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Questions tagged [eclipse-attack]

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8 votes
1 answer

What is a block-relay-only connection? What is it used for?

Modern versions of bitcoin core establish a fixed number of outbound connections: 8 outbound-full-relay connections and 2 block-relay-only connections. What is the purpose of block-relay-only ...
vnprc's user avatar
  • 405
13 votes
2 answers

Eclipse attack vs. Sybil attack

I came across this paper Eclipse Attacks on Bitcoin’s Peer-to-Peer Network ∗ that sounds very similar to the Sybil attack. Can someone point out the difference between both attacks.
user123's user avatar
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6 votes
3 answers

What is a Feeler Connection? When is it used?

The bitcoin client hard codes a limit of 8 outbound connections and 2 block-only connections. Your node will try to always maintain these 10 outbound connections with reliable peers as a defense ...
vnprc's user avatar
  • 405
2 votes
0 answers

Monitor domains used by DNS seeds in Bitcoin Core and Bitcoin Knots

Problem: DNS seeds and security Solution: I want to create a website which does the following: Check 'A' record for all domains used by 9 DNS seeds every 5 minutes Save all IP addresses in local ...
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