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1500 questions
28
votes
2 answers
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, this wouldn't necessarily mean revealing the…
user48
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28
votes
3 answers
How does a Tor client pick Tor nodes for circuit creation?
A Tor client initially contacts Directory Authorities to fetch the consensus (i.e. a file containing all relays of the Tor network at that time with details such as IP address, exit policy, public key etc.) As soon as a Tor client gathers…
alaf
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27
votes
2 answers
How to check if Tor is working and debug the problem on CLI?
Tor service is not working
I have installed Tor on a command-line only environment (without the browser), so I can't type in check.torproject.org with a browser. Tor is used by a script to request data from clearnet.
I am using a RHEL-compatible…
David Refoua
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26
votes
1 answer
.onion Domains DNS lookup
How does Tor resolve .onion Domains? Are there also some central DNS servers in the Tor network that store these records? Is there a chance that two hidden services generate the same domain name?
binfalse
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25
votes
5 answers
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 thttpd might be preferable to Apache and its…
Neil Neyman
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25
votes
6 answers
How to run Tor on Raspbian on the Raspberry Pi?
The Debian/Ubuntu packages from deb.torproject.org[docs] do not work on the Raspberry Pi when running Raspbian:
$ tor --version
Illegal instruction
Why, and how can I still run Tor versions newer than what ships with Raspbian?
weasel - Peter Palfrader
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25
votes
2 answers
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 Services get 'memorable' .onion addresses such as
Tor…
Megan Walker
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23
votes
2 answers
How can I prevent my different activities carried out over Tor being linked?
I know there are potential risks of carrying out multiple activities over Tor at the same time, when I don't want them to be linked.
For example, I might browse one website giving one pseudonym, then switch to another where I want to use a different…
Steven Murdoch
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23
votes
3 answers
How to prevent the Mevade botnet from abusing the Tor network?
If the botnet admin decides to transmit data, maybe he alone could bring down the whole Tor network. The NTor circuit-level handshake in Tor 0.2.4 solved some problems, but the botnet is still affecting the network.
Are there any bolder options…
Juan Lopez
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22
votes
3 answers
Why can't I open most of the onion sites?
I am rather new to Tor and not sure if it is something I missed, or that I have done wrong. Almost every single onion site (90% of them) I try to access shows the error message "Unable to connect".
I tried using the Tor check, and it says that I'm…
Lyla
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22
votes
8 answers
How may I run multiple Tor relay instances in a single Linux machine?
Suppose I have a Linux machine (for example Debian) with more than one public IPs, sufficient bandwidth, memory and CPU resources.
How may I run more than one Tor relay instance in that single machine? Should there be different users that start…
alaf
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22
votes
1 answer
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 of its location being obscured)?
What effect would…
Megan Walker
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22
votes
1 answer
How to store passwords in Tor Browser?
The Remember passwords option in Tor Browser is greyed out.
In past versions of the Tor Browser Bundle there was a setting in Tor Button, but in v3.5 it's no longer there. How can I store passwords in Tor Browser?
user1055
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21
votes
3 answers
Where I can find, export or download the biggest list of all .onion addresses?
Where or how I can find, export or download the biggest list of all hidden service .onion addresses?
kenorb
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21
votes
1 answer
Is it possible to look up the public key for a .onion-address?
I know .onion addresses are a (partial) hash of a descriptor which contains a public RSA key, so I was wondering: it is possible to see the public key that is found when connecting to a .onion hidden service using Tor?
While in general it is a…
xnyhps
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