Questions tagged [circuit]

A Tor circuit is a private network pathway built incrementally as a series of encrypted connections through relays on the network.

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Why does Torbutton circuit view not consistently show the correct exit node?

Making an arbitrary number of new identities will eventually cause the circuit view in Torbutton to show the wrong exit node. This is a screenshot I took to show the problem. Notice Torbutton thinks ...
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How to configure node restrictions in Tor Browser 8.5.6 for Android?

In Tor Browser for Windows, I can edit the torrc file for things like ExcludeNodes and ExitNodes. In Orbot for Android, there is a settings menu where these can be configured. In Tor Browser 8.5.6 ...
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circuit_build_no_more_hops: Bug: 2-hop circuit 0x7fd6935ce4c0 with purpose 5 has no guard state

For research, I need to create custom circuits using stem. I ran code, but a warning occurred in Tor application: [warn] circuit_build_no_more_hops: Bug: 2-hop circuit 0x7fd6935ce4c0 with purpose 5 ...
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Prevent Changing Exit Node

How to prevent changing exit node when browsing? (same IP address until browser restart) Note that it is not enough for me to specify just certain domains to have one IP - all domain visits must have ...
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403 views

Using Circuits in Parallel

Is there some easy method to use circuits in parallel in TOR using the STEM API. I wanted to use Website A for Circuit A and Website B for Circuit B. The problem is using threading the event listener ...
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1answer
2k views

Programmatically changing Tor circuit

Is it possible to change Tor circuit using Javascript or configuring it to change Tor circuit in a certain interval?
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Pre-built circuits for a predicted port

According to the Tor documents, Tor builds 2 circuits for each predicted port. I checked the source code to find out how it can understand that it has already built one or two circuit for a predicted ...
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35 views

Automated script for selecting fast TOR circuit?

I noticed a significant variance in bandwidth with different TOR circuits. Some are fast enough for streaming HD videos, while others take ages just loading web pages unless Javascript is deactivated. ...
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Why is the pub-key of diffie hellmann from Alice (OP) to Bob (OR) encrypted?

For building a circuit Alice contacts Bob (OR) and send her pub diffie-hellmann key encrypted with Bobs pub key. Bob sends his public-diffie-hellmann key and the session key hashed ("only" TLS ...
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Hacking Tor in my spy/thriller novel

Question: What are plausible circumstances in which one could hack an individual Onion Router to discover the location of the previous router? Reason: I’m an aspiring writer, working on a spy-...
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59 views

Looking for Conflux code

I'm looking for source code of Conflux tool, published here. There's statement: 'We implemented the multipath construction and cell sequencing, buffering, and reordering in the Tor source code (...
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138 views

Tor's circuits behaving in an unusual manner

As I understand it, Tor uses the same circuit for about 10 minutes or as specified in the MaxCircuitDirtiness option in the torrc file. However, I noticed something strange while trying to use curl to ...
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637 views

Tor browser 6.5-A1 not showing circuit

i just updated Tor to the newest version (6.5-A1) and i have a problem. since the update, for every site, when i try to look at the circuit, i just see this: While it should be like this While its ...
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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 ...
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25 views

Weighted Bandwidth for Rendezvous Points

I wonder how the WeightedBandwidth for Rendezvous Points (RPs) is calculated. I know, its a bit complicated, because RPs are chosen in a lot of different ways: Tor tries to reuse existing circuit ...
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1k views

Tor and circuits

I'm running Tor and need to know an IP address of my latest node. There is my config: # This file was generated by Tor; if you edit it, comments will not be preserved # The old torrc file was ...
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1answer
548 views

Tor Circuits vs Channels vs Connection

With respect to Tor source code, what is the different between 1- Circuits 2- Channels 3- Connections And how do they relate to each other? Thanks.
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How Tor is build and how can someone build something Tor/overlay network or routers?

Things I know: I have been using Tor for like a few years now, and I have a good idea of how "Tor/Onion routing" works. I have gone through the Tor's original paper (by Nick and Roger) and ...
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How to modify the TOR connection timeout?

TOR seems to drop the initial choice and select a new guard node, when it fails to build a circuit/connect to a guard node within a certain time interval (which is in the order of 30-60 seconds). Can ...
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How can i open a new Window at Tor Browser that has an new Circuit without click on the new Circuit Button?

I want open new windows directly with new circuit build
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27 views

Integrating Tor Browser and Python to get the same circute

This is a cross post from my StackOverFlow question(also I little edited). Ok, my question is quite straightforward: I want to use Python to make automated requests with stem (or any other library ...
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Tor Guard Selection

so I am trying to understand the Tor path selection in more details especially for the entry guard. So i read in the path-spec.txt that there is a bandwidth weighted entry guard selection where the ...
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24 views

Higher probability that nodes with higher bandwidth are selected for circuit

In the course of my master thesis I am currently trying to rebuild a simplified version of the selection algorithm from Tor. During my research, I found the following selection algorithm in some ...
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How to view circuit details (including security keys) in Tor?

I wonder if its possible to find the session keys for Tor's circuit for a hidden service such as facebookcorewwwi.onion (or public site)? There are 4 keys used in connecting to a site: Key between ...
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Why don't we have more than one entry node per tor circuit?

A typical tor circuit has Browser -> entryNode(A) -> relay(B) -> exitNode(C) -> Server This is prone to timing related attacks if both entryNode and exitNode are controlled by the ...
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1answer
58 views

Are relays chosen by location proximity, e.g. county, for circuit building?

Are relays chosen by location proximity, e.g. county, for circuit building? I know that there exists some rules but I didn't read anything about location. If the location of a client is not ...
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1answer
148 views

Does my internet speed matter?

Does my internet speed matter if I use same circuit, nodes/hops? There are 3 PC's: 1st one is connected to 100Mbps internet speed 2nd 500Mbps internet speed 3rd 1Gbps internet speed In case all of ...
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36 views

How to run TOR with circuits shorter than the default 3-node circuits

Anonymity is not required for a certain task but a changing exit node is. Might save some public resources and get a shorter ping time by running TOR with 2-node or single-node circuits. How can this ...
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60 views

How to view list of circuit IP addresses and countries on Android?

In Tor browser for Windows, I can view the list of the current circuit's IP addresses and the countries in which they are located, by clicking on the little circled 'i' icon just to the left of the ...
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103 views

Track Tor circuit via ISP logs

I have some question about the very basics of tor, as this keeps bugging me now for some time: As far as I know every tor node is only aware of the ip address of the following node. For example the ...
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1answer
540 views

Tor circuit for this site (-unknown-)

Whatever website I am on, it's never displayed in the "Tor circuit for this site" panel. It always says "(-unknown-)". Is this a problem?
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509 views

Why does this website is taking infinite time to load on Tor Broswer?

http://www.hao123.com/ The above mentioned website is taking infinite time to load in the Tor Browser. However if I open it without using Tor, it loads instantaneously. Any guesses why this behavior? ...
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3k views

Tried for 120 seconds to get a connection to [scrubbed]:6667 (waiting for controller)

I'm running some experiments using the stem library where I change circuit paths fairly frequently. Every so often, I get a stream detached event and a Socks5Error: 'TTL Expired' in my Python script, ...