Connecting bitcoin-qt to bitcoind on local network

How to install any QT-Wallet on the Raspberry Pi / Pi3B+

Hello and welcome to my first tutorial. Today I will show you how to install almost any QT-wallet on the RaspberryPi. I hope this tutorial will help you. I use the BankSocietyCoin in this tutorial, you can change it also to your fav. Coin.

Install Raspbian , *Buster produced a lot of failures on my system while compiling Wallets*
(my version: https://downloads.raspberrypi.org/raspbian/images/raspbian-2018-03-14/ )
Run the following commands:

Change Swap Size of the Rasp:

sudo nano /etc/dphys-swapfile
change to CONF_SWAPSIZE=2048
press: ctrl o Enter and ctrl x
enable the swap file with its new size:
sudo dphys-swapfile setup
sudo dphys-swapfile swapon
----------
Install Required Dependencies:

apt-get update
sudo apt-get install git build-essential libtool autotools-dev autoconf pkg-config libssl-dev libcrypto++-dev libevent-dev libminiupnpc-dev libgmp-dev libboost-all-dev devscripts libdb++-dev libsodium-dev
and
sudo apt-get install libqt5gui5 libqt5core5a libqt5dbus5 qttools5-dev qttools5-dev-tools libprotobuf-dev protobuf-compiler libcrypto++-dev libminiupnpc-dev qt5-default
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Install bitcoin PPA files for the compiling process:

cd /etc/apt/sources.list.d/
sudo nano bitcoin.list
paste to following line:
deb-src http://ppa.launchpad.net/bitcoin/bitcoin/ubuntu artful main
press: ctrl o Enter and ctrl x
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv C70EF1F0305A1ADB9986DBD8D46F45428842CE5E
sudo apt-get update
----------
Install working libssl:

cd && sudo apt-get remove libssl-dev
sudo nano /etc/apt/sources.list
change stretch to jessie
press: ctrl o Enter and ctrl x
sudo apt-get update
sudo apt-get install libssl-dev
sudo apt-mark hold libssl-dev
sudo apt-mark hold libssl1.0.0
sudo nano /etc/apt/sources.list
Change jessie" back to stretch
press: ctrl o Enter and ctrl x
sudo apt-get update
----------

Compile and Install BerkeleyDB 4.8.30 :

wget http://download.oracle.com/berkeley-db/db-4.8.30.NC.tar.gz
sudo tar -xzvf db-4.8.30.NC.tar.gz
cd db-4.8.30.NC/build_unix
sudo ../dist/configure --enable-cxx
sudo make
sudo make install
export CPATH="/uslocal/BerkeleyDB.4.8/include"
export LIBRARY_PATH="/uslocal/BerkeleyDB.4.8/lib"
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The wallet:

(my way) mkdir wallets , cd wallets
git clone https://github.com/RGPickles/BankSocietyCoin
cd BankSocietyCoin
chmod 755 src/leveldb/build_detect_platform
chmod 755 src/secp256k1/autogen.sh
cd src/
make -f makefile.unix
./societyd
* for qt wallet*
cd ..
qmake
make
edit society.conf in .society
(rpcuser=SomeCoolRandomUsername
rpcpassword=SOMETHINawesomeYOUdontHaveToRemember
rpcconnect=127.0.0.1
save.
./society-qt
----------

Have fun!
for a Beer - Donations ;)
SOCI - Si6V7EwnJqzmFiNGHSbXrtWUXKH6F4EFm3
BTC - 1HpGF4wMzztpJ4KT4o2ySFvnLJ4gCoYaV5
LTC - LS22MgY9G4KbaKhkR5dFi995MbcQhuyDXW
ETH - 0x6b5EdC3e58Fd84a40aa942964690adA91C398075
TRX - TKBpktt5QQ9WV57QjonQrGr1vmKLCVQBL6

13.07.2019 DennisHilk




**********
if error (makefile.unix:200: obj/rpcclient.o] appears)
[This first step is necessary because you will get linking errors if you don't remove the old Boost library]
sudo apt remove --purge --auto-remove libboost-dev libboost-thread-dev libboost-system-dev libboost-atomic-dev libboost-regex-dev libboost-chrono-dev
mkdir boost
cd boost
wget https://dl.bintray.com/boostorg/release/1.64.0/source/boost_1_64_0.tar.gz
tar xfz boost_1_64_0.tar.gz (can take rly long, dont worry)
cd boost_1_64_0/
./bootstrap.sh
./b2 stage threading=multi link=static --with-thread --with-system
sudo ./b2 install threading=multi link=static --with-thread --with-system
cd ../../
nano .bash_profile
export LIBS="-L/home/YOURS/boost/boost_1_64_0/stage/lib"
export CPPFLAGS="-I/home/YOURS/boost/boost_1_64_0"
cd society root
make clean
cd src
sudo make -f makefile.unix

(if bignum error)
sudo apt-get install libgmp-dev
or delete opensll and reinstall as above.
submitted by dennishilk to u/dennishilk [link] [comments]

