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Questions tagged [connection]

The tag has no usage guidance.

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Bitcoin Core client on multiple computers

I have one computer with a full node bitcoin core. I would like to have bitcoin-qt installed on a different computer but I don't want to download the full blockchain again in the other computer. I ...
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0answers
33 views

Why does my public IP show a Bitcoin Node is running when it is set up over Tor?

I've set up my node to run exclusively over TOR. But when I check https://bitnodes.earn.com/ and a few other sites with my public IP to check if a bitcoin node is accepting incoming connections, it ...
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1answer
38 views

Is a peer connection maintained for the life of the node, or is it recreated on every request?

Lets assume we have 2 bitcoin nodes, A and B. A is already up, and B is now coming up. B lists A as a peer node and attempts to establish a connection. A accepts, a handshake is completed and they ...
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0answers
27 views

ignore connection from different coin networks

I work on bitcoin core code for a while to learn more. I noticed that there are incoming connections from other coins ( like litecoin ) network. I try different port for my node, but still there are ...
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1answer
64 views

Altcoin clone peer connections limited to 1

I cloned an altcoin and set up a network of 7 peers. One of the clients is connected to a pool and is mining the coin. All the other clients are connected to the pool one and are syncing and ...
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1answer
247 views

Error connecting to json rpc server

For testing purposes, I need to connect from a web page in my shared hosting account (on the public internet) to my json rpc server which is running on my laptop . So bitcoind is running on my laptop, ...
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1answer
65 views

Does Bitcoin limit the number of parallel connections from the same IP?

Is there a measure in place to prevent an adversary from connecting to a Bitcoin node many times in parallel, thus saturating its open connection slots?
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1answer
49 views

How does blockchain ensure that a closed loop in network is not formed?

Suppose there are 9 nodes and each node can connect to 8 other nodes. All these 9 nodes connect to the 8 others. Then when a new node comes where does it connect to in this case? All the current nodes ...
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0answers
68 views

How can I use raw litecoin protocol to connect to nodes?

I am trying to connect to litecoin nodes using raw protocol. I follow Ken Shirriff instructions from this article . My code works perfect with bitcoin, so I just replaced bitcoin nodes connection ...
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1answer
1k views

Port 8333 and Issues to have a connection

So, I have a website, and that website is going to use Bitcoins. Right now, I'm trying to connect the bitcoin core with the website. But I have a lot of issues with port 8333: This is my error: http:...
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1answer
282 views

Sybil attack countermeasure

In Bitcoin Wiki Weaknesses: Sybil attack they mention that: "Bitcoin makes these attacks more difficult by only making an outbound connection to one IP address per /16 (x.y.0.0)". Why would this ...
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0answers
60 views

Bitcoin core closes inbound connections every 10 minutes

I noticed that Bitcoin core will close incoming connections every 10 minutes. Wireshark captures [FIN, ACK] are received from the node. It looks like Bitcoin core is monitoring the connection time. ...
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0answers
129 views

Clarification of some getaddr() function inputs and outputs

In the Bitcoin system to discover new nodes, each node communicates with its peers by sending getaddr() to the peers. Based on the bitcoin implementation: //! the maximum percentage of nodes to ...
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1answer
59 views

Why connected node count have dropped since august 1st?

before 1st august i used to connect to 55+ nodes on my bitcoin-core, even if i kept the bitcoin-core running for 12 hours. but after 1st of august, the connected nodes count is not going above 15-23 ...
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1answer
71 views

Does bitcoin-core software/client connects with only same version number nodes?

i am trying to connect to maximum number of nodes. i noticed there are many receive version message in debug.log file so i have question, does the bitcoin-core connects to only those having either ...
2
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1answer
163 views

How does the network handle changing IPs?

From what I understand, when a node first comes online, it requests a list of known IPs from all of it's peers. I'm assuming that by doing that, it shares its own ip to all of the peers, which in turn ...
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1answer
362 views

Redirection to pool

dear friends. Due that my ISP blocks connection to pools i need to make a redirection via VPS that i has to a mining pool. I am very bad at networking and hardly can imagine how can i accomplish this. ...
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1answer
252 views

Are incoming connections required for mining?

