Questions tagged [client]

Questions which deal with Tor as a client.

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What is the authorization cookie of a .onion address?

I was reading the svn-archive (Section 5.2) to understand how a .onion address is generated. From my understanding, the "x.y.onion" address, comprises 'x' as 'the authorization cookie', and '...
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How to correctly read the control port when Tor is started with `--ControlPort auto --ControlPortWriteToFile <TEMPORARY_PATH>`?

It is possible to start Tor with the following arguments (or parameters in Tor's config file): --ControlPort auto --ControlPortWriteToFile <TEMPORARY_FILE_PATH>> So Tor writes to <...
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How to prevent torsocks timeouts from concurrent calls?

I'm running a distant HTTP server, serving a single page, used for delay measurements purposes. From my client, I'm generating multiple different custom circuits each being assigned a new upcoming ...
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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 &...
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Sending a request over Tor without binding port on localhost

Usually, Tor works like that: a daemon starts in background, reads torrc and listens on SocksPort (usually 9050). Then an application uses localhost:9050 as a SOCKS5 proxy and performs requests over ...
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Determining circuit tor client is using

One can get a list of circuits available for the tor client to use via the ControlPort. Here is the link to a python script someone wrote to get the list of circuits enter link description here Is it ...
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Chutney tor client connecting to outside authority servers

I am using Chutney to create an internal tor network. I have three authority servers and one exit relay. I am using the templates generated by chutney (networks/basic-min). I have created separate VMs ...
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Linux tor.service fails with "Unable to raise RLIMIT_MEMLOCK" at boot

[Archlinux 5.9.8-arch1-1] Since my kernel update 5.8.5 -> 5.9.3, tor.service fails at boot. The corresponding client setup is pretty plain but I can't find the hold-up ... $ tor --version Tor ...
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How TBB commands tor to use a "New Circuit for this Site"?

Tor Browser Bundle has "New Circuit for this Site" button (or Ctrl/Cmd + Shift + L shortcut), doing what it says: changing circuit for specific domain. The question is: how TBB do it? And ...
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SIGNAL response contained unrecognized status code: 514

I'm trying to use tor as a proxy for a few HTTP requests as described in Stealthy Crawling using Scrapy, Tor and Privoxy, but instead of privoxy, I'm using tor's built-in HTTP tunnel. This is my tor ...
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How does a Tor client find the correct HSDir to connect to when fetching a "descriptor" of a hidden service?

It seems that a Tor client connects to a HSDir through a circuit of 3 Tor nodes when retrieving a hidden service descriptor. But to access a hidden service, a user only needs to know the .onion ...
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Tor client node ignores `set_config` from Stem

I was doing some experiments for a project on a Tor test network. I used Chutney to set up a small network and Stem to control one of the client nodes in the network. Because I made some changes on a ...
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Seperating the browser from the client

I really like the simplicity and the interface of the tor browser's configuration and connection step. Maybe it is not as simple as the terminal but after trying to configure I had to admit defeat. I ...
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The scary torrc

I've been trying to set exit nodes and obfs4 bridge(country blocking tor) into my torrc file but I can't find a recent post about that or any beginner friendly explanation. Can anyone provide me with ...
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how to find onion websites? [duplicate]

In using the tor browser, what websites and search engines are available for locating, in particular, onion websites? Periodically, I'll see mention of such-and-such a URL for an onion website, but ...
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Tor Client limit bandwidth

Is there any way to limit the bandwidth used by Tor as a client? I use Tor as a client and I want to limit the bandwidth used by Tor without any additional application. Is that possible?
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384 views

Can not connect toTor : not able to authenticate relays

I set up a DirServer and 3 relays, but my client can not build a circuit. My info.log is like this: Apr 23 19:52:26.000 [notice] Tor 0.3.2.10 (git-0edaa32732ec8930) opening new log file. Apr 23 19:52:...
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End-to-End encryption using hidden services

How does end-to-end encryption between Client and Hidden Service work? I am trying to understand more about TOR and how it works and found something about a end-to-end encryption between the client ...
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2k views

{C++} (Linux) "Communicate in socket through tor"

I have a question, regularly we see the use of tor in socks5 for http requests, concretely if we wanted to make a client-server communication (socket) by asking the client to go by tor to send his ...
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Updating api for third-party developers

Has Tor an API to get information about the latest version? I want to use Tor with my software for getting access to blocked sites, and I want update Tor automatically. Have tor any solutions of this ...
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Why is it so hard to use an internal relay that has no Guard flag as Guard Relay?

