggedmind's user avatar
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1 answer
134 views

What's the difference between 'secret_id_key' and 'ed25519_master_id_key'?

I'm running a TOR relay and I'm confused with the node identity keys. The secret_id_key is the identity key that was used in version 2, but now the ed25519_master_id_key is used for version 3? Thanks.
UIB's user avatar
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3 votes
1 answer
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How can an external observer detect if a malicious relay does excessive logging?

In the entry "Criteria for rejecting bad relays" on the Network Health Team's wiki I found an interesting bullet point: Malicious relays … Excessive logging (over notice) during normal ...
pipe's user avatar
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1 answer
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Can a Tor relay run on MacOS?

I have a powerful computer and a fast internet connection. I'd like to support the Tor network by operating a relay. I've seen that there are relay packages and instructions for various versions of ...
LoveMyMac's user avatar
0 votes
1 answer
32 views

Where in the codebase does Tor detect outages?

It seems clear to me that Tor has some facility for discovering when connectivity within a circuit is lost. I'd like to find that point and add a log_debug into it, as the current Tor logging does ...
Rob Hansen's user avatar
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1 answer
343 views

How can I find the IPs of introduction points for a hidden service?

I was wondering if it is possible to find the IPs of introduction points used by a hidden service. Specifically I was looking at facebook's hidden service.
Charles's user avatar
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50 views

Any tor users who are looking to run relays on Windows?

So this is a tool I made which allows easy operation of tor relays on Windows. Made for people who have Windows but want to run relay without pain of Linux VM. Features: Auto installs tor and keeps up ...
theoneandonnly's user avatar
1 vote
0 answers
129 views

TOR relay and DS-Lite, no public IPv4, tunnel workaround?

I wonder if anyone here has tried this before and maybe could give me some advice. My internet connection at home is dual stack lite so I don't have a public IPv4 address and therefore can't setup a ...
MaxthonFan's user avatar
4 votes
0 answers
118 views

Tor hiden service ratelimits

While we are building a denial of service protection using and onionbalance for our HSv3 resources was discovered an interesting thing: during testing with simulated DDoS (launched 1000 tor client ...
Culture's user avatar
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0 votes
1 answer
181 views

Fast/Slow relays in Tor

How does Tor classify fast/slow relays (as in what is the bandwidth bar)? Is the Tor Path Selection protocol biased towards selecting fast relays for circuit construction? (The answer here How does a ...
Arushi Arora's user avatar
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0 answers
208 views

Advertised bandwidth rising but consensus weight falling?

I am a new non-exit relay operator, currently running TOR v4.5.4 rc on a RaspberryPi 3B+, on a FTTH connection. My relay is https://metrics.torproject.org/rs.html#details/...
torpi's user avatar
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0 votes
1 answer
762 views

Running a Tor Bridge Relay on Ubuntu

I am trying to set up a bridge relay on my ubuntu 20.04 system but getting stuck at step 3. Edit your Tor config file, usually located at /etc/tor/torrc and replace its content with: When I open the ...
rasputin's user avatar
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0 answers
750 views

torrc file for a private Directory Authority in Private Tor network

I am trying to build a private tor network using raspberry pis. As a start, I am trying to emulate the basic-min network configuration (4 Authorities(also works as non-exit relays), 1 Exit, 1 Client) ...
Ish Kav's user avatar
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0 votes
1 answer
411 views

How can I analyze Tor traffic on my relay?

I'm doing a research on Onion routing (Tor). I've successfully set up a middle relay for the purpose of analyzing Tor traffic. I'd like to: See all circuits that my relay is currently part of See &...
Researcher's user avatar
0 votes
0 answers
57 views

Server is unreachable

I've set up a computer in my home just to run a relay. I have a fiber connection to my house and want to put it to good use so im trying to run tor. My server is currently running debian,(Ubuntu) as ...
Skanda Mahesh's user avatar
1 vote
1 answer
905 views

Do relay and entry nodes keep logs?

I research tor, and have some question bout it. Can relay node know which entry node transferred certain traffic? Or can't, cause tor uses ephemeral encryption and after circuit ends, keys removed, ...
Qelare's user avatar
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0 votes
1 answer
84 views

Does an exit relay also relays non-exit traffic?

I would like to run an exit relay, but I don't want to deal with almost any abuse issues. So I figured to only exit to hidden services. If my understandings are right, the exit policy and the relay ...
noarch's user avatar
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1 vote
1 answer
153 views

cannot upgrade to tor unstable version

i run a tor relay on a raspberry pi3. all is ok so far but when i try to upgrade tor 0.4.2.7 to the latest unstable version it says something like: N: Skipping acquire of configured file 'main/binary-...
jimmy's user avatar
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0 votes
2 answers
128 views

500 new relays at the beginning of each month?

.. and then they gradually vanish over the next 4 weeks! Can anyone tell me why this sawtooth pattern has appeared in the Tor relay metrics since August? On the 2nd August, 2nd Sep and 2nd Oct, about ...
mr.lark's user avatar
0 votes
2 answers
165 views

connect two server via tor

if we have two server let's say server1(92.92.92.92) server2(76.76.76.76). I'm working on redirect incoming traffic on server1 port 4444 to server2 port 12345,this is easy with iptables rule on ...
tlf05649's user avatar
0 votes
3 answers
185 views

My new relay is recorded in the wrong country

On relay search my new Tor relay's country is given as Ukraine. In fact it's in Germany. Also the AS given on relay search is wrong. Have I configured the relay wrongly? Can I change this so its ...
mr.lark's user avatar
1 vote
2 answers
487 views

Hidden Service Behind a Bridge

Without a bridge, my hidden service is accessible for others. But when I use a tor bridge, this hidden service is not accessible. My torrc is: UseBridges 1 Bridge obfs4 my_bridge_ip:my_bridge_port ...
gary's user avatar
  • 111
0 votes
1 answer
108 views

Use Tor as Proxy for Internet

I want to use Tor as a proxy. Or more specifically reroute my Internet traffic from for example my browser over Tor to change my location. I found out you can set entry and exit nodes by country if ...
youngtrashbag's user avatar
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1 answer
195 views

is this a threat to tor?

an adversary controls some middle nodes and they log ip adresses of users and times they connect. if an adversary controlled middle node receives traffic from one of their own controlled middle nodes ...
user30454's user avatar

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