bitcoind is the command-line interface for Bitcoin. It stands for "Bitcoin Daemon" where a daemon is any computer process which runs in the background ("service" in Windows terminology). bitcoind connects to the Bitcoin network and passes transactions, updates the block chain, etc.

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How secure is calling bitcoind JSON-RPC from same computer?

I am wondering if calling JSON-RPC from the computer it is running on is secure. I read How secure is calling bitcoind JSON-RPC? and understand why it is insecure to do so from a different computer. ...
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19 views

Does outbound port have to be open to make an Json-RPC call

lets say i am making a json-rpc call with the following connection : $connect = new jsonRPCClient('http://user:password@ipaddress:9332'); does outbound port 9332 of the sender need to be open as ...
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34 views

JSON-RPC call to bitcoind error, 403 failed to open stream

I am trying to make a json-call to a VPS server that hosts my wallet and it is failing with the following error message : Warning: fopen(http://user:pass@ip:port): failed to open stream: HTTP ...
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16 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 ...
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17 views

Bitcoind randomly stops downloading the blockchain

I have bitcoind running from a 2 GB CentOS 6 box in order to check balances of addresses. The problem is that it just randomly stops downloading the blockchain sometimes, and I have to use ./bitcoind ...
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22 views

How does the Clearing & Settlement process work in Open Transaction

From what I have read and understood. As open transaction platform uses coloured coins. The issuer of the coloured coin can associate it with a particular asset: like a ticket to a concert, or gold or ...
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54 views

Bitcoin payout based on real-life event

Just starting to learn bitcoin scripting. Can someone explain how to pay out based on some real-life event? I currently test from the command line with bitcoind -regtest
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2answers
27 views

getbalance not working

I am getting this error when I type getbalance: error: {"code":-1,"message":"std::bad_alloc"} Basically, I type getbalance and wait for about 2 minutes and this error appears finally. What does it ...
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1answer
26 views

Running Multiple Full Nodes on one Host

simple question. I would like to run several full nodes for Bitcoin, Litecoin, Darkcoin and so on, but don't they run on the same port (8333)? Will this just work or do I need to give them several ...
4
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106 views

What does “Safe mode: Warning: The network does not appear to fully agree! Some miners appear to be experiencing issues.” mean?

My bitcoind client that runs on testnet has started returning a lot of errors today. It has been doing so for a few of hours (as of 2014-08-29 9:50 UTC). When I call it via RPC, I get the following ...
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32 views

Maximum number of transactions in wallet.dat for Bitcoin Core

I know that a large number of key pairs in wallet.dat is not a concern. But is having too many transactions in wallet.dat an issue? Can Bitcoin Core start crashing after it reaches a certain number ...
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58 views

Are all private keys required to create a multisig bitcoin address

Do all 3 private keys in a 2-of-3 multisig wallet have to exist on the same device at some point in order to generate the bitcoin address? It would be ideal if the 3 private keys never existed on the ...
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24 views

Test in a box duplicating addresses how come?

I copied the whole directory for bitcoin data and then ran two instances one for the first directory and the other for the copied one, and then I generated a new address from the old instance go to ...
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1answer
41 views

Blockchain command line tools

I was under the assumption that the bitcoind server allowed you to query the blockchain and run commands like bitcoind getbalance on any address. I'm finding out that you may query addresses in your ...
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22 views

What is the limitation of the bitcoin core database in a windows machine?

I'm having problems with more than 10000 private keys , I wonder what is the limitation and what is the best practice of number of keys in bitcoin core wallet? is there a limit in database size ?
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2answers
32 views

Importing keys to a brand new wallet

After I imported keys to the brand new wallet I tried to test that it is imported properly so I ran salvagewallet command to verify my new wallet but got these errors! 2014-08-21 12:17:28 WARNING: ...
2
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1answer
52 views

Transactions within orphaned blocks

Scenario: You are running a bitcoind node and listening to the incoming blocks/transactions. You receive TX 1 which is put into your mempool. Block A is mined, and includes TX 1, which is ...
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19 views

