| ▲ | kiitos 6 days ago | ||||||||||||||||||||||||||||||||||||||||
> In the iroh world, you dial another node by its NodeId, a 32-byte ed25519 public key. Unlike IP addresses, this ID is globally unique, and instead of being assigned, ok but my network stack doesn't speak nodeID, it speaks tcp/ip -- so something has to resolve your public keys to a host and port that I can actually connect to. this is roughly the same use case that DNS solves, except that domain names are generally human-compatible, and DNS servers are maintained by an enormous number of globally-distributed network engineers it seems like this system rolls its own public key string to actual IP address and port mapping/discovery system, and offers a default implementation based on dns which the authors own and operate, which is fine. but the authors kind of hand-wave that part of the system away, saying hey you don't need to use this infra, you can use your own, or do whatever you want! but like, for systems like this, discovery is basically the entire ball game and the only difficult problem that needs to be solved! if you ignore the details of node discovery and name mapping/resolution like this, then of course you can build any kind p2p network with content-addressable identifiers or whatever. it's so easy a cave man can do it, just look at ipfs | |||||||||||||||||||||||||||||||||||||||||
| ▲ | rklaehn 5 days ago | parent | next [-] | ||||||||||||||||||||||||||||||||||||||||
We do use DNS, but we also have an option for node discovery that uses pkarr.org, which is using the bittorrent mainline DHT and therefore is fully decentralised. And, as somebody else remarked, the ticket contains the direct IP addresses for the case where the two nodes are either in the same private subnet or publicly reachable. It also contains the relay URL of the listener, so as long as the listener remains in the same geographic region, dumbpipe won't have to use node discovery at all even if the listener ip changes or is behind a NAT. | |||||||||||||||||||||||||||||||||||||||||
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| ▲ | makeworld 5 days ago | parent | prev [-] | ||||||||||||||||||||||||||||||||||||||||
In practice, the "ticket" provided by dumbpipe contains your machine's IP and port information. So I believe two machines could connect without any need for discovery infra, in situations that use tickets. (And have UPnP enabled or something.) | |||||||||||||||||||||||||||||||||||||||||
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