The 6 best cryptocurrency mining tools for Linux

[ANN][ANDROID MINING][AIRDROP] NewEnglandcoin: Scrypt RandomSpike

New England
New England 6 States Songs: https://www.reddit.com/newengland/comments/er8wxd/new_england_6_states_songs/
NewEnglandcoin
Symbol: NENG
NewEnglandcoin is a clone of Bitcoin using scrypt as a proof-of-work algorithm with enhanced features to protect against 51% attack and decentralize on mining to allow diversified mining rigs across CPUs, GPUs, ASICs and Android phones.
Mining Algorithm: Scrypt with RandomSpike. RandomSpike is 3rd generation of Dynamic Difficulty (DynDiff) algorithm on top of scrypt.
1 minute block targets base difficulty reset: every 1440 blocks subsidy halves in 2.1m blocks (~ 2 to 4 years) 84,000,000,000 total maximum NENG 20000 NENG per block Pre-mine: 1% - reserved for dev fund ICO: None RPCPort: 6376 Port: 6377
NewEnglandcoin has dogecoin like supply at 84 billion maximum NENG. This huge supply insures that NENG is suitable for retail transactions and daily use. The inflation schedule of NengEnglandcoin is actually identical to that of Litecoin. Bitcoin and Litecoin are already proven to be great long term store of value. The Litecoin-like NENG inflation schedule will make NewEnglandcoin ideal for long term investment appreciation as the supply is limited and capped at a fixed number
Bitcoin Fork - Suitable for Home Hobbyists
NewEnglandcoin core wallet continues to maintain version tag of "Satoshi v0.8.7.5" because NewEnglandcoin is very much an exact clone of bitcoin plus some mining feature changes with DynDiff algorithm. NewEnglandcoin is very suitable as lite version of bitcoin for educational purpose on desktop mining, full node running and bitcoin programming using bitcoin-json APIs.
The NewEnglandcoin (NENG) mining algorithm original upgrade ideas were mainly designed for decentralization of mining rigs on scrypt, which is same algo as litecoin/dogecoin. The way it is going now is that NENG is very suitable for bitcoin/litecoin/dogecoin hobbyists who can not , will not spend huge money to run noisy ASIC/GPU mining equipments, but still want to mine NENG at home with quiet simple CPU/GPU or with a cheap ASIC like FutureBit Moonlander 2 USB or Apollo pod on solo mining setup to obtain very decent profitable results. NENG allows bitcoin litecoin hobbyists to experience full node running, solo mining, CPU/GPU/ASIC for a fun experience at home at cheap cost without breaking bank on equipment or electricity.
MIT Free Course - 23 lectures about Bitcoin, Blockchain and Finance (Fall,2018)
https://www.youtube.com/playlist?list=PLUl4u3cNGP63UUkfL0onkxF6MYgVa04Fn
CPU Minable Coin Because of dynamic difficulty algorithm on top of scrypt, NewEnglandcoin is CPU Minable. Users can easily set up full node for mining at Home PC or Mac using our dedicated cheetah software.
Research on the first forked 50 blocks on v1.2.0 core confirmed that ASIC/GPU miners mined 66% of 50 blocks, CPU miners mined the remaining 34%.
NENG v1.4.0 release enabled CPU mining inside android phones.
Youtube Video Tutorial
How to CPU Mine NewEnglandcoin (NENG) in Windows 10 Part 1 https://www.youtube.com/watch?v=sdOoPvAjzlE How to CPU Mine NewEnglandcoin (NENG) in Windows 10 Part 2 https://www.youtube.com/watch?v=nHnRJvJRzZg
How to CPU Mine NewEnglandcoin (NENG) in macOS https://www.youtube.com/watch?v=Zj7NLMeNSOQ
Decentralization and Community Driven NewEnglandcoin is a decentralized coin just like bitcoin. There is no boss on NewEnglandcoin. Nobody nor the dev owns NENG.
We know a coin is worth nothing if there is no backing from community. Therefore, we as dev do not intend to make decision on this coin solely by ourselves. It is our expectation that NewEnglandcoin community will make majority of decisions on direction of this coin from now on. We as dev merely view our-self as coin creater and technical support of this coin while providing NENG a permanent home at ShorelineCrypto Exchange.
Twitter Airdrop
Follow NENG twitter and receive 100,000 NENG on Twitter Airdrop to up to 1000 winners
Graphic Redesign Bounty
Top one award: 90.9 million NENG Top 10 Winners: 500,000 NENG / person Event Timing: March 25, 2019 - Present Event Address: NewEnglandcoin DISCORD at: https://discord.gg/UPeBwgs
Please complete above Twitter Bounty requirement first. Then follow Below Steps to qualify for the Bounty: (1) Required: submit your own designed NENG logo picture in gif, png jpg or any other common graphic file format into DISCORD "bounty-submission" board (2) Optional: submit a second graphic for logo or any other marketing purposes into "bounty-submission" board. (3) Complete below form.
Please limit your submission to no more than two total. Delete any wrongly submitted or undesired graphics in the board. Contact DISCORD u/honglu69#5911 or u/krypton#6139 if you have any issues.
Twitter Airdrop/Graphic Redesign bounty sign up: https://goo.gl/forms/L0vcwmVi8c76cR7m1
Milestones
Roadmap
NENG v1.4.0 Android Mining, randomSpike Evaluation https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/NENG_2020_Q3_report/NENG_2020_Q3_report.pdf
RandomSpike - NENG core v1.3.0 Hardfork Upgrade Proposal https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/2020Q1_Report/Scrypt_RandomSpike_NENGv1.3.0_Hardfork_Proposal.pdf
NENG Security, Decentralization & Valuation
https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/2019Q2_report/NENG_Security_Decentralization_Value.pdf
Whitepaper v1.0 https://github.com/ShorelineCrypto/NewEnglandCoin/releases/download/whitepaper_v1.0/NENG_WhitePaper.pdf
DISCORD https://discord.gg/UPeBwgs
Explorer
http://www.findblocks.com/exploreNENG http://86.100.49.209/exploreNENG http://nengexplorer.mooo.com:3001/
Step by step guide on how to setup an explorer: https://github.com/ShorelineCrypto/nengexplorer
Github https://github.com/ShorelineCrypto/NewEnglandCoin
Wallet
Android with UserLand App (arm64/armhf), Chromebook (x64/arm64/armhf): https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0.5
Linux Wallet (Ubuntu/Linux Mint, Debian/MX Linux, Arch/Manjaro, Fedora, openSUSE): https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0.3
MacOS Wallet (10.11 El Capitan or higher): https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0.2
Android with GNUroot on 32 bits old Phones (alpha release) wallet: https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.4.0
Windows wallet: https://github.com/ShorelineCrypto/NewEnglandCoin/releases/tag/v1.3.0.1
addnode ip address for the wallet to sync faster, frequently updated conf file: https://github.com/ShorelineCrypto/cheetah_cpumineblob/mastenewenglandcoin.conf-example
How to Sync Full Node Desktop Wallet https://www.reddit.com/NewEnglandCoin/comments/er6f0q/how_to_sync_full_node_desktop_wallet/
TWITTER https://twitter.com/newenglandcoin
REDDIT https://www.reddit.com/NewEnglandCoin/
Cheetah CPU Miner Software https://github.com/ShorelineCrypto/cheetah_cpuminer
Solo Mining with GPU or ASIC https://bitcointalk.org/index.php?topic=5027091.msg52187727#msg52187727
How to Run Two Full Node in Same Desktop PC https://bitcointalk.org/index.php?topic=5027091.msg53581449#msg53581449
ASIC/GPU Mining Pools Warning to Big ASIC Miners Due to DynDiff Algo on top of Scrypt, solo mining is recommended for ASIC/GPU miners. Further more, even for mining pools, small mining pool will generate better performance than big NENG mining pool because of new algo v1.2.x post hard fork.
The set up configuration of NENG for scrypt pool mining is same as a typical normal scrypt coin. In other word, DynDiff on Scrypt algo is backward compatible with Scrypt algo. Because ASIC/GPU miners rely on CPU miners for smooth blockchain movement, checkout bottom of "Latest News" section for A WARNING to All ASIC miners before you decide to dump big ASIC hash rate into NENG mining.