I've set up a tor relay that has no Guard flag, but I want to use it as a Guard relay when I use Tor from outside. But sometimes it works and sometimes not. Why is this so hard and what can I do to ...
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Is there a front end for tor using only a browser? [closed]

I wonder whether there is a front end for tor using only a web browser. For example, I want to run tor in my router, and I want the computers connected to it to monitor the status of tor using only a ...
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2 votes
2 answers
426 views

Entry guards and multiple Tor clients

Suppose a computer user is running multiple Tor clients: a system-wide tor instance, Tor Browser, Tor Messenger, Ricochet, etc. Given that all of these clients independently select entry guard nodes ...
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3 answers
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Usage if I don't need anonymity but want to help others?

What is the recommended way to use Tor when I don't need anonymity myself, but want to help increase the anonymity of the whole network so that others can benefit? I'm not sure I can express my ...
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395 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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7 votes
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Suddenly my Tor hidden service isn't available

I created a Tor hidden service (a server binded to localhost port and torrc config'd to use the 127.0.0.1 xxxx) for clients to connect to. It was working great for a month or so, and now no one can ...
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2 votes
1 answer
1k views

Are there any effective traffic generation tools

One of the tactics discussed as a measure to defend against traffic correlation/timing attacks, is to have your Tor client sending traffic on a consistent basis. For example: If a client was always ...
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Do Tor Clients and Caches download the WHOLE totally new consensus file every one hour, or just update some lines in the file every 10 seconds?

I am reading the "Tor directory protocol, version 3" and there are some points that I cannot clearly understand, please help! there are 4 paragraphs as follows: First Clients, directory caches, ...
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636 views

How do clients know if a descriptor is new/changed/or disappeared from the Tor network?

I noticed a paragraph in dir-spec.txt as follow: To address these, we extended the directory protocol so that authorities now published signed "network status" documents. Each network status ...
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3 votes
1 answer
153 views

Does all direct clients have to talk to Directory Authorities to fetch the consensus at the first step?

I just read a description on Tor Metrics stating that: "These estimates are derived from the number of directory requests counted on directory authorities and mirrors". So my question is already ...
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1k views

Import a SSL Client Certificate into the Tor Browser

as an extra layer of security, I want to use client site SSL certificates for authentication on my hidden-service webserver. Within the original Firefox (version 36.0) this is already working (with ...
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Using your Tor relay as a client for Torbrowser and other regular Tor traffic: Is this helpful or hurtful to your anonymity? [duplicate]

I run a relay off of my desktop computer, and currently have Torbrowser and Tox configured to use it as a client as well. I seem to remember hearing long ago that a client that also acts as a relay ...
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4 votes
2 answers
654 views

How many times does client fetch the consensus file from directory authorities?

I am wondering that how many times a client "talks" to Directory Server (say, it can be a hard-coded Directory Authority Server, or just a normal Directory Server) to fetch the consensus file, knowing ...
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2 votes
1 answer
117 views

Finding out if a web user is using Tor

Recently I read an article on the Tor developer site about removing responses for certain calls to Tor programming built into Mozilla's code. By that token, and depending on what they remove, would it ...
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2 votes
0 answers
608 views

Whonix - How to get Java Plugin installed/working on Iceweasel? + GUI, Troubleshooting questions

