Want to help moderate this community? We need more candidates in the ongoing election!

Questions tagged [relays]

Questions relating to relays, their maintenance, and operation.

Filter by
Sorted by
Tagged with
2
votes
1answer
2k views

How can I set up the fastest network for a Tor relay?

Say I set up a server in the cloud as a relay, how can I set it up so I get maximum speed out of the network? And how fast can a Tor-relay get with optimal bandwidth/response time?
4
votes
2answers
2k views

Tor Relay reports “Port Reachability Test Failed” errors

I have been a regular user of the Tor browser bundle for quite sometime. Lately, I switched to a faster connection and I have been wondering if I should be running my own Tor-relay. I took the plunge ...
2
votes
1answer
159 views

Atlas and Vidalia report different information about Tor relay

While Atlas reports Nickname Bandwidth Uptime IP lavizrap 102.4 KB/s 2h 7m 24.134.58.142 (https://atlas.torproject.org/#search/lavizrap) Vidalia Network Overview reports lavizrap ...
5
votes
2answers
281 views

Does those ExitPolicy make my relay a Tor non-exit relay?

I just set up a non-exit relay and it seems to work. I just want to make sure that I really have a non-exit relay. In the torrc file I set the option ExitPolicy to reject *:*. Does this make a non-...
2
votes
1answer
119 views

How is relay information obtained after running Tor?

Let's assume that the NSA can't attack all Tor nodes at once, and someone using Tor is anonymous this way, but how does Tor actually download these secure Tor nodes when we open it? I mean does Tor ...
7
votes
1answer
2k views

How to calculate optimal Relay Bandwidth & Throughput

Setting up a Tor relay on a VPS/cloud is a relatively straightforward process, which is great for people who enjoy that warm-fuzzy-i'm-making-a-difference feeling we get by contributing bandwidth to ...
2
votes
3answers
1k views

How to edit the torrc in “NT AUTHORITY\LocalService” account?

As the title say, how can I do it ? I has made a decision to uninstall Vidalia and use only tor.exe to run as a relay. I have tried to install Tor into the service so it is not going to disturb me. ...
4
votes
1answer
595 views

Run Firefox In Tor Browser Bundle using Tor Relay Bundle

Thanks to my friends detail explanations, now I'm more interested to run a Tor client and Tor relay all the time using the Vidalia Relay Bundle just to help other people out there. But my problem is, ...
3
votes
1answer
735 views

Traffic in port 9050 in a relay (denial of service attack?)

I've set up a Tor exit relay (0.2.4.17-rc, debian testing) in my VPS, and it's running well (about 20Gbs/day). But a lot of traffic (about 50%) is using port 9050 for incoming connections. It's ...
9
votes
1answer
141 views

Does Tor take node age into consideration when building a circuit?

I've seen this for a while, but in my experience Tor seems to select well stablished nodes (whose uptime is >60 days) but in the specifications this is not shown. It's just that the current list of ...
13
votes
2answers
937 views

Best way to set up a Tor lab?

What would be the best [and cheapest] way to set up a private Tor network for testing and experimentation? A rough size estimate is that it should consist of 12 or more onion-routers and should be ...
1
vote
1answer
125 views

Where is cookiepath of tor? [closed]

I am working on tools for change identity of tor every 3 minutes. But it require a cookie path of tor. I follow this one https://trac.torproject.org/projects/tor/ticket/4881 but didn't find its yet. ...
5
votes
1answer
549 views

Will hibernation cause my relay to lose the Guard flag?

My relay's outgoing traffic is limited, so I had to enable accounting. The limit hasn't been reached for a while now and recently my relay received the Guard flag. Will this flag be lost the next ...
7
votes
1answer
1k views

How can one move its relay to another server without losing anything?

Supposing one runs a server on some server and wants to move it to another. How can this be done without losing the flags (like stable, guard, named) and the progress to get a t-shirt, if certain ...
5
votes
3answers
289 views

How can I set up the most useful Tor node?

I've heard of Torservers and Noisetor. I've considered donating to them, but I want to avoid consolidating the Tor network in those two organizations, so I'd like to operate my own Tor node. (I also ...
9
votes
1answer
90 views

Would relay with temporary keys live the same great as with constant keys?

I'm on Debian-like OS. Directory /var/lib/tor/keys/ contains secret_id_key and secret_onion_key RSA keys. Would my relay work the same with 5Mb/s of bandwidth if I remove these keys each reboot, ...
4
votes
1answer
223 views

Where along the path is encryption used?