(1) Original DynDiff Warning: https://bitcointalk.org/index.php?topic=5027091.msg48324708#msg48324708 (2) New Warning on RandomSpike Spike difficulty (244k) introduced in RandomSpike served as roadblocks to instant mining and provide security against 51% attack risk. However, this spike difficulty like a roadblock that makes big ASIC mining less profitable. In case of spike block to be mined, the spike difficulty immediately serve as base difficulty, which will block GPU/ASIC miners effectively and leave CPU cheetah solo miners dominating mining almost 100% until next base difficulty reset.
FindBlocks http://findblocks.com/
CRpool http://crpool.xyz/
Cminors' Pool http://newenglandcoin.cminors-pool.com/
SPOOL https://spools.online/
Exchange
📷
https://shorelinecrypto.com/
Features: anonymous sign up and trading. No restriction or limit on deposit or withdraw.
The trading pairs available: NewEnglandcoin (NENG) / Dogecoin (DOGE)
Trading commission: A round trip trading will incur 0.10% trading fees in average. Fees are paid only on buyer side. buy fee: 0.2% / sell fee: 0% Deposit fees: free for all coins Withdraw fees: ZERO per withdraw. Mining fees are appointed by each coin blockchain. To cover the blockchain mining fees, there is minimum balance per coin per account: * Dogecoin 2 DOGE * NewEnglandcoin 1 NENG
Latest News Aug 30, 2020 - NENG v1.4.0.5 Released for Android/Chromebook Upgrade with armhf, better hardware support https://bitcointalk.org/index.php?topic=5027091.msg55098029#msg55098029
Aug 11, 2020 - NENG v1.4.0.4 Released for Android arm64 Upgrade / Chromebook Support https://bitcointalk.org/index.php?topic=5027091.msg54977437#msg54977437
Jul 30, 2020 - NENG v1.4.0.3 Released for Linux Wallet Upgrade with 8 Distros https://bitcointalk.org/index.php?topic=5027091.msg54898540#msg54898540
Jul 21, 2020 - NENG v1.4.0.2 Released for MacOS Upgrade with Catalina https://bitcointalk.org/index.php?topic=5027091.msg54839522#msg54839522
Jul 19, 2020 - NENG v1.4.0.1 Released for MacOS Wallet Upgrade https://bitcointalk.org/index.php?topic=5027091.msg54830333#msg54830333
Jul 15, 2020 - NENG v1.4.0 Released for Android Mining, Ubuntu 20.04 support https://bitcointalk.org/index.php?topic=5027091.msg54803639#msg54803639
Jul 11, 2020 - NENG v1.4.0 Android Mining, randomSpike Evaluation https://bitcointalk.org/index.php?topic=5027091.msg54777222#msg54777222
Jun 27, 2020 - Pre-Announce: NENG v1.4.0 Proposal for Mobile Miner Upgrade, Android Mining Start in July 2020 https://bitcointalk.org/index.php?topic=5027091.msg54694233#msg54694233
Jun 19, 2020 - Best Practice for Futurebit Moonlander2 USB ASIC on solo mining mode https://bitcointalk.org/index.php?topic=5027091.msg54645726#msg54645726
Mar 15, 2020 - Scrypt RandomSpike - NENG v1.3.0.1 Released for better wallet syncing https://bitcointalk.org/index.php?topic=5027091.msg54030923#msg54030923
Feb 23, 2020 - Scrypt RandomSpike - NENG Core v1.3.0 Relased, Hardfork on Mar 1 https://bitcointalk.org/index.php?topic=5027091.msg53900926#msg53900926
Feb 1, 2020 - Scrypt RandomSpike Proposal Published- NENG 1.3.0 Hardfork https://bitcointalk.org/index.php?topic=5027091.msg53735458#msg53735458
Jan 15, 2020 - NewEnglandcoin Dev Team Expanded with New Kickoff https://bitcointalk.org/index.php?topic=5027091.msg53617358#msg53617358
Jan 12, 2020 - Explanation of Base Diff Reset and Effect of Supply https://www.reddit.com/NewEnglandCoin/comments/envmo1/explanation_of_base_diff_reset_and_effect_of/
Dec 19, 2019 - Shoreline_tradingbot version 1.0 is released https://bitcointalk.org/index.php?topic=5121953.msg53391184#msg53391184
Sept 1, 2019 - NewEnglandcoin (NENG) is Selected as Shoreline Tradingbot First Supported Coin https://bitcointalk.org/index.php?topic=5027091.msg52331201#msg52331201
Aug 15, 2019 - Mining Update on Effect of Base Difficulty Reset, GPU vs ASIC https://bitcointalk.org/index.php?topic=5027091.msg52169572#msg52169572
Jul 7, 2019 - CPU Mining on macOS Mojave is supported under latest Cheetah_Cpuminer Release https://bitcointalk.org/index.php?topic=5027091.msg51745839#msg51745839
Jun 1, 2019 - NENG Fiat project is stopped by Square, Inc https://bitcointalk.org/index.php?topic=5027091.msg51312291#msg51312291
Apr 21, 2019 - NENG Fiat Project is Launched by ShorelineCrypto https://bitcointalk.org/index.php?topic=5027091.msg50714764#msg50714764
Apr 7, 2019 - Announcement of Fiat Project for all U.S. Residents & Mobile Miner Project Initiation https://bitcointalk.org/index.php?topic=5027091.msg50506585#msg50506585
Apr 1, 2019 - Disclosure on Large Buying on NENG at ShorelineCrypto Exchange https://bitcointalk.org/index.php?topic=5027091.msg50417196#msg50417196
Mar 27, 2019 - Disclosure on Large Buying on NENG at ShorelineCrypto Exchange https://bitcointalk.org/index.php?topic=5027091.msg50332097#msg50332097
Mar 17, 2019 - Disclosure on Large Buying on NENG at ShorelineCrypto Exchange https://bitcointalk.org/index.php?topic=5027091.msg50208194#msg50208194
Feb 26, 2019 - Community Project - NewEnglandcoin Graphic Redesign Bounty Initiated https://bitcointalk.org/index.php?topic=5027091.msg49931305#msg49931305
Feb 22, 2019 - Dev Policy on Checkpoints on NewEnglandcoin https://bitcointalk.org/index.php?topic=5027091.msg49875242#msg49875242
Feb 20, 2019 - NewEnglandCoin v1.2.1 Released to Secure the Hard Kork https://bitcointalk.org/index.php?topic=5027091.msg49831059#msg49831059
Feb 11, 2019 - NewEnglandCoin v1.2.0 Released, Anti-51% Attack, Anti-instant Mining after Hard Fork https://bitcointalk.org/index.php?topic=5027091.msg49685389#msg49685389
Jan 13, 2019 - Cheetah_CpuMiner added support for CPU Mining on Mac https://bitcointalk.org/index.php?topic=5027091.msg49218760#msg49218760
Jan 12, 2019 - NENG Core v1.1.2 Released to support MacOS OSX Wallet https://bitcointalk.org/index.php?topic=5027091.msg49202088#msg49202088
Jan 2, 2019 - Cheetah_Cpuminer v1.1.0 is released for both Linux and Windows https://bitcointalk.org/index.php?topic=5027091.msg49004345#msg49004345
Dec 31, 2018 - Technical Whitepaper is Released https://bitcointalk.org/index.php?topic=5027091.msg48990334#msg48990334
Dec 28, 2018 - Cheetah_Cpuminer v1.0.0 is released for Linux https://bitcointalk.org/index.php?topic=5027091.msg48935135#msg48935135
Update on Dec 14, 2018 - NENG Blockchain Stuck Issue https://bitcointalk.org/index.php?topic=5027091.msg48668375#msg48668375
Nov 27, 2018 - Exclusive for PC CPU Miners - How to Steal a Block from ASIC Miners https://bitcointalk.org/index.php?topic=5027091.msg48258465#msg48258465
Nov 28, 2018 - How to CPU Mine a NENG block with window/linux PC https://bitcointalk.org/index.php?topic=5027091.msg48298311#msg48298311
Nov 29, 2018 - A Warning to ASIC Miners https://bitcointalk.org/index.php?topic=5027091.msg48324708#msg48324708
Disclosure: Dev Team Came from ShorelineCrypto, a US based Informatics Service Business offering Fee for service for Coin Creation, Coin Exchange Listing, Blockchain Consulting, etc.
submitted by honglu69 to NewEnglandCoin [link] [comments]

Groestlcoin 6th Anniversary Release

Introduction

Dear Groestlers, it goes without saying that 2020 has been a difficult time for millions of people worldwide. The groestlcoin team would like to take this opportunity to wish everyone our best to everyone coping with the direct and indirect effects of COVID-19. Let it bring out the best in us all and show that collectively, we can conquer anything.
The centralised banks and our national governments are facing unprecedented times with interest rates worldwide dropping to record lows in places. Rest assured that this can only strengthen the fundamentals of all decentralised cryptocurrencies and the vision that was seeded with Satoshi's Bitcoin whitepaper over 10 years ago. Despite everything that has been thrown at us this year, the show must go on and the team will still progress and advance to continue the momentum that we have developed over the past 6 years.
In addition to this, we'd like to remind you all that this is Groestlcoin's 6th Birthday release! In terms of price there have been some crazy highs and lows over the years (with highs of around $2.60 and lows of $0.000077!), but in terms of value– Groestlcoin just keeps getting more valuable! In these uncertain times, one thing remains clear – Groestlcoin will keep going and keep innovating regardless. On with what has been worked on and completed over the past few months.