Blackcoin Wallet Passphrase mistyped - Bruteforce

Summary: I executed a (limited!) brute force attack on a wallet where I mistyped the passphrase. Attached is a short tutorial how to make it.
Long story: some months ago I created a wallet. I keyed in my passphrase with 70 characters long (yes it is long), wrote it down, bought Blackcoin. Next day I tried to open it, but it seems to be that I mistyped (two times) the passphrase. So I started to make a long research how to "hack" it. I finally figured that I can make a limited brute force attack by using RPC. So, I got familiar with curl (RPC tool) and created a batch-script with Excel where I just changed one character per try. I ended with 5200 tries.
And boom: It worked! It was try number 2814 which worked. So, I really just mistyped one single character. The wallet has been opened once again. So now I have access to my Blackcoins.
-----TUTORIAL-----
I was using the old blackcoin-qt (on windows) because the wallet was created with this one. I do not know if it is compatible with lore. Situation is that you remember (more or less) the passphrase, but you think that you just mistyped one character. Idea is to make a limited brute force attack on the wallet - so, to test different passphrase which are similar to your remembered one.
we will create a script (batch) which calls the blackcoin-qt (as server) via RPC and try to open the wallet with different passphrases.
What did not work
I found some hints concerning hashcat and bitcoin2john (also for Blackcoin), which enable you to retrieve the seed out of the wallet and to make a bruteforce on the hash of the seed (with hashcat). But it did not work, because the blackcoin wallet seems to be different than the bitcoin wallet.
There is also no direct commandline parameter for opening the wallet with passphrase. So I started to work with RPC.
Using the blackcoin-qt as a server
Switch into C:\Users\myusername\AppData\Roaming\BlackCoin and place a blackcoin.conf file here. This should contain (at least) these entries:

server=1 tells BlackCoin to accept JSON-RPC commands.

server=1

You must set rpcuser and rpcpassword to secure the JSON-RPC api

rpcuser=user
rpcpassword=password

Listen for RPC connections on this TCP port:

rpcport=15715

You can use BlackCoin or blackcoind to send commands to Bitcoin/bitcoindBlackCoin/blackcoind

running on another host using this option:

rpcconnect=127.0.0.1
...Start blackcoin from the commandline with the server parameter like this: blackcoin-qt -server=1
Test RPC Calls with curl
Download curl (an RPC tool for the commandline): https://curl.haxx.se/
For this test you should use a new generated wallet with a password you know.
First test with the getinfo method, which shows you if the connection to the Blackcoin Daemon is established: curl --header "Content-Type: application/json" --data-binary "{\"jsonrpc\":\"1.0\",\"id\":\"curltest\",\"method\":\"getinfo\",\"params\":[]}" http://user:[email protected]:15715/
If you do not get any connection, you can also use netstat -a to see if your machine is listening on the port 15715.
Finally, the method to open the wallet via RPC (uses two parameters) curl --header "Content-Type: application/json" --data-binary "{\"jsonrpc\":\"1.0\",\"id\":\"curltest\",\"method\":\"walletpassphrase\",\"params\":[\"mySecretWalletPassword\",50]}" http://user:[email protected]:15715/
Note the output you get, when you use the correct password: {"result":null,"error":null,"id":"curltest"}
Later we want to search in a logfile for the expression "error":null in order to identify the correct password
Generating the Bruteforce Script
I used an Excel file to create a script. On the basis of the so-far-remembered-passphrase and a selection of possible characters this scripts changes for each row only one character. I ended up with roughly 5000 rows, but I used a very long passphrase (70 characters). Using the Excel output you can create a script out of it.
If you are interested in the Excel file you can contact me on bitcointalk - my username is "Euro1000"
Execution
Start the script (batch) and pipe the output into a log: myScript.bat > log.txt
When the batch finished search for the expression "error":null If you found it, you found the password in the line above the expression.
Limitations
I used the old blackcoin-qt (not Lore), because the wallet has been generated with blackcoin-qt. Lore should use the same RPC implementation, but it is untested if this tutorial also works with Lore.
I used this on Windows I do not know if this will also work on Linux.
Some special characters are a little bit tricky in curl, because some of them like "<" let curl crashes. Perhaps you can escape these special characters somehow.
submitted by coindestroyer to blackcoin [link] [comments]

Are there any Bitcoin clients that can RPC connect to a Bitcoind server?

I'm running the original Bitcoin wallet on my server, and I wanted a graphical client that I can run on my desktop that can rpc connect to my server, but I can't seem to find any.
The Bitcoin-qt doesn't support rpcconnect (https://github.com/bitcoin/bitcoin/pull/2513 which is very strange! it should support it :().
Does anyone know of any client that does support it?
submitted by intahnetmonster to BitcoinBeginners [link] [comments]

How to Mine Bitcoin Using Your Windows PC Programming Bitcoin-qt using the RPC api (1 of 6) 6. bitcoin-qt How to run Bitcoin-qt as a server with a configuration file (3 of 6) How to prune the blockchain in Bitcoin-Qt

qt: don't show rpcconnect command line option in help sipa merged commit dce6f42 into bitcoin : master Apr 12, 2013 laudney pushed a commit to reddcoin-project/reddcoin that referenced this pull request Mar 19, 2014 bitcoin-qt -proxy=127.0.0.1:9050 -onlynet=tor To use Bitcoin with one specific Tor node, run bitcoin-qt -proxy=127.0.0.1:9050 -connect=abcde.onion , where abcde.onion needs to be substituted with one of the Tor nodes below. These parameters can be added to bitcoin.conf to make them permanent. Bitcoin-Qt version 0.8.0 are now available from: /spendfrom is a python-language command-line utility that demonstrates how to use the “raw transactions” JSON-RPC api to send coins received from particular addresses (also known as “coin control”). to connect to specific peers without restarting. importprivkey now takes an Connect only to the specified node(s); -noconnect or -connect=0 alone to disable automatic connections # # server=1 tells Bitcoin-Qt and bitcoind to accept JSON-RPC commands #server=0 # Bind to given address to listen for JSON-RPC connections. Use [host]:port notation for IPv6. # This option can be specified multiple times (default: bind to Bitcoin Core is a community-driven free software project, released under the MIT license. Verify release signatures Download torrent Source code Show version history. Bitcoin Core Release Signing Keys v0.8.6 - 0.9.2.1 v0.9.3 - 0.10.2 v0.11.0+ Or choose your operating system. Windows exe - zip.

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