I am setting up a RPi3 Mining node for fun. I know that it will have less than 8 connections that are outgoing. I know that if I was able to configure my network and router to allow incoming ...
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1answer
768 views

How does one node connect to other nodes

I am wondering how does one client connect to whole blockchain system if there is no centralized node which connecting other nodes together? So for example if I want to create my own decentralized ...
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0answers
390 views

How to install correctly this PiWallet Script in Ubuntu?

Good evening everyone.   I'm trying to set up the piWallet wallet (https://github.com/johnathanmartin/piWallet) on Linux.  I was able to successfully install the "Bitcoind Server" (which works very ...
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1answer
170 views

Does having a pruned node reduce its network score?

My node's network score (revealed by getnetworkinfo) is very low (<75). Most of the time there are no peers with incoming connections connected to the node. Is this because I'm running a pruned ...
2
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2answers
712 views

Is 8 the maximum number of incoming peer connections?

The reference here for running the bitcoin daemon does not really clarify what maxconnections mean. maxconnections= Maintain at most connections to peers (default: 125) Is this the max connection ...
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0answers
72 views

src/net.cpp | What does “nUnkBias” define/mean

net.cpp for example: // use an nUnkBias between 10 (no outgoing connections) and 90 (8 outgoing connections) CAddress addr = addrman.Select(10 + min(nOutbound,8)*10); What does this line ...
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1answer
2k views

Is there a connections limit on bitcoind?

I don't know if it is a lot or a few, but I see this number of connections: bitcoin-cli getnetworkinfo | grep connections "connections": 66, It does not seem to get over 70, is there an in-built ...
7
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1answer
298 views

List transactions *relayed* by my full node?

Running Bitcoin Core full node 24/7, with 70+ peer connections. Is there a bitcoin-cli command that will let me see the transactions that my full node has relayed from its SPV "clients"? FWIW, I can ...
4
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4answers
4k views

Allowing Incoming Connection on Bitcoin Core

Good Evening, I recently installed Bitcoin Core v0.12.1 on my home server (running Windows 7) and wanted to allow it to accept incoming connections and used the guide found here: https://bitcoin.org/...
2
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1answer
911 views

JSON-RPC Connection Problem!

I use bitcoind. And I have simple bitcoin wallet with simple login-register system. Error Code; Fatal error: Uncaught exception 'Exception' with message 'Incorrect response id (request id: 1, ...
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1answer
694 views

Can exist bitcoin network with all nodes behind NAT?

If I run bitcoin client for the first time its try to make TCP connection with saved list of IPs and port 8333 -other nodes. If this nodes are behind NAT with IP 192.168.0.XX and public IP from the ...
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1answer
3k views

What is the difference between inbound and outbound connections?

I have port 8333 open with 8 outbound and 2 inbound connections. Is my node transmitting and receiving transactions and blocks from both types of connections? Or does the "inbound" flag mean I am ...
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0answers
117 views

No connection to Bitcoin network from known Tor IP?

I have a very fast home Internet connection. I decided to share my bandwidth by setting up a Tor relay on an unused machine on my home network. Any connection I make from my home connection to an ...
3
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1answer
152 views

What is [::]:0 address in bitcoin debug.log?

I am trying to run and connect multiple nodes on a single machine, i.e different nodes using different ports. I am having trouble in connecting the nodes and making them talk to each other. While ...
1
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1answer
600 views

How to trigger port for Bitcoin client (e.g. 8333)

According to this it's possible to have incoming connections to Bitcoin client by forwarding port 8333 on the router. I was wondering if there is some specific port range Bitcoin Core uses for making ...
2
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1answer
4k views

Slush's Pool Worker Offline?