UPDATED - Groestlcoin Core 2.18.2

This is a major release of Groestlcoin Core with many protocol level improvements and code optimizations, featuring the technical equivalent of Bitcoin v0.18.2 but with Groestlcoin-specific patches. On a general level, most of what is new is a new 'Groestlcoin-wallet' tool which is now distributed alongside Groestlcoin Core's other executables.
NOTE: The 'Account' API has been removed from this version which was typically used in some tip bots. Please ensure you check the release notes from 2.17.2 for details on replacing this functionality.

How to Upgrade?

Windows
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), then run the installer.
OSX
If you are running an older version, shut it down. Wait until it has completely shut down (which might take a few minutes for older versions), run the dmg and drag Groestlcoin Core to Applications.
Ubuntu
http://groestlcoin.org/forum/index.php?topic=441.0

Other Linux

http://groestlcoin.org/forum/index.php?topic=97.0

Download

Download the Windows Installer (64 bit) here
Download the Windows Installer (32 bit) here
Download the Windows binaries (64 bit) here
Download the Windows binaries (32 bit) here
Download the OSX Installer here
Download the OSX binaries here
Download the Linux binaries (64 bit) here
Download the Linux binaries (32 bit) here
Download the ARM Linux binaries (64 bit) here
Download the ARM Linux binaries (32 bit) here

Source

ALL NEW - Groestlcoin Moonshine iOS/Android Wallet

Built with React Native, Moonshine utilizes Electrum-GRS's JSON-RPC methods to interact with the Groestlcoin network.
GRS Moonshine's intended use is as a hot wallet. Meaning, your keys are only as safe as the device you install this wallet on. As with any hot wallet, please ensure that you keep only a small, responsible amount of Groestlcoin on it at any given time.

Features

Download

iOS
Android

Source

ALL NEW! – HODL GRS Android Wallet

HODL GRS connects directly to the Groestlcoin network using SPV mode and doesn't rely on servers that can be hacked or disabled.
HODL GRS utilizes AES hardware encryption, app sandboxing, and the latest security features to protect users from malware, browser security holes, and even physical theft. Private keys are stored only in the secure enclave of the user's phone, inaccessible to anyone other than the user.
Simplicity and ease-of-use is the core design principle of HODL GRS. A simple recovery phrase (which we call a Backup Recovery Key) is all that is needed to restore the user's wallet if they ever lose or replace their device. HODL GRS is deterministic, which means the user's balance and transaction history can be recovered just from the backup recovery key.

Features

Download

Main Release (Main Net)
Testnet Release

Source

ALL NEW! – GroestlcoinSeed Savior

Groestlcoin Seed Savior is a tool for recovering BIP39 seed phrases.
This tool is meant to help users with recovering a slightly incorrect Groestlcoin mnemonic phrase (AKA backup or seed). You can enter an existing BIP39 mnemonic and get derived addresses in various formats.
To find out if one of the suggested addresses is the right one, you can click on the suggested address to check the address' transaction history on a block explorer.

Features

Live Version (Not Recommended)

https://www.groestlcoin.org/recovery/

Download

https://github.com/Groestlcoin/mnemonic-recovery/archive/master.zip

Source

ALL NEW! – Vanity Search Vanity Address Generator

NOTE: NVidia GPU or any CPU only. AMD graphics cards will not work with this address generator.
VanitySearch is a command-line Segwit-capable vanity Groestlcoin address generator. Add unique flair when you tell people to send Groestlcoin. Alternatively, VanitySearch can be used to generate random addresses offline.
If you're tired of the random, cryptic addresses generated by regular groestlcoin clients, then VanitySearch is the right choice for you to create a more personalized address.
VanitySearch is a groestlcoin address prefix finder. If you want to generate safe private keys, use the -s option to enter your passphrase which will be used for generating a base key as for BIP38 standard (VanitySearch.exe -s "My PassPhrase" FXPref). You can also use VanitySearch.exe -ps "My PassPhrase" which will add a crypto secure seed to your passphrase.
VanitySearch may not compute a good grid size for your GPU, so try different values using -g option in order to get the best performances. If you want to use GPUs and CPUs together, you may have best performances by keeping one CPU core for handling GPU(s)/CPU exchanges (use -t option to set the number of CPU threads).

Features

Usage

https://github.com/Groestlcoin/VanitySearch#usage

Download

Source

ALL NEW! – Groestlcoin EasyVanity 2020

Groestlcoin EasyVanity 2020 is a windows app built from the ground-up and makes it easier than ever before to create your very own bespoke bech32 address(es) when whilst not connected to the internet.
If you're tired of the random, cryptic bech32 addresses generated by regular Groestlcoin clients, then Groestlcoin EasyVanity2020 is the right choice for you to create a more personalised bech32 address. This 2020 version uses the new VanitySearch to generate not only legacy addresses (F prefix) but also Bech32 addresses (grs1 prefix).

Features

Download

Source

Remastered! – Groestlcoin WPF Desktop Wallet (v2.19.0.18)

Groestlcoin WPF is an alternative full node client with optional lightweight 'thin-client' mode based on WPF. Windows Presentation Foundation (WPF) is one of Microsoft's latest approaches to a GUI framework, used with the .NET framework. Its main advantages over the original Groestlcoin client include support for exporting blockchain.dat and including a lite wallet mode.
This wallet was previously deprecated but has been brought back to life with modern standards.

Features

Remastered Improvements

Download

Source

ALL NEW! – BIP39 Key Tool

Groestlcoin BIP39 Key Tool is a GUI interface for generating Groestlcoin public and private keys. It is a standalone tool which can be used offline.

Features

Download

Windows
Linux :
 pip3 install -r requirements.txt python3 bip39\_gui.py 

Source

ALL NEW! – Electrum Personal Server

Groestlcoin Electrum Personal Server aims to make using Electrum Groestlcoin wallet more secure and more private. It makes it easy to connect your Electrum-GRS wallet to your own full node.
It is an implementation of the Electrum-grs server protocol which fulfils the specific need of using the Electrum-grs wallet backed by a full node, but without the heavyweight server backend, for a single user. It allows the user to benefit from all Groestlcoin Core's resource-saving features like pruning, blocks only and disabled txindex. All Electrum-GRS's feature-richness like hardware wallet integration, multi-signature wallets, offline signing, seed recovery phrases, coin control and so on can still be used, but connected only to the user's own full node.
Full node wallets are important in Groestlcoin because they are a big part of what makes the system be trust-less. No longer do people have to trust a financial institution like a bank or PayPal, they can run software on their own computers. If Groestlcoin is digital gold, then a full node wallet is your own personal goldsmith who checks for you that received payments are genuine.
Full node wallets are also important for privacy. Using Electrum-GRS under default configuration requires it to send (hashes of) all your Groestlcoin addresses to some server. That server can then easily spy on your transactions. Full node wallets like Groestlcoin Electrum Personal Server would download the entire blockchain and scan it for the user's own addresses, and therefore don't reveal to anyone else which Groestlcoin addresses they are interested in.
Groestlcoin Electrum Personal Server can also broadcast transactions through Tor which improves privacy by resisting traffic analysis for broadcasted transactions which can link the IP address of the user to the transaction. If enabled this would happen transparently whenever the user simply clicks "Send" on a transaction in Electrum-grs wallet.
Note: Currently Groestlcoin Electrum Personal Server can only accept one connection at a time.