Assertion Failed Error

Steps Install brand new Windows Server 2012 machine. I installed Bitcoin Qt I loaded my wallet.dat It ran ok for 8 hours. Than it gave an error : "Assertion Failed!" error. ...
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24 views

Bitcoind sync status at ~block 206286

I installed bitcoind on an ubunto server. If I execute bitcoind getinfo, I get the following output: ...
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1answer
27 views

IsCanonicalPubKey method in Bitcoin Core source

In my logs I see that I keep getting: ERROR: Non-canonical public key: compressed nor uncompressed This error is thrown from inside the method: bool IsCanonicalPubKey(const valtype ...
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17 views

Logical flow to check for receipt of a bitcoin payment [duplicate]

I'm experimenting with writing some Bitcoin software in Node.JS using the node-bitcoin lib to talk directly to my own bitcoind via JSON-RPC, and I am trying to work out the best-practice way to ...
0
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1answer
62 views

How to sign bitcoin transaction with 'bitcoind' and non-bitcoind-wallet private key?

My Target I want to create and sign bitcoin transactio using 'bitcoind' and 'bitcoin-cli' only. But the private key is unrelated to 'bitcoind' built-in wallet. That is, private / public key pair was ...
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1answer
61 views

Why doc says importing private keys is so dangerous?

There are a lot of applications when someone would like to import a private key. However in wiki documentation they say it is very dangerous: https://en.bitcoin.it/wiki/How_to_import_private_keys ...
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35 views

What is the “misbehaving” log message?

I was looking my bitcoind log and I saw this message: Misbehaving: 91.230.200.131:8333 (90 -> 100) BAN THRESHOLD EXCEEDED In which cases this message is shown and why? It just a curiosity.
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1answer
20 views

While using Open Transaction as a Decentralized Exchange, how can one guarantee sanctity of the trade carried out by the parties?

Lets assume Alice holds 100 shares of Twitter and wants to sell those shares on Open Transactions. Bob decides to purchase those shares. They decide the terms of the transaction, price etc and sign a ...
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31 views

Restore wallet.dat on windows 8

How do I use my wallet.dat on my windows 8 bitcoin qt? Someone posted this C:\Documents and Settings\YourUserName\Application data\Bitcoin (XP) C:\Users\YourUserName\Appdata\Roaming\Bitcoin (Vista ...
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56 views

Windows vs Linux for bitcoind (not mining)

What is the best O/S for bitcoind, which serves as a backbone for an online payments processor? Right now it is set up to run under Windows but I'm not sure if this is the best choice if they ...
3
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1answer
158 views

Is bitcoin-qt using bitcoind? or bitcoind is already built in the bitcoin-qt wallet?

When using bitcoin-qt wallet, all commands are executed externally with bitcoind? I am asking because I saw an altcoin wallet-QT (DMD) which comes as a single file without any daemon file, does it ...
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52 views

How can I rsync my bitcoin database?

I would like to use the bitcoind daemon but I don't want the high CPU footprint related to validating blocks every time new blocks come in. There is a better equipped computer that I can rsync with, ...
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2answers
46 views

Why could UpdateTip be taking so long?

It has been 10 days since I ran bitcoind. When I opened it yesterday, I waited for about 40 minutes during which I could do not much except for waiting because my computer became so slow (high CPU ...
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36 views

Gitian Build Issue - Windows

Got a little issue when compiling Windows QT using Gitian. BTW Im using a Ubuntu 12.04 64bit VPS. So I am using the instructions here : ...
3
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1answer
38 views

Building from Source on MAC OSX 10.9 Error

Hi i'm building Bitcoin from source and am having some problems. Curious if anyone would be able to help me. When I try to make I get: In file included from ./json/json_spirit_reader_template.h:9: ...
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1answer
31 views

Building Bitcoin from Source on MAC OSX 10.9

so I'm trying to get bitcoind running on my Mac and I cloned the source code from github. What I tried doing: brew install autoconf automake berkeley-db4 boost miniupnpc openssl pkg-config protobuf ...
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1answer
51 views

what IS Bitcoin's pourpse and what do they need me to do and why do they need me to do it and what is said thing for? [duplicate]

this program is advertiseing btcoins but not eplaining what they want to pay me to do and why dos it need to be done? its running algorithms but what is it doing that for? is it trying to protect ...
0
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1answer
33 views

Transfer wallet to new server

I have been running a bitcoin app in an old server. I need to move everything to a new server but my question is this: is there a way I can transfer my bitcoin wallet (bitcoin core) to the new server ...
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3answers
89 views

How To Lower The Disk Space Needed For Full Blockchain?