I am using GUI miner to mine on Slush's Pool. I have connected with my miner and everything is connected. I have even had a share accepted. But it says my worker is offline. Why is this?
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37 views

Bitcoin Peers Connection [duplicate]

I would like to clarify how a client connect with peers. I guess the client has a database which looks for possible peers and how long it connected to them. In case of the first connection, ...
1
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1answer
763 views

miner_proxy and minerd Settings

I've started a mining account of Wemineltc.com, and have decided to go down the track of CPU mining. I looked up the relative tutorials on how to do so, and I got some different results. I set the ...
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1answer
1k views

How to Enable Port Forwarding for Litecoin Mining?

I've just started Litecoin mining, and I've realized that my blockchain takes eons to download, even though its only less than 4GB. I've read several other posts on the same problem, but none of them ...
1
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1answer
352 views

What does this mean? RPC_CLIENT_NOT_CONNECTED = -9, // Bitcoin is not connected

I'm building a service which does some automatic Bitcoin transactions and balance checking. In the system I now created some logging, which told me that my bitcoind daemon (running on Ubuntu 14.04 ...
6
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4answers
7k views

Bitcoin is not connected in regtest mode

I am having trouble using regtest mode on Linux. Using pre-compiled version 0.9.2.1 for linux and starting regtest mode as instructed on bitcoin.org: <bitcoin-ver>-linux/bin/64>> ./...
6
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2answers
1k views

How to make bitcoind connect to more nodes?

Let's say I have a dedicated server just for my bitcoind and for better reliability and some security reasons I want it to be connected to a much bigger number of nodes than it is willing to do by ...
2
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0answers
765 views

Just installed bitcoin, but it won't connect

Total newbie at bitcoin; long time Linux user. kubuntu precise 64: My first attempt was just to download it (a slightly older version than the one from the ppa below), untar it and run the executable....
4
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1answer
830 views

Is Bitcoin a fully decentralized network, or how do clients connect to the network?

I read that Bitcoin is a fully decentralized network, but I don't understand how Bitcoin's client can connect to the network. I think that client must use some server for this action like other P2P ...
1
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1answer
658 views

p2pool inbound connections

I am trying to get inbound connections on my p2pool instance. I currently have 6 outbound connections and the pool is working fine, but I would like to have more connections (might help get a few less ...
6
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1answer
221 views

Hypothetical situation: the Internet gets split in two, what happens with Bitcoin?

Let's suppose, that at some time the Internet gets split in two, possibly because of wartime, or another possibilities (there was once a situation, when Egypt managed to split the internet in their ...
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0answers
822 views

Unable to connect to litecoin-qt server from more than 3-4 machines

I've created a litecoin-qt server with the following configuration: { "pools" : [ { "url" : "http://192.168.10.5:9332", "user" : "something", "...
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1answer
279 views

GUIminer, unnable to connect to pool

I'm getting a connection error, or just a "connecting..." message that doesn't stop. though the connection on my end seems to be fine. This is a printout of my console. If there is already a fix for ...
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2answers
1k views

My MultiBit is unable to connect

I have installed my MultiBit wallet and there is red "connecting" sign in left bottom corner. Wallet never connects. When I try it from another place (my friends house) everything is ok. It is ...
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1answer
683 views

What if a country 100% denominated in a cryptocurrency loses internet connectivity to the rest of the world?

Please assume a small island nation becomes 100% denominated in a cryptocurrency. Now please assume that for some reason the rest of the world manages to cut if off from the rest of the internet for ...
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0answers
1k views

Multibit: Connecting

I am not able to connect to my wallet using Multibit ("Connecting..." on the bottom left corner). Im using the TAILS OS (Multibit and my wallet are located in the "Persistent" folder). After reading ...
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3answers
35k views

How to resolve “no block source available”?

I've got some trouble using bitcoin-qt. It stays on: "No block source available... 242 weeks behind." And "Catching up ... Processed 0" etc... Map port using UPnP is activated, and proxy disabled ...
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1answer
2k views

Bitcoin Server won't connect, timeout error

I am trying to run/sync bitcoind -server for the first time on linux and it is not connecting end of Debug log gives me this... new Added 14 addresses from ::: 0 tried, 91 new 93 addresses found ...