Features

Download

Windows
Linux / OSX (Instructions)

Source

UPDATED – Android Wallet 7.38.1 - Main Net + Test Net

The app allows you to send and receive Groestlcoin on your device using QR codes and URI links.
When using this app, please back up your wallet and email them to yourself! This will save your wallet in a password protected file. Then your coins can be retrieved even if you lose your phone.

Changes

Download

Main Net
Main Net (FDroid)
Test Net

Source

UPDATED – Groestlcoin Sentinel 3.5.06 (Android)

Groestlcoin Sentinel is a great solution for anyone who wants the convenience and utility of a hot wallet for receiving payments directly into their cold storage (or hardware wallets).
Sentinel accepts XPUB's, YPUB'S, ZPUB's and individual Groestlcoin address. Once added you will be able to view balances, view transactions, and (in the case of XPUB's, YPUB's and ZPUB's) deterministically generate addresses for that wallet.
Groestlcoin Sentinel is a fork of Groestlcoin Samourai Wallet with all spending and transaction building code removed.

Changes

Download

Source

UPDATED – P2Pool Test Net

Changes

Download

Pre-Hosted Testnet P2Pool is available via http://testp2pool.groestlcoin.org:21330/static/

Source

submitted by Yokomoko_Saleen to groestlcoin [link] [comments]

First home server; will my plan accomplish my goals?

I'm planning to build my first home server, and I'd love some feedback on my plans before I buy all the hardware. Can you folks help me with some feedback?
 
What I Want to Do with My Hardware
 
Constraints
 
Current Plan
 
Currently Planned Hardware
Type Item Price
CPU Intel - Xeon E5-2660 V2 2.2 GHz 10-Core Processor $192.97 @ PCM
CPU Intel - Xeon E5-2660 V2 2.2 GHz 10-Core Processor $192.97 @ PCM
CPU Cooler Noctua - NH-D14 SE2011 CPU Cooler $89.99 @ Amazon
CPU Cooler Noctua - NH-D14 SE2011 CPU Cooler $89.99 @ Amazon
Thermal Compound Thermal Grizzly - Aeronaut 3.9 g Thermal Paste $11.59 @ Amazon
Motherboard ASRock - EP2C602-4L/D16 SSI EEB Dual-CPU LGA2011 Motherboard $481.98 @ Newegg
Memory Crucial - 32 GB (2 x 16 GB) Registered DDR3-1866 Memory $159.99 @ Amazon
Storage Western Digital - Blue 1 TB 2.5" Solid State Drive $114.89 @ OutletPC
Storage Western Digital - Blue 1 TB 2.5" Solid State Drive $114.89 @ OutletPC
Storage Western Digital - Red Pro 8 TB 3.5" 7200RPM Internal Hard Drive $140.00
Storage Western Digital - Red Pro 8 TB 3.5" 7200RPM Internal Hard Drive $140.00
Storage Western Digital - Red Pro 8 TB 3.5" 7200RPM Internal Hard Drive $140.00
Storage Western Digital - Red Pro 8 TB 3.5" 7200RPM Internal Hard Drive $140.00
Storage Western Digital - Red Pro 8 TB 3.5" 7200RPM Internal Hard Drive $140.00
Storage Western Digital - Red Pro 8 TB 3.5" 7200RPM Internal Hard Drive $140.00
Video Card Asus - GeForce GTX 1060 6GB 6 GB Strix Video Card $359.98 @ B&H
Case Phanteks - Enthoo Pro Tempered Glass ATX Full Tower Case $122.00 @ Amazon
Power Supply Corsair - HX Platinum 750 W 80+ Platinum Certified Fully Modular ATX Power Supply $99.99 @ Newegg
Sound Card Creative Labs - Sound Blaster Z 30SB150200000 OEM 24-bit 192 kHz Sound Card $90.77 @ OutletPC
Prices include shipping, taxes, rebates, and discounts
Total (before mail-in rebates) $3002.00
Mail-in rebates -$40.00
Total $2962.00
 
Hardware Notes
 
Budget
 
Other Notes
 
My main question is: will this hardware and software setup accomplish my goals?
My secondary question is: is any of my hardware unnecessary for my goals? are there better ways to eat this Reese's?
Thanks so much for all the help in advance, I've learned so much from this subreddit (and DataHoarding) already!
submitted by therightrook to homelab [link] [comments]

Vertnode - An automated solution for installing Vertcoin node(s) on Single Board Computers

Hello Vertcoin Community,
Eager to contribute to the Vertcoin Community I began creating step by step walkthrough guides on how to get a Vertcoin node up and running on a Raspberry Pi, Raspberry Pi Zero and Intel NUC. Along with information to get a Vertcoin node up and running was also optional steps to install p2pool-vtc.
I decided that while this step by step guide might be helpful to a few, a setup script may prove to be useful to a wider range of people. I have this script to a point where I think it may be productive to share with a bigger audience, for those who are brave and have this hardware sitting around or like to tinker with projects; I invite you to test this setup script if you are interested, if you run into errors any sort of verbose console output of the error proves to be extremely helpful in troubleshooting.
The script was designed to produce a “headless” server... meaning we will not be using a GUI to configure Vertcoin or check to see how things are running. In fact, once the server is set up, you will only interact with it using command line calls over SSH. The idea is to have this full node be simple, low-power, with optimized memory usage and something that “just runs” in your basement, closet, etc.
Why run a headless node on a Single Board Computer?
The idea is to have this full node be simple, low-power, with optimized memory usage and something that “just runs” in your basement, closet, etc.
Required: USB Flash Drive 6GB - 32GB
Please note that the script was designed for Single Board Computers first and looks for an accessible USB Flash Drive to use for storing the blockchain and swap file, as constant writing to a microSD can degrade the health of the microSD.
Supports

Hardware

All of the hardware listed above is hardware that I have personally tested / am testing on myself. The plan is to continue expanding my arsenal of single board computers and continue to add support for more hardware to ensure as much compatibility as possible.
Functionality
It is worth noting that LIT can be ran with multiple configurations, the ones displayed in the Post Installation Report reflect values that run LIT with the Vertcoin Mainnet. Please be aware that the Vertcoin Testnet chain has not been mined 100% of the time in the past, if you make transactions on the Vertcoin testnet that do not go through it is likely because the chain has stopped being mined.
BE CAREFUL WITH YOUR COINS, ONLY TEST WITH WHAT YOU ARE OKAY WITH LOSING IF YOU USE THE MAINNET.

Vertcoin Testnet Coins

https://tvtc.blkidx.org/faucet/
I've included some documentation on LIT I created which includes information I found to be useful: https://github.com/e-corp-sam-sepiol/vertnode/blob/mastedocs/lit.md
Please visit the mit-dci/lit github repository for the most up to date information on lit: https://github.com/mit-dci/lit

Vertnode | Automated Vertcoin Node Installation Script

https://github.com/e-corp-sam-sepiol/vertnode

Recommended: Use Etcher to install the chosen OS to your microSD card / USB flash drive.

If you intend on installing Ubuntu Server 16.04 to your Intel NUC please use Etcher to install the .iso to your USB flash drive.
https://etcher.io/
PLEASE NOTE THIS SCRIPT MAY GIVE AN ERROR. THIS IS THE NATURE OF TESTING. PLEASE REPORT YOUR ERRORS IF YOU WANT THEM TO BE FIXED/RESOLVED. THANK YOU FOR BETTERING THE DEVELOPMENT OF THIS SCRIPT.

