Expert advice needed on DHT

Ghost Protocol

Ghost Protocol

Member
Joined
Oct 18, 2020
Posts
11
So I asked this question at serverfault.com and a bunch of morons down voted it for what I don't know. It's a straight up, honest question and I have done my reading on DHT at Wikipedia, but my suspicion lies in the fact the VPN provider may be leaking IP addresses via DHT especially since Shodan reports a lot of these IPs belonging to residential users.

Here is my question:




I'm trying to understand something I found at Shodan concerning an IP address I use with a paid for VPN. If you go here you will see a port to this VPN IP that is 1451 that says DHT. Now correct me if I'm wrong, but isn't DHT Distributed Hash Table referring to a P2P connection? If so, is this port showing people's real IPs through this VPN at Shodan? If this is true it would be a major flaw in using a VPN to stay hidden you'd think. Or is this DHT port something else I'm not aware of?
Also, the IPs shown in the DHT port are mostly home ISPs. I also saw Netflix streaming services. If you check your VPN IP at Shodan, do you see the same thing with a DHT port?
Thanks in advance.




Anyone know the answer or can direct me somewhere where I can get an answer?
 
No, that article doesn't help as you suggested, and in fact I already know everything mentioned in there. I think they are trying to sell a VPN because the word (acronym) is mentioned at least 20 times and right there on that page they advertise one and then some JS kicks off an in your face Ad on a VPN service (which today is a major marketing gimmick unless you know what you are doing).

I'm not trying to say Shodan is bad per say about why my VPN server address has a port show up there that seems to be related to DHT. I'm just trying to figure out WHY it's there and exactly what it is as it seems like the server is leaking users who use DHT like in a P2P App. Now if you place your cursor over the down vote in Severfault it reads some crap like I didn't do my research. Though, that could be a website default message for down votes.

Off topic, but as of this post it's a nice 70 at your location and right here I'm freezing at 35. LOL! I want to move to Florida myself or maybe even the keys.
 
Another thing. Thing mention use a VPN but fail to make a connection with that and how a open port for a VPN may show up on the radar at Shodan if you roll your own. LOL Though, without creating a long post, my VPN in the router doesn't show up at Shodan. I tried Nmap as well and with a magic string (may be the wrong one) and chimed in at the OpenVPN help forum about this only to be told that "OpenVPN was smart." What ever that means.
 
Ghost Protocol said:
Off topic, but as of this post it's a nice 70 at your location and right here I'm freezing at 35. LOL! I want to move to Florida myself or maybe even the keys.
Click to expand...

I guarantee you, we are ready for cooler weather. That being said, we do not have to deal with the ice and snow. The occasional ice storm here once every 20 years or so, shuts us down for at least a day. We have no infrastructure to deal with it. I've seen 2 since 1989.

In the Keys on the other hand you only have 2 choices in weather, beautiful and the occasional hurricane.

Back to the topic: I have almost zero expertise in the networking area aside from simple protocol. It took me 4-5 days to figure out RDP with Active Directory and Domains on Win Server 2019. When it comes to VPN's I'm uninitiated. Sorry I could not be more help. Someone else will chime in soon. Again, I'm glad you joined us! :-)
 
So I contacted my VPN provider again and still no response to this madness. Googling 'VPN & DHT' yields some interesting results. The Reddit article is full of noobs. LOL "Never had issues." Of course not...
 

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