I need help installing or messing with certain things on Whonix. Most important is getting Java to work on it in the browser. I've installed Iceweasel and Chromium, and JRE 8 and JDK6 (long story...),...
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2 votes
1 answer
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Probability by bandwidth: Using multiple or one Relay with equal total Bandwidth

Is there a higher probability, if an attacker is using one OR of bandwidth 5 MB/s than 5 ORs with each 1 MB/s? If you calculate the probability of picking a certain OR, you can use the weighted ...
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4 votes
0 answers
7k views

Bootstrapped at 10% for hours [duplicate]

I try to use Vidalia Bundle with certain application. It used to be stuck at 'starting Tor' if I recall correctly. So, I set it as 'run as client only' and added some bridges. Now it's stuck at 10% ...
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2 votes
3 answers
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TCP/IP Packet node-to-node propegation in Tor

A TCP/IP packet mainly has two parts. The header and data (mostly encrypted). When using Tor, and a packet leaves my Tor browser, where is my initial header information stored? If the destination ...
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1 vote
1 answer
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What are some ways an ISP blocks access to Tor network or to websites visited using a Tor client?

Is it possible for an ISP to block access to Tor network or block access to websites accessed through Tor network/client?
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3 votes
1 answer
1k views

Using Tor Browser with alternate Tor client - works but issues warning

I run a relay on a NAS box in my network. It is setup so that I can use it as a client from other machines in my network: [NOTICE] You configured a non-loopback address for SocksPort. This allows ...
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9 votes
1 answer
368 views

How many clients are typically using Tor simultaneously? How many circuits are simultaneously in use?

From Tor Metrics: Users, I get that there are currently about 2.4 million "directly connecting users". And in Questions and answers about user statistics, I see: Q: So, are these distinct users per ...
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1 vote
1 answer
148 views

Does Tor route traffic through clients?

My friend and I were talking about Tor in class, and I had my laptop out, running Tor for it's SOCKS proxy to access censored websites. My teacher interjected that I should not use Tor at school ...
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3 votes
1 answer
460 views

Few questions about connecting to Tor hidden services

I am hoping some one can help expand my knowledge on how a user connects to a hidden service, I have read the specification, but have found it confusing and still have some questions. Sorry if any ...
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3 votes
1 answer
43 views

Why is the HS not using the RP as the Endpoint of its rendezvous circuit?

Im asking myself, why the rendezvous circuit has a minimum length of 6 hops, which are: Client -> (a1) -> (a2) -> (RP) <- (b3) <- (b2) <- (b1) <- HS The Client is using RP ...
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3 votes
1 answer
913 views

What do these Tor warnings imply?

The Following warnings have been observed during Tor operations. [Warning] onion_skin_client_handshake failed. [Warning] circuit_finish_handshake failed.* [Warning] connection_edge_process_relay_cell ...
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1 vote
2 answers
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Can the relay I connect to expose me?

The way I understand Tor is that the "client" (say me) connects to a relay, and that relay is the only computer they connect to from then on. If that is the case, why can't a hostile relay simply run ...
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4 votes
1 answer
569 views

How much bandwidth does a Tor Hidden Service have?

When I set up a hidden service with Tor, will all clients connect over the same connection between the hidden service and the first relay/router? What is the bandwidth that I can probably expect?
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7 votes
2 answers
1k views

How can I optimize the connection bandwidth and response time for Tor-browsing?

How can I achieve the optimal connection for using Tor as a client, in terms of bandwidth and response time, given infinite resources? Can I set up a server with very strong connection and do a VPN ...
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4 votes
1 answer
371 views

Does traffic exit Tor at the same node for all ports?

Exit Relays can be set to allow traffic to exit the Tor network only over certain ports. Vidalia even makes this super-simple by giving options like "Normal, unencrypted Web browsing" or "IRC clients ...
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1 vote
1 answer
772 views

Is CircuitBuildTimeout saved through sessions?

In the Tor manpage I read about CircuitBuildTimeout. It is set to a default value of 60 seconds. However usually also LearnCircuitBuildTimeout is set. This enables adaptive learning of those timeouts. ...
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