Ubuntu Server 16.04 Setup Details

You can use different clients to ssh into your node. One option is using PuTTY or Git Bash on Windows which is included in the desktop version of Git. If you are using Linux you can simply open a new terminal window and ssh to the IP address of your node (hardware you intend installing the Vertcoin node on).
You will need to know the IP address of your node, this can be found on your router page.
ssh 192.168.1.5 -l pi For example, this command uses ssh to login to 192.168.1.5 using the -l login name of pi. The IP address of your node will likely be different for you, in this example I am logging into a Raspberry Pi which has a default login name of pi.
A brief list of commands that can be used to check on the Vertcoin node status:
vertcoin-cli getblockchaininfo | Grab information about your blockchain
vertcoin-cli getblockcount | Grab the current count of blocks on your node
vertcoin-cli getconnectioncount | Grab the current count of connections to your node. A number of connections larger than 8 means that you have incoming connections to your node. The default settings are to make 8 outgoing connections. If you want incoming connections please port forward your Raspberry Pi in your Router settings page.
vertcoin-cli getpeerinfo | Grab the information about the peers you have connected to / are connected to
vertcoin-cli getnettotals | Grab network data, how much downloaded/upload displayed in bytes
tail -f ~/.vertcoin/debug.log | Output the latest lines in the Vertcoin debug.log to see verbose information about the Vertcoin daemon (ctrl+c to stop)
Thank you to all who have helped me and inspired me thus far, @b17z, @jamesl22, @vertcoinmarketingteam, @canen, @flakfired, @etang600, @BDF, @tucker178, @Xer0
This work is dedicated to the users of Vertcoin, thank you for making this possible.
7/20/2018 Thank you @CommodoreAmiga for the incredibly generous tip <3
You can reach me @Sam Sepiol#3396 on the Vertcoin Discord, here on reddit or @ [email protected]
submitted by ecorp-sam-sepiol to vertcoin [link] [comments]

GIVEWAY BITCORE on Twitter

GIVEWAY BITCORE on Twitter submitted by dgcarlosleon to bitcore_btx [link] [comments]

Small form factor for home server and Bitcoin node

Before I start, let me emphasize on the fact that this request is something probably quite unusual for this sub and I apologize if it doesn't belong here. If that's the case, please let me know.

What will you be doing with this PC? Be as specific as possible, and include specific games or programs you will be using.
I'm looking for a small, quiet and affordable computer which will run 24/7 in my house. The aim is to make it a personal server and a Bitcoin node (not for mining, just a node).
A Bitcoin node should run on hardware with good endurance, stable internet connection, a large storage and that can run for a long period of time.

What is your maximum budget before rebates/shipping/taxes?
300€

When do you plan on building/buying the PC? Note: beyond a week or two from today means any build you receive will be out of date when you want to buy.
Anytime during this summer.

What, exactly, do you need included in the budget? (ToweOS/monitokeyboard/mouse/etc)
I'm not sure if it's the right place but here are my criteria:

Which country (and state/province) will you be purchasing the parts in? If you're in US, do you have access to a Microcenter location?
France

If reusing any parts (including monitor(s)/keyboard/mouse/etc), what parts will you be reusing? Brands and models are appreciated.
I will use this computer as as server so via SSH after the install. I already own some spare monitors and peripherals.

Will you be overclocking? If yes, are you interested in overclocking right away, or down the line? CPU and/or GPU?
No

Are there any specific features or items you want/need in the build? (ex: SSD, large amount of storage or a RAID setup, CUDA or OpenCL support, etc)
As said earlier, I need a large storage for the Bitcoin node. I'm thinking about a 2TB NAS HDD so it can last for a very long time. The NAS variant of HDD is probably the one which suits my needs the most as the disk will be very frequently accessed and will run 24/7.

Do you have any specific case preferences (Size like ITX/microATX/mid-towefull-tower, styles, colors, window or not, LED lighting, etc), or a particular color theme preference for the components?
Mini ATX if possible. I'd prefer a small form factor. The most important part of the case is its protectiveness, the rest is not important.

Do you need a copy of Windows included in the budget? If you do need one included, do you have a preference?
No, I will install a linux distro.

Extra info or particulars:

I found the Odroid H2 and Odroid HC2 which fit my needs perfectly but they are either sold out, unavailable or have insanely high customs fees. Also I checked Intel NUCs but I'm not sure it is what I need, especially for the price. A Raspberry Pi is not a good choice because of the storage capabilities (connected by USB 2.0) and limited RAM.
I considered building a machine myself but I'm not sure which components to use, and where to buy them. This is why I came here and this is something I'm still open to, if the price is not too high.
submitted by ImAFlyingPancake to buildapcforme [link] [comments]

BitCore Offcially enters Africa

BitCore Offcially enters Africa
BitCore is creating a big community across the world, After Europe and Asia, next step is Africa. We aim to be a great part of how Africa trade's going forward.
https://preview.redd.it/thma4t9112531.png?width=1440&format=png&auto=webp&s=ad3fd2f6bd894539ecc490b9d5fb11cbd049d9df

We have set up the #BitCore $BTX Africa Community. Meet our #African #Community #Manager, Opa. He will help to build a robust BTX Africa community and a bridge between the Africa community and the BTX global community.

Everyone is invited to join the official Africa community group: https://t.me/BitCore_Africa

S&R. https://twitter.com/Bitcore_BTX/status/1139141088269230080?s=19

https://preview.redd.it/w99t9umt22531.jpg?width=1440&format=pjpg&auto=webp&s=ea10ed8679651babb2d45f296fd670421fc331a8
Web News | Project Timeline | Community | Directory | Developer & Team | Specification New | White Paper | Ecosystem | Network | Videos | Governammce | Innovation | FAQ Market info Coinmarketcap | World Coin Index | Cryptocompare | COIN360 NEW Devs Limxtec Explorers InsightAPI | CryptoID | Livenet | ZelCore Charts TradingView NEW Wallets Mac QT | Windows QT | Win + Block | Electrum Portable | Linux QT | TSBW Coinomi iOS | Android | Win | Mac |Linux ZelCore Mac | Win | Portable | Linux | iOS | Android Jaxx Liberty iOS | Android | Chrome extension | Mac OSX | Win x64/x86 Paytomat iOs | Android Trezor Website Ellipal Website Archos Website Magnum Website | Android NEW Blockchain Financial Website NEW Exchanges BarterDex | BitBase | Bitexlive | Bit-Z | Crex24 | CoinExchange | CryptoChange | Excoincial | Exrates | HitBTC | InstaSwap | Ktrade | Nova | PayCML | QBTC | Reflex Trader | Trade Satoshi | TX.com NEW | Zyrex NEW
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Community Telegram Official | Deutsch | Español | Africa NEW | Türkçe | Français | Venezuela | Argentina | Italiano | русский | 电报中文社群 NEW | Philippine | Bahasa | România Twitter Official | Venezuela NEW - Bitcointalk Official | Español - Facebook BitCore BTX Group | BitCore Fanpage Discord | Instagram | Chatoncrypto | Reddit | VK русский | 微博 NEW | 链节点主页 NEW | Medium NEW
submitted by dgcarlosleon to bitcore_btx [link] [comments]

New desktop version of Coinomi

New desktop version of Coinomi
https://preview.redd.it/zfbe73n8l7921.png?width=1440&format=png&auto=webp&s=fe8f55df5d66d3deabb359ead49f0033eb8bd8bf
Celebrating the successes of our partners, today we share the new desktop version (Win, Mac and Linux) of our Coinomi Friends. Congratulations
@CoinomiWallet now has a #desktop #wallet and supports #Bitcore $BTX on all platforms, #IOS, #Android, #Mac, #Windows and #Linux. Securely #store and #manage your #Btx.
Visit Coinomi
https://preview.redd.it/6oxies39l7921.png?width=1440&format=png&auto=webp&s=8624bb06a31afc9ca0b8917c3936404fe1f629f2
Web: Official | News | Coin Specs | Roadmap | White Paper | Ecosystem | Network Update | Community | FAQ | Blog | Team Wallets Mac QT | Windows QT | Win + Block | Electrum Portable | Linux QT | TSBW Coinomi iOS | Android |Win | Mac | Linux ZelCore Mac | Win | Portable | Linux | iOSAndroid Jaxx Liberty iOS | Android | Chrome extension | Mac OSX | Win x64/x86 Trezor Web Ellipal Web Anchor Web Exchanges: Bit Z | Cryptopia | HitBTC | Exrates | Crypto Bridge | Coinexchange | Bitexlive | Bitibu | Trade Satoshi | PayCML| InstaSwap | CryptoChangeCrex24 | Bitsten | BarterDEX | EasyRabBit | InstaSwap | Ktrade | Nova | SimpleSwap Services: Livingroom of Satoshi | Kamoney | Cryptonaut | EasyRabBit.net | LuckyGames.io | Games4coins.com | PayByte | BitBase | AtomicPay | Cryptocrown Block Explorers: InsightAPI | Crypto ID | Liivenet Mining Pools: Bitcorepool | Yiimp | Suprnova | Chainworks | Umine | Ant Mine Pool | Coin Miners | BSOD | BTXpool | Minersport | Omegapool | PoolGPU Market Info: CoinMarketCap | World Coin Index | Cryptocompare Source: Github | DgCarlosLeon Devs Limxtec
submitted by dgcarlosleon to bitcore_btx [link] [comments]

Creating a Headless Staking Node on Ubuntu 18.04

Creating a Headless Staking Node on Ubuntu 18.04
##UPDATE## Step 8 - Option 2, has some bugs in the final build process. i haven't had time to work them out yet!