I'm looking to run bitcoind on a virtual machine. However the main nets Blockchain size is over 21GB, and growing. Is there a way to compress this down or lower the amount of disk-space needed for ...
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41 views

JSON-RPC “couldn't connect to server” via bitcoind CLI (curl works fine)

This is an odd one. I am running bitcoind 0.9.1 on Ubuntu 14.04 and have this behaviour: Doesn't work: $ bitcoind getinfo error: couldn't connect to server (timeout after 30s) Works fine: $ curl ...
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1answer
32 views

how do devs upgrade bitcoin core without affecting the live active network?

I've always wondered, how do devs developing on Bitcoin upgrade the system without affecting the live network? We typically see a site under maintenance when big companies revamp their site, but how ...
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1answer
36 views

how to config p2pool so that it can connect to bitcoind wiht HTTPS?

Now I have installed bitcoin with config rpcssl=1, and I have tested the connection with a java application. Everything seemed OK. Then I installed p2pool, and tried to connect to bitcoind (python2.7 ...
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1answer
114 views

Who controls the features added to the bitcoin network?

I read an article on cryptocoinsnews about sidechains and they said bitcoin can implement new features but any bugs would be dangerous to the whole bitcoin network. What I don't understand is who ...
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1answer
40 views

bitcoind synced more blocks than in the blockchain?

I just installed bitcoind on a fresh Ubuntu server and synced. However, it seemingly have synced more blocks than there are in the blockchain! $ bitcoind getblockcount 309905 $ curl ...
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26 views

How to do p2pool math

currency users! I running p2pool with multiple currencies and I would like to know how to calculate minimum hash rate needed per worker to solve share. Cause some miners not gathering predicted ...
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2answers
28 views

enable bitcoin SSL error

I want to enable SSL on windows.So I download a shining light openssl binary,and then I create server.pem and server.cert using the following commands: openssl genrsa -out server.pem 2048 openssl ...
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27 views

What is an account label, and how do I use getaccountaddress?

I'm having a hard time finding documentation on how getaccountaddress works. Am I supposed to pass it a bitcoin address, or a text label? If a label, where is this label stored? If someone could give ...
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0answers
15 views

Is there someway to determine the current network fee from the bitcoin network/daemon?

Is there some way to programmatically extract the current consensus of the transaction fee from the bitcoin network, either by using the daemon or through some other means?
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1answer
66 views

How can I convert a bitcoin public key to a bitcoin address?

How can I convert a bitcoin public key to a bitcoin address? Note: I am using PHP. Is there an existing bitcoin API or PHP-API to do that converting ?
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1answer
30 views

Create custom Transaction ID using Bitcoind raw transaction

I would like to know if it's possible for someone to create a raw transaction using bitcoind or bitcoinJ and predict the Transaction hash.How exactly is the transaction ID(hash) calculated ?
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59 views

403 error from localhost for any RPC call

got back from 3 days on the road. before I left I had no problem with RPC calls on my netbook running bitcoind. now I get 403 errors for everything: jcomeau@aspire:~$ bitcoind getbalance error: ...
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1answer
37 views

getrawtransaction doesn't work for every transaction with -txindex=1?

i put txindex=1 in bitcoin config and reindex blockchain after that when i call getrawtransaction for some transactions didn't exist in my wallet and work well like: [Working] getrawtransaction ...
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How can I define the change address of a transaction using createrawtransaction?

This question is almost the opposite of How to find the change / sender address given a txid? If I am making a transaction using createrawtransaction how can I define the change (sender) address?