Hot answers tagged

6 votes
Accepted

No guard flag after 3rd month

Currently not every fast exit is also assigned the Guard flag. There was a change reported at TWN of July, 30th 2014: Once directory authorities have upgraded, they will “assign the Guard flag to ...
user avatar
  • 8,663
4 votes

What is the risk of guard relay and exit relay being one and the same?

The Tor spec says: 5.3. Creating circuits When creating a circuit through the network, the circuit creator (OP) performs the following steps: Choose an onion router as an exit ...
user avatar
  • 61
3 votes

Can Tor run on messaging applications on my phone, and how?

Your question is two fold. So : 1) "get into my traffic and find out my location" For this, you need tor. Install Orbot from f-droid.org client. 2) "see what I was saying" For this, you need ...
user avatar
  • 267
3 votes
Accepted

Running a Tor (non-exit) relay behind university firewall

Even if you got this to work, it wouldn't benefit the Tor network. Proxies tend to be slow and unreliable, so your relay would be as well. Also, a Tor relay wouldn't go unnoticed for very long. Few ...
user avatar
  • 2,989
3 votes

Using Tor, could I see the IP address of my entry node with "tracert"?

Tor is only used for tunneling TCP packets. By default traceroute sends UDP or ICMP (Internet Control Message Protocol) packets, ergo it can't be routed through Tor. However, it's also possible to ...
user avatar
  • 3,730
3 votes

Is my Tor service being middle manned hacked or sec?

Also all my circuits are now being built by zwiebelringrexlocus My circuits no longer seem to be popping around different connections and cities... whats happened? zwiebelringrexlocus is your (new?...
user avatar
  • 3,745
2 votes

What is the relationship between guard nodes and bridges?

Bridge, is designed to act as entry node (guard). There is no difference as far as number of hops with or without bridges when you connect to a given server. If there were three hops required to ...
user avatar
  • 3,236
2 votes
Accepted

Which one of the relay nodes need to get compromised for client de-anonymization?

First of all: As far as i know, if you do not compromise the Entry-Relay (Guard), you can not locate the client. So being said, the third case does not result in client de-anonymization. For the ...
user avatar
  • 134
2 votes

How a client maintains a list of guard nodes, from among hundreds of guard nodes, for creating a circuit?

You can find your EntryGuards in your data directory. If you are using the Tor Browser Bundle, you have the list in Data/Tor/state. In other cases there will be a .tor directory in your home directory ...
user avatar
  • 1,182
2 votes
Accepted

How to prevent a rogue Tor entry node?

You know that some rogue entry node isn't faking Tor circuits because your Tor client specifies the relays used in each circuit, and because the circuit-creation process requires that each relay ...
user avatar
  • 2,989
2 votes

Entry guards and multiple Tor clients

TL;DR The answer will depend on what you consider important, and what your Tor use-case is. (Similar to the hand-waving over threat models mentioned in another answer.) However, in general, the ...
user avatar
2 votes

Why does Tor Browser sometimes choose one entry guard (most of the time), but sometimes it choose two or three entry guards?

Proposal 236, which has been implemented by now, explains the behavior: When this proposal becomes effective, clients will switch to using a single guard node. That is, in its first startup, ...
user avatar
  • 1,342
2 votes
Accepted

Will the network know if a malicious guard keeps dropping connections?

Do Tor authority servers, or probing servers, or those clients who were dropped by the malicious guard have any mechanism to report it to the authority servers so that the malicious guard will be ...
user avatar
  • 10.8k
1 vote
Accepted

Is my proxy, which is a tor relay, my guard/entry-node?

If you relay has been upgraded to a guard node (this takes time to gain the trust of the network, enough bandwidth, speed, etc.) then it is possible that your relay could be your guard but it's not ...
user avatar
  • 2,141
1 vote

From a metadata perspective, what does an entry node know about its clients?

Entry nodes generally know your IP address, the IP address of the next hop and and they can see traffic patterns. Tor sends so called cells, they have all the same size and are padded if necessary. ...
user avatar
  • 1,342
1 vote
Accepted

Currently, how many entry guards does Tor choose and for how long are they maintained?

From what I can see from reading the code, it picks one guard if NumEntryGuards is not defined in the consensus. It is currently defined in the consensus but it is also set to one guard. That guard ...
user avatar
  • 10.8k
1 vote

Question about the assigned Guard node flag and whether if this flagged node can still be used as middle node

All relays are suitable for all positions in ciruits. How clients use them depends on their assigned flags, with the exception of exiting traffic which is defined by their chosen exit policies. So ...
user avatar
  • 10.8k
1 vote

Can Tor run on messaging applications on my phone, and how?

Both Linostar and user1552 have mentioned practical ways to help you to achieve what you are looking for. However, there is at least one addtional way that your location maybe computed. That method is ...
user avatar
  • 3,236
1 vote
Accepted

How Guard Discovery attack in Tor network works?

Since each hidden service keeps a list of guard nodes, revealing the guards gives the attacker the next point of attack. Since both hidden services and guard nodes are valid for a long time (more than ...
user avatar
  • 708
1 vote

What is the risk of Guard-Exit node in Tor compare to Guard and exit node separately?

i'm programming in python an application related to Tor with stem library. when i create new paths sometimes the guard node (entry) belongs to the same family (group of servers) as the exit node. ...
user avatar
  • 141
1 vote

If my network link is subject to frequent, short, outages (a gentle form of DoS attack?), can this help promote other nodes to guard before mine?

Here's my 2nd answer: If someone else is trying DoSing you over the Tor network there is a chance that this will be prevented from the guard relay. If not it could be an advantage for other relay ...
user avatar
1 vote

What does "Directory guard" design means in the following context and could somebody elaborate on this Tor FAQ quote?

A directory guard is a relay that your Tor client picked to download directory information from. Directory information is metadata about the Tor network - the list of relays (consensus), and ...
user avatar
  • 2,209
1 vote

Should I choose a new guard if the network is overloaded?

Yes with EntryNode $fingerprint Where fingeprints can be found like this https://metrics.torproject.org/rs.html#search/as:25513%20 (put your AS there). Or just delete Tor\state file.
user avatar

Only top scored, non community-wiki answers of a minimum length are eligible