This guide will take you through building and running a headless x42 Full Node! The OS I am using here is Ubuntu 18.04, this guide picks up from a complete/fresh ubuntu install.
This is meant to setup a staking node and so this guide will run you through building, configuring and setting up staking. It will not cover sending transactions or anything else.
The things we are going to do:
  • Step 1 - Install .net core
  • Step 2 - Download The x42 Node Source & Compile It
  • Step 3 - Setting The x42 Node Up To Run On Boot
  • Step 4 - Setup A New Wallet
  • Step 5 - Configure The x42 Daemon
  • Step 6 - Get Address
  • Step 7 - Check Balance
  • Step 8 - Connect The UI Wallet To A Headless Node
  • Step 8 - [Option 1 - Use Installer] Connect The UI Wallet To A Headless Node
  • Step 8 - [Option 2 - Build/Compile UI Only] Connect The UI Wallet To A Headless Node # BROKEN#

Step 1 - Install .net Core

Here is the reference link:
https://dotnet.microsoft.com/download/linux-package-manageubuntu18-04/sdk-current
Register Microsoft Key’s & Install Their repos:
cd /tmp wget -q https://packages.microsoft.com/config/ubuntu/18.04/packages-microsoft-prod.deb sudo dpkg -i packages-microsoft-prod.deb sudo add-apt-repository universe sudo apt -y install apt-transport-https sudo apt update sudo apt -y install dotnet-sdk-2.2 
Microsoft collect telemetry data by default, if you are part of the “tin foil hat brigade” you can set the following environment variable to turn it off:
echo "DOTNET_CLI_TELEMETRY_OPTOUT=1" >> /etc/environment 
now you should be at a point where .net core is installed on your system… that wasn’t so hard was it! You can check by running the following command:
dotnet--list-sdks 
The output should look like this:
$ dotnet --list-sdks 2.2.103 [/usshare/dotnet/sdk] 

Step 2 - Download & Compile The x42 Node

This part assumes you have GIT installed, if not:
apt -y install git 
Now to pull down the source and compile it!
cd ~/ git clone https://github.com/x42protocol/X42-FullNode.git # “cd” into the source folder cd X42-FullNode/src/ 
Now .net core uses NuGet for package management, before we compile, we need to pull down all of the required packages.. its as simple as running (this will take a couple of minutes) inside of “X42-FullNode/src/”:
dotnet restore 
now we are ready to compile the source, execute (inside of “X42-FullNode/src/”):
dotnet build --configuration Release 
ignore the yellow warnings, this is just the rosyln compiler having a grumble.. if you get red ones then something went wrong! The “--configuration Release” will strip out all debug symbols and slim things down.. only a little, this optional parameter is not mandatory.
Once this is done everything is built/compiled, you can run the daemon directly from the repository, this can be done by going to:
cd ~/X42-FullNode/src/x42.x42D/bin/Release/netcoreapp2.1 dotnet x42.x42D.dll 
this will kick off the node, however if you exit SSH at this time it will kill the process! however I always recommend copying out the binaries to a separate folder. This can be done with the following:
mkdir ~/x42node mv ~/X42-FullNode/src/x42.x42D/bin/Release/netcoreapp2.1/*.* ~/x42node/ 
now we have everything we need to run the node outside the git repository! What we need to do now is run the node and have it create the default x42.conf file.. so
cd ~/x42node dotnet x42.x42D.dll 
feel free to hit “CTRL + C” to exit the application after a couple of seconds, by then the folders/files would have been created at the following path:
~/.x42node/x42/x42Main/ 

Step 3 - Setting The x42 Node Up To Run on Boot

Now we are going to create a service file so our x42 node automatically starts when the system is rebooted.
THINGS TO NOTE ABOUT BELOW.. CHANGE THE ##USER## to the username your currently using as these files are within your home directory!
We need to drop to root for this..
sudo -i cat < /etc/systemd/system/x42node.service [Unit] Description=x42 Node [Service] WorkingDirectory=/home/##USER##/x42node ExecStart=/usbin/dotnet /home/##USER##/x42node/x42.x42D.dll Restart=always # Restart service after 10 seconds if the dotnet service crashes: RestartSec=10 SyslogIdentifier=x42node User=##USER## Environment=ASPNETCORE_ENVIRONMENT=Development [Install] WantedBy=multi-user.target EOF 
To enable the service, run the following (as the root user):
systemctl enable x42node.service 
BOOM.. the node isn’t running yet.. but next time the system restarts it will automatically run!
now lets exit out of root!
exit 
We can now start the node up and begin downloading blocks, by running the following command:
sudo systemctl start x42node.service 
if you want to check its loaded and see some of the output, you can run:
sudo systemctl status x42node.service 
an example of the output:
$ sudo systemctl status x42node.service ● x42node.service - x42 Node Loaded: loaded (/etc/systemd/system/x42node.service; enabled; vendor preset: enabled) Active: active (running) since Thu 2019-01-24 15:47:55 UTC; 14s ago Main PID: 5456 (dotnet) Tasks: 23 (limit: 1112) CGroup: /system.slice/x42node.service └─5456 /usbin/dotnet /home/darthnoodle/x42node/x42.x42D.dll Jan 24 15:48:09 x42staking x42node[5456]: Batch Size: 0 Mb (0 headers) Jan 24 15:48:09 x42staking x42node[5456]: Cache Size: 0/50 MB Jan 24 15:48:09 x42staking x42node[5456]: Jan 24 15:48:09 x42staking x42node[5456]: =======Mempool======= Jan 24 15:48:09 x42staking x42node[5456]: MempoolSize: 0 DynamicSize: 0 kb OrphanSize: 0 Jan 24 15:48:09 x42staking x42node[5456]: Jan 24 15:48:09 x42staking x42node[5456]: info: Stratis.Bitcoin.Connection.ConnectionManagerBehavior[0] Jan 24 15:48:09 x42staking x42node[5456]: Peer '[::ffff:86.184.76.255]:52342' connected (outbound), agent 'x42:1.2.13 (70012)', height 213920 Jan 24 15:48:09 x42staking x42node[5456]: info: Stratis.Bitcoin.Connection.ConnectionManagerBehavior[0] Jan 24 15:48:09 x42staking x42node[5456]: Peer '[::ffff:86.184.76.255]:52342' offline, reason: 'Receiving cancelled.'. All node screen output can be found in the /valog/syslog file. 

