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Tor Exit Nodes Mapped and Located

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21–30 of 63 posts

Re: Tor Exit Nodes Mapped and Located

#21
post #15
post #8

There's nothing new here. The exit nodes are public knowledge.

Sure, but public knowledge represented in a nice synthetic graphic way is more informative and more efficient at getting a point across.

It's already out of date though. You'd be better looking at the live list the author used.

http://torstatus.blutmagie.de/

Re: Tor Exit Nodes Mapped and Located

#22
post #2

15 exit nodes in the kyrgyz republic hospital area alone? Can that be correct?

IP geolocalisation sucks badly. For example OVH got only 1 DC (well to be precise one big room) in Paris. Kimsufi are hosted in their DC in Roubaix (north of France). They also got another one located in the east (near Strasbourg). You can also buy an IP located in somewhere else in Europe but linked to your server in Roubaix.

Re: Tor Exit Nodes Mapped and Located

#23
post #6

Any background on who "Conformal Systems" are and why they would operate exit nodes ? I'm not really familiar with who they are and what they do, but they seem to be the only one in the top-25 that isn't either a hosting company or a residential ISP. (apart from Formless Networking, but that one is a bit more well known) Not that it's not nice of them, but it seems a bit out of place.

Conformal is a startup run by a group of former OpenBSD developers including Marco Peereboom (marco@), Owain Ainsworth (oga@), and others. I've met most of them in person, and I've interacted with them on mailing lists for nearly a decade and a half. They are all good people in my book, and they're very talented. On many occasions, both Marco and Owain have helped me debug problems while adding support for new hardware. I can think of one time when Marco asked for both root and serial access to one of my boxes so he could debug a HBA. I gave him root on the system, root on the serial concentrator box, and root access to the network enabled power strip for hard reboots. Yes, I trust him.

Re: Tor Exit Nodes Mapped and Located

#24
post #11
post #6

Any background on who "Conformal Systems" are and why they would operate exit nodes ? I'm not really familiar with who they are and what they do, but they seem to be the only one in the top-25 that isn't either a hosting company or a residential ISP. (apart from Formless Networking, but that one is a bit more well known) Not that it's not nice of them, but it seems a bit out of place.

Government contractor. Feel free to guess what they're being paid to do...

Casting doubts and aspersions when you don't know anything and haven't bothered to read up on what they do is extremely unfair.

They do some very impressive cryptographic deduplication. Essentially it's a method to deduplicate already encrypted data reliably. If you don't realize how amazingly cool that is, you need to do some reading. It's a really tough problem, and it solves a major pain point for anyone with large volumes of encrypted data (i.e. governments).

EDIT: Links

https://www.conformal.com/

https://www.cyphertite.com/

Re: Tor Exit Nodes Mapped and Located

#26
post #24
post #11

Earlier quoted context omitted.

Government contractor. Feel free to guess what they're being paid to do...

Casting doubts and aspersions when you don't know anything and haven't bothered to read up on what they do is extremely unfair. They do some very impressive cryptographic deduplication. Essentially it's a method to deduplicate already encrypted data reliably. If you don't realize how amazingly cool that is, you need to do some reading. It's a really tough problem, and it solves a major pain point for anyone with larg…

"cryptographic deduplication"

How is that even possible? Surely a custom crypto scheme is needed?

Re: Tor Exit Nodes Mapped and Located

#29
post #12
post #7

Interesting, all the Berlin exit nodes are in a place that is a huge construction area on the Museum Island. Based on this I suppose they were only able to do city-level positioning (GeoIP or something similar).

It's worth noting that the statistics may be skewed because e.g. of US-based operators run their nodes at foreign ISPs due to fear of US law enforcement. Countries with more "liberal" policies probably have more nodes because of this, but it doesn't necessarily mean there are more operators based in those countries.

I'm curious: what are the specific laws that we should be concerned about?

(Obviously the US has many draconian laws regarding cyber-anything, but I'm curious what specific lines we cross with Tor Exit Node operation. Does it include something like ownership and responsibility of the data that passes through a node that we operate?)

Re: Tor Exit Nodes Mapped and Located

#30
post #7

Interesting, all the Berlin exit nodes are in a place that is a huge construction area on the Museum Island. Based on this I suppose they were only able to do city-level positioning (GeoIP or something similar).

The article clearly states that they're using GeoIP:

"Geolocation was performed against the IP addresses using the Free GeoIP API"

That quote even contained a hyperlink to Free GeoIP's website.

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