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18
votes
3answers
14k views

How can I install Tor from the source code in the Git repository?

It is sometimes desirable to compile Tor from source, and perhaps run an unreleased version (e.g., to test the latest changes, use new features unavailable in the latest release, etc.). What is the ...
1
vote
2answers
165 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.
2
votes
0answers
154 views

How do torrent clients over Tor affect the network? [duplicate]

This blog post from a few years ago, suggests that: The first answer is "don't run Bittorrent over Tor". We've been saying for years not to run Bittorrent over Tor, because the Tor network can't ...
49
votes
7answers
131k views

How can BitTorrent traffic be anonymized with Tor?

This blog post from a few years ago suggests that using BitTorrent services over Tor is a bad idea for multiple reasons. However, it also suggests some fixes to get over these problems. Is using a ...
16
votes
1answer
1k views

Is it safe to run an entry node server?

After some research, I found that there are mostly relay (middle) nodes, and less exit and entry nodes. But why? The connection from the client to the entry node is encrypted, so there should be no ...
27
votes
5answers
12k views

Securely hosting a Tor hidden service/site

There are some detailed instructions for setting up a Tor site at torproject.org1. It seems that it would be most secure to use a dedicated machine for this task if possible. I've read elsewhere that ...
19
votes
2answers
2k views

How can I switch from one Tor Browser Bundle version to another? [closed]

I'm trying to use the Tor Browser Bundle (TBB) for everyday surfing. For convenience reasons I use bookmarks and sometimes install some addons. When a new version of the TBB comes out, I lose all of ...
12
votes
1answer
2k views

How can I use Chrome through Tor on OS X? [closed]

How do I properly set up Chrome on my Mac OS X machine to run all traffic through the Tor network when the Tor network is running? Chrome Version: 29.0.1547.76 Mac OS X Version: 10.8.5 Tor: 0.2.3....
15
votes
5answers
3k views

Aside from disabling Javascript in Firefox, how can I make Tor Browser Bundle more secure?

In a recent Tor security advisory, Roger Dingledine writes: Consider disabling JavaScript (click the blue "S" beside the green onion, and select "Forbid Scripts Globally"). Disabling ...
8
votes
4answers
1k views

How can I configure my network so that when Tor is running no other traffic can leave the box?

One of the fundamentals of Tor is that it can only really hide you if, when Tor is enabled and in use, you're using it exclusively. Agents wishing to de-anonymize you can examine requests to ...
2
votes
0answers
152 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 ...
4
votes
1answer
108 views

Why does my Tor Cloud bridge receive more traffic than it sends?

I am running a Tor Cloud EC2 instance. From the log files, it looks like it receives more traffic than it sends. What causes this?
6
votes
1answer
5k views

What threat model is Qubes OS TorVM most appropriate for?

Why would someone want to use Tor through a TorVM in Qubes, compared to other approaches? This page compares TorVM to Whonix, Tails, and Tor Browser but doesn't come to a firm conclusion as to which ...
4
votes
1answer
2k views

Which Tor Browser settings can leak my IP address when changed? [closed]

Are there Tor Browser settings that, when changed, can lead to my IP address being leaked?
11
votes
2answers
457 views

How can I prevent someone looking at my traffic patterns from learning that I use Tor?

Traffic pattern recognition can apparently be used to achieve a high degree of confidence of the origin of certain traffic, based on statistical analysis of exit node traffic. Is it possible to ...
28
votes
2answers
2k views

How strong is the anonymity of a hidden service compared to an average Tor client? How much easier is it to learn the Hidden Service's IP address?

Another way of putting this: How hard would it be to de-anonymize a hidden service? By "de-anonymize" I mean revealing the IP address of whatever server the hidden service is hosted on. Of course, ...
7
votes
1answer
1k views

How do I use Tor Browser with Qubes TorVM?

I want to run Tor Browser, without the bundled Tor, using Qubes TorVM. Let's assume I have already got Qubes OS running. The TorVM documentation states under Future Work: "Create Tor Browser packages ...
16
votes
2answers
2k views

How does Tor's threat model differ from i2p's threat model?

I2P is an alternative anonymity system, with a very different design - it focuses more on intra-I2P communication, rather than communication with the wider internet. Unlike Tor, every user of I2P is ...
11
votes
3answers
1k views

How can I test an application for proxy leaks?

If I have an application that supports a SOCKS proxy, and I point it at a running Tor instance, how can I be sure that all traffic the application sends (including DNS requests) are sent through the ...
9
votes
2answers
2k views

How are 'Pluggable Transport' bundles different from 'regular' Tor Browser Bundles?

The Tor Project releases both Tor Browser Bundles, and Pluggable Transport Tor Browser Bundles. How are these different? How should I decide which bundle to use?
39
votes
6answers
6k views

Can a hidden service be hosted by multiple instances of Tor?

Is it possible for multiple Tor clients, running on different machines or even networks, to publish the same Tor hidden service using the same private key to load balance requests between them?
13
votes
2answers
697 views

How should one explain Tor to a non-technical audience?

How should I explain the operation of Tor to a reasonably-intelligent but non-technical audience? I'm looking for a way to introduce folks to Tor in a way that helps them to understand its basic ...
23
votes
2answers
4k views

How do Hidden Services get .onion domains that aren't random?

Hidden Services usually have a long-ish string of alphanumeric characters for their .onion address, and this is generated by Tor as part of the Hidden Service Configuration. How did some Hidden ...
10
votes
1answer
3k 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 ...
52
votes
3answers
64k views

How does Tor route DNS requests?

Tor can only handle TCP connections, but DNS is a UDP protocol. How does Tor route DNS requests over its TCP based network? Why can the same approach not be used to route all UDP traffic over Tor?
8
votes
3answers
2k views

What implementations of Tor are there?

I have seen implementations such as the Tor Browser Bundle and a TorChat, based on the Tor network. I was wondering if there were any more of them out there?
1
vote
2answers
2k views

What impact does Tor's bootstrapping process have for attack models?

As I understand it, Tor nodes and clients bootstrap themselves by contacting over the regular internet some hard-coded addresses to get basic network information. What are the effects of this design ...
21
votes
1answer
935 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 ...
35
votes
2answers
4k views

Why does Tor Browser Bundle ship with JavaScript enabled?

Tor Browser Bundle ships with NoScript (which can disable JavaScript), but NoScript’s functionality is disabled. This means that by default in the Tor Browser Bundle, all JavaScript code is allowed to ...
34
votes
2answers
981 views

What universities / labs are researching Tor security?

Are there universities and labs that are unaffiliated with the Tor Project that are researching Tor and Onion Routing and contributing back to the Tor Project (be it in code, security audits, or just ...

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