Questions tagged [network]
This tag should be used for questions related to the Bitcoin network and communication between different nodes on the Internet.
397
questions
2
votes
1answer
38 views
Port Forwarding for Bitcoin Core in order to allow incoming connections?
There is a rather good explainer on https://bitcoin.org/en/full-node#port-forwarding on how to do port forwarding for bitcoin core in order to allow incoming connections so as to support the network.
...
0
votes
1answer
27 views
Incorrect Network
I was hoping someone could help with a transaction please.
I sent BTC to my binance account via my ledger. I think I used BTC segwit to send but sent it to the BTC address on binance- I was not aware ...
0
votes
1answer
18 views
Force Inbound Connections to IPV6 only
Is it possible to restrict all connections to an IPV6 address?
I've set
onlynet=ipv6
bind=::
But it seems that nodes are still attempting to connect to an IPV4 address (in addition to the IPV6 ...
0
votes
1answer
31 views
is wallet vulnerable when unlocked for transactions?
is wallet vulnerable when unlocked for transactions?.I recovered a wallet some time ago and all is good.passphrase key all looks good.But a question came to my mind about the moment we make a ...
0
votes
0answers
36 views
How does a Bitcoin node connect to more than 65536 other nodes?
I found on the internet that Bitcoin uses TCP to communicate with other nodes, connecting to them and sending messages. But a computer cannot bind more than 65536 sockets (because of TCP ports), so ...
2
votes
0answers
36 views
How to reliably check if your bitcoin onion node is reachable as advertised?
If getpeerinfo returns a good number of outbound onion peers but none show up as inbound:true, how do you check if your node is properly reachable as advertised?
Several guides and forum answers ...
0
votes
1answer
17 views
unrecognized output wallet when using Electrum to send bitcoin
help me understand this transaction - https://www.blockchain.com/ro/btc/tx/1318a3e54cff78fdd8f6b54e6fe5115072586091788c9bfa08ca82d83e4bc276 .
Never sent bitcoin from hardware / hot wallet before so I ...
1
vote
1answer
37 views
How does initial exchange of inventory work when both nodes have different chains?
When two nodes connect to each other and exchange getblocks messages but they have different blockchains will both nodes download each others blockchain to verify which has higher chainwork or will ...
0
votes
1answer
33 views
How does bitcoin find the block locator hashes in the leveldb database?
I am trying to understand how bitcoin core builds the list of block locator hashes needed for sendheaders and getheaders messages. I have looked on the wiki and I have seen that after the 10 most ...
1
vote
0answers
58 views
Score value of my node is not rising
I'm running Bitcoin Core 0.20.1 in Debian Buster.
I run the daemon behind Tor network.
My current settings are:
/etc/tor/torrc
SOCKSPort 9005
ControlPort 9501
HiddenServiceDir/var/lib/tor/bitcoin-...
1
vote
1answer
29 views
Bitcoin private network on Amazon EC2
I am looking to set up a private network of Bitcoin nodes over multiple machines (e.g, on multiple VMs on Amazon EC2) for experimentation. I want to be able to control how the different nodes are ...
1
vote
0answers
32 views
Was bitcoin peer to peer network affected because of the recent BGP hijack incident?
Can someone ELI5 BGP hijacking, impact on Bitcoin, countermeasures and if there were any issues because of the recent incident?
Related links: https://twitter.com/ProtonMail/status/1311013829514539011
...
0
votes
1answer
48 views
Did the FIBRE protocol reduce the occurrence of chain forks?
I've just learned that Fibre protocol is used for really fast block propagation. My understanding is that if blocks are propagated faster, miners can more quickly continue to work on (what seems to ...
0
votes
0answers
39 views
How to Post Transaction in Bitcoin Network?
I need help here as it has been almost a week since I've been trying to figure this out. Fyi, I can get my Python Script running using "Mainnet" for Bitcoin Transaction that able to execute ...
3
votes
1answer
62 views
How does a full node decide which outbound peers to have?
I understand that a full node can have up to 10 outbound connections (8 full relay peers and 2 block-relay-only peers). I wonder how my full node decides which nodes to connect to for outbound. What ...
1
vote
0answers
24 views
Dragonmint T1, cannot find on network anymore (AngryIP Scanner) + NO SDCARD SLOT
I was using Braiins OS for a while, but couldn't get the voltages to settle down no matter what I did, so I went to Braiins OS website and noticed they would no longer be supporting the DM-T1, so I ...
