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Bitcoin was under attack! It’s the story the mainstream media won’t tell you!
Hosts Aaron van Wirdum and Sjors Provoost finally met in Utrecht again to record “Bitcoin, Explained.” In this episode, they discussed a recent attack on the Bitcoin network, where some nodes were flooding peers with fake IP addresses.
"Need juhuslikud inimesed, kes nendega ühenduse loosid, saadaksid 500 sõnumit ja igaüks neist 500 sõnumist sisaldaks 10 aadressi, mis peaksid esindama teisi võrgusõlmi," ütles Provoost. "Sõnumid olid tõelised, kuid sisu oli jama. Seega ühendaks sõlm teiega ja nad saadaksid teile hulga aadresse, kuid selgub, et need aadressid olid vaid hulk juhuslikke numbreid.
As previously discussed in episode 13, Bitcoin nodes are connect to peers on the network through IP addresses, which they learn from their existing peers. Nodes on the network essentially share the IP addresses of other nodes.
Recently, however, some Bitcoin nodes shared large amounts of IP addresses that weren’t associated with real Bitcoin nodes at all. While this attack did not do very much damage, it did waste resources from nodes on the network. On top of that, van Wirdum and Provoost explained, the attack could offer the attacker insight into Bitcoin’s network topology by analyzing how the fake IP addresses spread through the network.
Lõpuks arutasid van Wirdum ja Provoost, kuidas rünnak lahendati, piirates jagatud IP-aadresside arvu, mida mis tahes sõlm võimaldab oma kaaslastel vastu võtta. Lisaks mõtlesid nad, kuidas tasuta ja avatud lähtekoodiga tarkvaraarenduses ei ole probleemide lahendamine alati nii lihtne, kui võib tunduda.
Source: https://bitcoinmagazine.com/technical/discussing-the-fake-peer-attack-on-bitcoin
