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2022-02-11net: open p2p connections to nodes that listen on non-default portsVasil Dimov
By default, for mainnet, the p2p listening port is 8333. Bitcoin Core has a strong preference for only connecting to nodes that listen on that port. Remove that preference because connections over clearnet that involve port 8333 make it easy to detect, analyze, block or divert Bitcoin p2p traffic before the connection is even established (at TCP SYN time). For further justification see the OP of: https://github.com/bitcoin/bitcoin/pull/23306