This question is born out of two questions that I saw coming up. Is the connection between my computer and the Tor network encrypted? How does Tor encrypt my traffic before it sends it to the server?...
13
votes
1answer
4k views

Why does Tor use three hops, instead of two?

With onion-routing a relay in a circuit only knows its predecessor and its successor, while a "normal" proxy is just one hop, so that it knows who connects to it and where it has to connect to. ...
3
votes
1answer
301 views

Why is the amount of incoming/outgoing traffic different on a non-exit relay?

I noticed something when letting a relay (non exit) run for a few days: The amount of traffic sent is larger than the amount received. This is confirmed by looking at the tor log and also by looking ...
3
votes
3answers
338 views

How are the exit and non-exit packets in the Tor relay system recognized?

Relay setting in Vidalia has two options for relaying: "for the Tor network" and "inside the Tor network". The options enable relaying either just inside the Tor network or additionally out of the Tor ...
5
votes
1answer
579 views

How does misconfigured time affect Tor?

Tor users and Tor relays across the world have different time zones. How does misconfigured time affects Tor operation either on client or server side? Is there a time skew margin in which Tor still ...
27
votes
2answers
11k views

What are good explanations for relay flags?

We received an Atlas patch that adds tooltips to relay flags, so that relay operators can better understand what these flags mean. The patch author used dir-spec.txt as their guide. I wonder if ...
6
votes
1answer
295 views

What, precisely, are the criteria for determining if a relay will be flagged as a guard?

The Tor FAQ's "What are Entry Guards?" entry does not describe the process by which a relay becomes a guard. The word "flag" is not mentioned anywhere in the FAQ index. Arma's "The lifecycle of a ...
3
votes
2answers
511 views

How is the weighted fractional uptime of a Tor relay calculated?

How is the weighted fractional uptime of a Tor relay calculated? Arma's "The lifecycle of a new relay" post mentions this statistic but does not describe it in detail: Directory authorities assign ...
3
votes
1answer
427 views

What is the lowest bandwidth rate limit required for a normal middle relay?

Is there any technical limit for scalability by lowest bandwidth rate limit or any curve x = number of nodes, y = minimal bandwidth limit? What settings are optimal for huge amount of small middle ...
6
votes
3answers
635 views

Why isn't there any such option - middle-relay behind NAT?

Why is it still required have two open ports, DirPort and OrPort, for a relay? Imagine such a situation. A Tor user with unlimited network traffic and with that kind great bandwidth stay behind a NAT ...
10
votes
3answers
361 views

Is it secure to set the contact information when building up a Tor relay?

When I am setting up a tor relay, one option is to determine the contact information as an email address. Is it secure considering information harvesting by NSA for instance or would be better to hide ...
10
votes
2answers
282 views

Would running Tor client and Tor relay simultaneously harm my anonymity?

If I run a Tor relay in a machine and at the same time I use the same instance as a Tor client, would that harm my anonymity ? Would it be better to use different Tor instances on the same machine? ...
21
votes
5answers
12k views

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 ...
7
votes
2answers
4k views

What Tor-friendly hosting providers allow anonymous accounts?

There are at least three levels to "Tor-friendly": allow clients; allow non-exit relays; allow exit relays. In any case, the provider must accept SSH connections via Tor. By "anonymous accounts", I ...
9
votes
1answer
264 views

Can you confirm that my IP address was a Tor relay a few months ago?

Let's assume I received a letter today that accuses me of downloading an illegal file, posting something inappropriate in a forum, or hacking into a system. And that happened a few months ago. But I ...
5
votes
1answer
4k views

Does the Tor Browser Bundle cache relay information?

When I restart the Tor Browser Bundle shortly after I've closed it I have the impression that relay information load faster. So I assume that the information about running relays is cached somehow. Is ...
13
votes
4answers
908 views

Are short-lived relays useful to the Tor network?

I have some dedicated servers which are not used at the moment. However this can change on a weekly basis. Would it be useful to the Tor network for me to configure them as relays during the times ...
15
votes
2answers
1k views

Does Tor insert random delays or perform packet re-ordering to make the discovery of the communication path harder?

If an attacker can observe the Tor user, and the website being visited, it is possible to correlate the traffic by looking at time and size distributions of the communication. Techniques such as ...
16
votes
4answers
9k views

Is it possible to make the Tor onion-routing path longer?

By default, Tor uses an onion-routing path with three hops: entry, relay (middle) and exit. Is it possible to configure (or, if necessary, recompile) Tor to use more than three hops? This would lessen ...
1
vote
2answers
150 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.
14
votes
1answer
941 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 ...
2
votes
0answers
128 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 ...
10
votes
1answer
2k 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 ...
21
votes
1answer
658 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 ...