0
votes
0answers
37 views
Clarfication on “ network synchrounisation” in analyzing bitcoin protocol in a synchronous model
I am reading The Bitcoin Backbone Protocol:Analysis and Applications and i have no previous knowledge on different type of networks . And there is a term in paper " high network synchronicity &...
1
vote
1answer
27 views
getheaders request being ignored by peers [closed]
It seems my 'getheaders' request is being ignored by peers. I've followed the implementation: https://en.bitcoin.it/wiki/Protocol_documentation#getheaders without success.
If I change it to 'getblocks'...
1
vote
0answers
22 views
About polluting the peer table
Is there a well-known method to pollute a specific user's peer table?
Eclipse attack is not available anymore due to the patch after a paper was introduced.
Can you give some keywords?
Thank you!
1
vote
1answer
48 views
What is the Bitcoin network? [duplicate]
This is a beginners question related to bitcoin.
As bitcoin is a system of distributed bitcoin users, and a transaction is being sent to 'all' of them - well, what is that network? What IP adresses? ...
1
vote
1answer
43 views
How are we so sure that the bitcoin network is connected?
I am only beginning to understand the bitcoin's p2p network protocol but so far I know (and correct me if I am wrong) that a new node in the network attempts to connect to a "few" other nodes that ...
1
vote
2answers
36 views
Reversing network hashpower
I'm reading this article by Vitalik Buterin on Problems in Cryptocurrency and don't quite understand what this means:
Ideally, after some number of blocks (perhaps logarithmic in the total size of ...
1
vote
1answer
58 views
Number of bitcoind peers drops precipitously every 30 days or so
I run bitcoind headless on a linux box with maxconnections=256 and port 8333 open on the router. Using Bitcoin Node Manager I monitor node status occasionally. Peer count of course starts at 8 and ...
0
votes
1answer
51 views
Script_sig for coinbase transaction afbff1130b6fcbdceebbadfc48a842af1f03ee08a79e042b37fc467518b49a0f
I am currently developing a blockchain parser in Python, and it has been crashing in the file blk00006.dat for the coinbase transaction with the hash ...
0
votes
1answer
29 views
Does support HD wallets multi networks?
Due to bip 44 list
https://github.com/satoshilabs/slips/blob/master/slip-0044.md
HD wallets support multi coins.
does it mean HD wallets support multi networks? like omni for bitcoin, TRc20 for ...
0
votes
1answer
30 views
How do I ask other nodes for their stale blocks?
I want data on as many stale blocks as possible. Is there a way to ask peer nodes to run "getchaintips" and get their results?
Previously, I used Blockchain.info's API call for this, but it seems ...
0
votes
0answers
23 views
Why is my Bitcoin transaction not confirming today? [duplicate]
Please don't tell me that this also has something to do with this stupid Corona virus. First, it slashes the Bitcoin value in (less than) half. Then I can't order any groceries and have to sit here ...
0
votes
0answers
35 views
Find out dynamic IP address by querying bitcoin core
I'd like to use a dashboard page like Bitcoin Node Manager with Bitcoin Core. The summary page lists the IP address of the node, as obtained using bitcoin-cli getnetworkinfo. Bitcoin Core only seems ...
0
votes
1answer
40 views
Change port 8333 to other. (Running multiple docker instances)
My question is:
can I change port 8333 on the network connection to any other port (8334 f.e.) without making my node "blind" to the other peers in the network? Will it still sync/push transaction ...
0
votes
0answers
27 views
What exactly does the “score” field mean and how does work? when I execute the RPC command “getnetworkinfo”
I saw a similar question (this) but I think that the answer doesn't clarify me what the field meaning and how works (it's calculated?, how?).
0
votes
0answers
44 views
How to tell if my node is online (conflicting information)
I am really confused. I am attempting to set up a listening node. When I look at bitnodes.earn.com it shows my node as offline when searching by IP, but when I run getconnectioncount it returns a ...
1
vote
1answer
46 views
How to Construct a Ping Message
I am struggling greatly trying to figure out how to send a basic "PING" message, and receive back a "PONG" response.
import random
import hashlib
import socket
PEER_IP = "35.187.200.6"
PEER_PORT = ...
0
votes
0answers
24 views
How long does it take to crawl and map the bitcoin network?