Step 4 - Setup a New Wallet

With the Node running, we now need to setup and/or restore a wallet!
Everything will be performed through the API’s, however by default these API’s are listening on localhost (127.0.0.1), if you are connecting in remotely then this would be a problem since you cant hit that IP. The solution, SSH TUNNEL!
Execute the following command on your local system:
ssh -L 42220:localhost:42220 @ 
This binds the local port (on your system) with 127.0.0.1:42220 on the remote system, once you have executed the command you can type the following address in your laptop/desktop’s web browser and be able to access the API’s:
http://127.0.0.1:42220/swaggeindex.html 
It should look something like this:
https://preview.redd.it/9lzeg3vob8d21.jpg?width=482&format=pjpg&auto=webp&s=b5d574998816056140d5d6de7b03c56772a892fe
To Create a new wallet, first we have to generate some mnemonic works (e.g. the seed), you can do that by going to the following API:
/api/Wallet/mnemonic 
Hit the “Try it out” button which then prompts you for 2 fields:
https://preview.redd.it/dvbdllfrb8d21.jpg?width=722&format=pjpg&auto=webp&s=766d14bafba6facbcd56d31c63c0012748e682e5
Enter “English” and I would recommend 24 words as this greatly increases the seed strength! Once that is done you hit execute and then scroll down to see the “Response Body”, this should contain the mnemonic which you are going to use to create the wallet! This looks something like below:
https://preview.redd.it/6p4q0rsub8d21.jpg?width=603&format=pjpg&auto=webp&s=44b9265626467a43ca670b134c4d28187f475c2e
THIS IS VERY IMPORTANT, BACKUP THIS MNEMONIC TO A SAFE SECURE LOCATION THAT IS ENCRYPTED!!!
So now we have our mnemonic, its time to generate the wallet, for this we need to use the API:
/api/Wallet/create
There are a number of parameters which are required in order to create a wallet:
WalletCreationRequest{ mnemonic string password* string passphrase* string name* string } 
It should be noted that the password and mnemonic are is the most important parts of this request where the “password” will encrypt the wallet and Is required to unlock it.
  • Hit the “Try it out” button
  • input the necessary data
  • Insert the mnemonic
  • Put a password & passphrase
  • “Name” is what your wallet will be called
It should look something like the following:
https://preview.redd.it/958ttfbxb8d21.jpg?width=603&format=pjpg&auto=webp&s=ce48336436ea4b469b5e87513da802de0bf444ee
Hit “Execute”, the “Loading” sign may spin for a few minutes while the wallet is created… once the wallet has been created the “Response Body” will return the mnemonic you have just used.. we now have a wallet!!
HOWEVER IT IS NOT LOADED INTO THE NODE JUST YET!
This is where we will now jump back out and to configure the node to automatically load the wallet and automatically start staking when it first loads.
AGAIN BACKUP YOUR MNEMONIC AND PASSWORD, MAKE SURE THEY ARE ENCRYPTED AND STORED SOMEWHERE SAFE!

Step 5 - Configure The x42 Daemon

Now we are going to modify the x42.conf file in order to automatically load our wallet and start staking 😊
First things first, lets stop our node by running the following command:
sudo systemctl stop x42node.service 
CD to the following folder and view its contents:
~/.x42node/x42/x42Main ls -lah 
within that folder there should be 2 files you are interested in:
-rw-r--r-- 1 darthnoodle darthnoodle 18K Jan 28 16:01 TestWallet.wallet.json -rw-rw-r-- 1 darthnoodle darthnoodle 3.1K Jan 24 15:25 x42.conf 
So TestWallet.wallet.json is our physical wallet that will be loaded, but for right now we want to modify the x42.conf file.. fire up your favourite text editor (if you use VI you’re a masochist)..
nano x42.conf 
The area we are interested in is the following:
####Miner Settings#### #Enable POW mining. #mine=0 #Enable POS. #stake=0 #The address to use for mining (empty string to select an address from the wallet). #mineaddress= #The wallet name to use when staking. #walletname= #Password to unlock the wallet. #walletpassword= #Maximum block size (in bytes) for the miner to generate. #blockmaxsize=1000000 #Maximum block weight (in weight units) for the miner to generate. #blockmaxweight=1000000 #Enable splitting coins when staking. #enablecoinstakesplitting=1 #Minimum size of the coins considered for staking, in satoshis. #minimumstakingcoinvalue=10000000 #Targeted minimum value of staking coins after splitting, in satoshis. #minimumsplitcoinvalue=10000000000 
Uncomment (remove the #) of the following lines and change their value:
stake=1 (changed to 1) walletname=TestWallet (changed to our Wallet Name) walletpassword=password123 (changed to the wallet password) 
save the file and exit back to the command prompt, now we shall restart the node with the following command:
sudo systemctl status x42node.service 
now the wallet is automatically loaded and ready for action!
YES I KNOW YOU HAVE PUT YOUR PASSWORD IN CLEARTEXT, THIS IS WHERE YOU SHOULD HARDEN YOUR BOX. IF THEY CAN GET TO THE POINT WHERE THEY CAN READ YOUR CONF FILE THEY CAN JUST GRAB YOUR WALLET AND BRUTEFORCE THE PASSWORD.
You can check its loaded by going back to the API and executing the following command:
/Dashboard 
Or execute the following command on the NODE:
curl -X GET "http://127.0.0.1:42220/Dashboard" -H "accept: application/json" 
both will produce the same output, if you scroll to the bottom you should see something like this:
======Wallets====== TestWallet/account 0, Confirmed balance: 0.00000000 Unconfirmed balance: 0.00000000 
This means the wallet is loaded and ready for action!!

Step 6 - Get Addresses

Next thing you are probably going to want is a receive address and to check the balance and TX history.. so lets start with getting an address!
Go to the following API:
/api/Wallet/unusedaddress 
Fill in the Wallet name which is “TestWallet” (in this example) and “account 0” (which is the first/default account):
https://preview.redd.it/ayri5jk0c8d21.jpg?width=602&format=pjpg&auto=webp&s=2d16bbb78da49c0125d24d0834c9454d702cb7a1
Hit execute and you should have an x42 address within the “Response Body”:

https://preview.redd.it/tmc495j3c8d21.jpg?width=349&format=pjpg&auto=webp&s=b00177f66a9e24c980d3c6d4e532a33cbf3fb0bc
BOOM… ok now we can receive funds! 😊

Step 7 - Check TX History

Go to the API and the following call:
/api/Wallet/history 
The 2 fields we are most concerned about are:
https://preview.redd.it/lw194af6c8d21.jpg?width=602&format=pjpg&auto=webp&s=27e264bc008879355ff5b9c50a0a5cb06f16e960
Input the name of the wallet and account you want to view the history of, then hit execute. The other fields can be black. This will return a list of TX’s that the wallet has received:
This should look like the following:
https://preview.redd.it/x1hgargac8d21.jpg?width=585&format=pjpg&auto=webp&s=4fd25f22772f4bcec523a6e82b321ae8146a2c75
There is an easier way of doing this, that doesn’t require you to be connected to your node.. especially if your only interested in viewing your staking rewards… THE EXPLORER!
Access the following URL:
https://explorer.x42.tech/address/ 
this will allow you to easily see all TX’s associated with this address, it should look something like below:
https://preview.redd.it/e480grscc8d21.jpg?width=601&format=pjpg&auto=webp&s=0f8a9ebc7944dfcc73f7df659bd839bb983ba90c
… and your done! By this point your node should be running, staking and you have an easy way to view transactions/rewards 😊


Step 8 - Connect The UI Wallet To A Headless Node

The UI utilises a combination of technologies, however the important part is the code attempts to access the x42 Node API on 127.0.0.1:42220.
So you have 2 options here:
  1. Download the Wallet Installers
  2. Compile The UI Yourselves
Pick the option that best suits you given the pros/cons below:
Option 1 - Pro's/Cons
Pro's
  • If you use the installer, its quick and easy.
Cons
  • This also installs an x42 node on your system which runs when the UI loads.
  • If you dont setup an SSH tunnel before running the wallet the local node will bind to the port and the tunnel wont work.. you will be connecting to the local wallet!!
Option 2 - Pro's/Cons
Pro's
  • You only run the UI, the x42 node is not installed
  • you dont have a superfluous node running, downloading blocks on your local system
Cons
  • Time Consuming
  • Have to download dependencies and manually compile the code

Pre-Requirement - Needed For Both Options!!
As previously mentioned, the UI attempts to access the API's on 127.0.0.1:42220, however our node isnt running on our local system. IN ORDER TO GET IT WORKING YOU NEED TO HAVE AN SSH TUNNEL, THIS TUNNEL NEEDS TO REMAIN ACTIVE WHENEVER YOU WANT TO ACCESS THE WALLET.
this can be done by executing the following command:
ssh -L 42220:localhost:42220 @ 


Step 8 - [Option 1 - Use Installer] Connect The UI Wallet To A Headless Node

Download and install the UI/Wallet & Node from:
https://github.com/x42protocol/X42-FullNode-UI/releases

DO NOT RUN THE WALLET YET!
Those of us who dont want to run a local node and just want the UI, execute the following commands (as an administrator):
cd C:\Program Files\x42 Core\resources\daemon\ ren x42.x42D.exe x42.x42D.exe.bak 
The above is with Windows, if your are in *NIX then locate the daemon and rename it (i will update how to do that/where to find it shortly)
Setup the SSH tunnel as outlined above, Execute the wallet and it will load, however you will see an exception:

https://preview.redd.it/9os5h8q7scd21.jpg?width=550&format=pjpg&auto=webp&s=ac45ed7bc987917142075c61fb486e7d71f820d1
dont worry, this is just the wallet trying to execute/start the x42 node which we dont want, if all works according to plan.. after you click "OK" you should now be presented with the wallet UI and have the option to select what wallet you would like to load:

https://preview.redd.it/hnyt0b4mscd21.jpg?width=958&format=pjpg&auto=webp&s=a47df710a804375d8363ffcd77d1ede2862b9b4d
... DONE!

