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Jul 10, 2018 at 20:58 comment added Ava Chow The banning function in Bitcoin Core is less of a punishment or more of a protective measure against legitimate nodes that are functioning. If an attacker really wanted to attack you, it is trivial for them to connect to you through many different IP addresses and circumvent the ban system.
Jul 10, 2018 at 11:59 comment added bitaps.com To sync fully validating Ethereum node you just need SSD disk. The bottleneck is disk io, not computation and CPU. About denial service attack, transactions with invalid signature will not be relayed to other nodes, so this attack on a single node or group of nodes. Single node easily able block attacker nodes who sent invalid transactions. At this moment in bitcoin core implemented algorithm with a penalty and blocking misbehavior nodes.
Jul 9, 2018 at 22:45 history answered Ava Chow CC BY-SA 4.0