There are several websites that have data on the number of nodes in the network. For instance coin.dance. About how long does it take to map the entire bitcoin network?
4
votes
1answer
57 views
Discovering Bitcoin network topology
For a research I am doing I would love to have a graph with the network of reachable Bitcoin nodes. Active reachable nodes can be extracted by using getaddr messages (e.g. bitnodes project). However ...
0
votes
1answer
30 views
What would the effect of a very long bear market be on the Bitcoin economy?
I don't mean to be a doomsday prophet or spread FUD, but I need to know if Bitcoin (or any PoW coin) investors should be concerned about the following scenario:
Assume Bitcoin goes in a very long ...
3
votes
1answer
2k views
Bitcoin protocol and Wireshark
I captured bitcoin protocol communication in real-time and it is present in fig1 and fig2.
Fig1
In red box, there are many types of command.
First Question:
How can Wireshark detect bitcoin ...
0
votes
0answers
56 views
Types of onion address
I'm running a bitcoin core full node with Tor and I've configured a hidden service for that.
The point is: bitcoin core log shows me an onion address which is very smaller than the one I found in /var/...
1
vote
1answer
103 views
difference between inbound and outbound connection
I'm running a bitcoin full node (bitcoin core) via Tor.
I noticed I have only outbound connections (using maxconnections=16 in the conf file), but not even an inbound one.
So which is exactly the ...
4
votes
3answers
246 views
Can we shutdown the Bitcoin blockchain?
I maybe wrong but what I think is the blockchain ledger exists as long as there are active nodes in the network. So can the Bitcoin blockchain be shutdown by shutting down power supply across the ...
6
votes
1answer
194 views
What is the oldest Bitcoin Core Client that can in theory sync to the chain tip?
I've seen this question regarding the original Satoshi Client being able to sync to the chain tip. The main issues why it doesn't work were:
Change in protocol messages
IRC Node discovery is now ...
2
votes
1answer
25 views
Double Spend Behavior on First Network Propagation
Supposing there is a double spend, call the transactions T1 and T2. If someone propagated both transactions within a short space of time to the network, of course only one of them can make it into the ...
0
votes
0answers
58 views
No addresses returned by getnodeaddresses RPC call
The issue
I am attempting to use the getnodeaddresses RPC call to return all addresses known by a node in a docker network. I'm using the regtest environment. The RPC call returns an empty array ...
1
vote
1answer
20 views
Bitcoin network resources requirement
Supposing we are alone, could it be possible to run the whole bitcoin network and full capacity of it (maximum transaction per second by different peer) on a low end computer, and how can someone ...
3
votes
1answer
136 views
How does the Bitcoin p2p network work? Does it need port forwarding?
But does every peer node in the bitcoin p2p network need to have ports forwarded in order to participate? Otherwise, how does the p2p network work in the Bitcoin network?
I heard that there are some ...
1
vote
0answers
32 views
Why not connect to all (huge amount of) nodes?
If you mine, a good network propagation time is important in case of mining-forks. I read that bitcoin only connects to 8 nodes. I would connect to many nodes as I can support to minimize my block ...
2
votes
1answer
109 views
Networking & Lightning Network
So I have a question regarding network connectivity within LN nodes.
Scenario #1:
I have public lightning network node. it has real public IP address (let's say 123.123.123.123), which one is ...
0
votes
1answer
388 views
Can't connect to Bitcoin RPC on DigitalOcean server
I am running bitcoind on a DigitalOcean droplet with public IP address e.g. 1.1.1.1.
I would like to connect to it via RPC from another DigitalOcean droplet with public IP address e.g. 2.2.2.2.
Both ...
0
votes
1answer
46 views
A question about transaction broadcasting and block creation
Let's say we have transaction X and transaction Y. The timestamp of X is chronologically earlier than that of Y. X's spender broadcasts X to the network and the same goes for Y's spender.
Let's say ...
1
vote
1answer
25 views
A question about Proof-of-Work(PoW)
I will describe my question using an example.
Let's say the network is working on adding block #100 to the blockchain. An attacker recreates block #99 with a combination of transactions that are "...
1
vote
0answers
33 views
Does finding neighbors in Bitcoin consider locality and hop count?
When the list of neighbors is being gathered by a new nodes in the network, does it consider the distance between the nodes to find closest possible, or it just takes some random nodes? In other words,...