Step 8 - [Option 2 - Build/Compile UI Only] Connect The UI Wallet To A Headless Node ###BROKEN

THIS IS STILL A WORK IN PROGRESS, THE ELECTRON BUILD DOESNT WANT TO COMPILE BECAUSE SOME CODE IS MANGLED SOMEWHERE!!

Ok, this is the fun bit! .. we need to install the following dependencies. these instructions are written for a Windows system but it should be easy enough to perform the same on a *NIX system.
Install Dependencies
In order to build the wallet UI, you need to install the following components:
  • git
  • NodeJS
  • Electron Builder
First thing you need to do is install git, so download and install the package:
https://gitforwindows.org/
Next you need to install NodeJS, download and install the package:
https://nodejs.org/en/download/
Next we need to install the node package manager:
npm install npx –verbose 
next we need to make sure we have Visual Studio build tools and Python (2.7) installed, this can be done by executing the following (AS AN ADMINISTRATOR!):
npm install -g --production windows-build-tools 
this will install the necessary tools to build C#/C++ code and python 2.7, this could take some time! When its done you should have something like the following;

https://preview.redd.it/5ekfy5g1kcd21.jpg?width=490&format=pjpg&auto=webp&s=f65196dee6f78f2ececec5ee8b5df1044d68f635

Build & Install - Windows
Create a temp folder to navigate to a folder where you want to download the GIT repository, execute the following command:
git clone https://github.com/x42protocol/X42-FullNode-UI.git 
This will clone the repository into the folder, it will only clone the wallet and not the Node source! now lets CD into the folder and build the UI:
cd X42-FullNode-UI\FullNode.UI npm install 
This will download and install all dependencies (can take a while), at the end you should see something like..

https://preview.redd.it/0zfbfxa8kcd21.jpg?width=601&format=pjpg&auto=webp&s=438d072a6ab2bc7a3d84a8dfe773968acc762bc7
Now the stock UI has a number of third-party libraries which contain some vulnerabilities, being a security conscious person, ive also run:
npm audit fix 
when this is done, we have fixed most of the package vulnerabilities 😊 We also get a complaint about the typescript library being too new for the version of angular in use, so run the following command to install the additional dependency:
npm install [email protected]">=2.4.2 <2.7.0" 
now its time to build the UI, execute the following:
npm run build:prod 
once complete you should see something like the following..

https://preview.redd.it/56vf9zfckcd21.jpg?width=601&format=pjpg&auto=webp&s=31b72daff9ab5001843cba529a7bd38c76fd099d
Next its time to compile the electron binary, it should be noted that the build/package process utilises AppVoyer which is not installed and if you attempt to build right now you will get the following error:
cannot expand pattern "${productName}-v${version}-setup-${os}-${env.arch}.${ext}": env arch is not defined. 
To fix this we need to modify the build file, this is a quick one liner that can do it:
powershell -Command "(gc electron-builder.json) -replace 'env.arch', 'arch' | Out-File electron-builder.json" 
Essentially the offending line for Windows is..
"artifactName": "${productName}-v${version}-setup-${os}-${env.arch}.${ext}" 
The build cannot resolve “env.arch”, so the above one liner replaces “env.arch” with “arch” which works 😊
execute the following command:
npx electron-builder build --windows --x64 
At present i get the following error, no matter what i do.. and ive ran out of time to go hunting about.. if anyone has any ideas on how to fix then please post in here or message me on discord:

https://preview.redd.it/t66rtuqdtcd21.jpg?width=918&format=pjpg&auto=webp&s=a3f1a5ff682586348909c67645ca7ae9454922ff


Happy staking!

If you found this post helpful, then buy me a beer and send a donation to XQXeqrNFad2Uu7k3E9Dx5t4524fBsnEeSw
submitted by D4rthNoodle to x42 [link] [comments]

Livenet; Bitcore Machine

Livenet; Bitcore Machine
https://preview.redd.it/ck89uk2tlzc21.png?width=1440&format=png&auto=webp&s=b3220459edf196aeed7a9e35c93b1ae50ac21570
Livenet is an optical blockchain visualization page where you can see the Bitcore Blockchain with 3D animation live.
Livenet displays any block and any transaction (TXID) in different sizes. The idea is to visually show the Bitcore blockchain for educational purpose. Let’s have a look at a few important items in detail. Read more
Website: https://bitcore.cc/livenet/
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https://preview.redd.it/t3jkx77ulzc21.png?width=1440&format=png&auto=webp&s=2be6f391e3150825c86c3e436fa5ab483c1db784
Web: Official | News | Coin Specs | Roadmap | White Paper | Ecosystem | Network Update | Community | FAQ | Blog | Team Wallets Mac QT | Windows QT | Win + Block | Electrum Portable | Linux QT | TSBW Coinomi iOS | Android |Win | Mac | Linux ZelCore Mac | Win | Portable | Linux | iOSAndroid Jaxx Liberty iOS | Android | Chrome extension | Mac OSX | Win x64/x86 Trezor Web Ellipal Web Anchor Web Magnum Web Exchanges: Bit Z | Cryptopia | HitBTC | Exrates | Crypto Bridge | Coinexchange | Bitexlive | Bitibu | Trade Satoshi | PayCML| InstaSwap | CryptoChangeCrex24 | Bitsten | BarterDEX | EasyRabBit | InstaSwap | Ktrade | Nova | SimpleSwap Services: Livingroom of Satoshi | Kamoney | Cryptonaut | EasyRabBit.net | LuckyGames.io | Games4coins.com | PayByte | BitBase | AtomicPay | Cryptocrown Block Explorers: InsightAPI | Crypto ID | Liivenet Mining Pools: Bitcorepool | Yiimp | Suprnova | Chainworks | Umine | Ant Mine Pool | Coin Miners | BSOD | BTXpool | Minersport | Omegapool | PoolGPU Market Info: CoinMarketCap | World Coin Index | Cryptocompare Source: Github | DgCarlosLeon Devs Limxtec
submitted by dgcarlosleon to bitcore_btx [link] [comments]

Bitcore has been integrated into Magnum Wallet

Bitcore has been integrated into Magnum Wallet
https://preview.redd.it/9hrehazz1ma21.png?width=1440&format=png&auto=webp&s=77c302d7d31018763c72d1bf25c8668d08b6fdd6
We are happy to announce that Bitcore has been integrated into the Magnum Wallet, where you can store your BITCORE BTX coins. Here we leave you the official Magnum site for you to visit and enjoy the benefits of this great Wallet.

Magnum Wallet
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Author: LIMXTEC Team Email: [email protected]
https://preview.redd.it/r5uiurx22ma21.png?width=1440&format=png&auto=webp&s=a2019e21fbd3b011e37caee351ab62405870611a
Web: Official | News | Coin Specs | Roadmap | White Paper | Ecosystem | Network Update | Community | FAQ | Blog | Team Wallets Mac QT | Windows QT | Win + Block | Electrum Portable | Linux QT | TSBW Coinomi iOS | Android |Win | Mac | Linux ZelCore Mac | Win | Portable | Linux | iOSAndroid Jaxx Liberty iOS | Android | Chrome extension | Mac OSX | Win x64/x86 Trezor Web Ellipal Web Anchor Web Magnum Web Exchanges: Bit Z | Cryptopia | HitBTC | Exrates | Crypto Bridge | Coinexchange | Bitexlive | Bitibu | Trade Satoshi | PayCML| InstaSwap | CryptoChangeCrex24 | Bitsten | BarterDEX | EasyRabBit | InstaSwap | Ktrade | Nova | SimpleSwap Services: Livingroom of Satoshi | Kamoney | Cryptonaut | EasyRabBit.net | LuckyGames.io | Games4coins.com | PayByte | BitBase | AtomicPay | Cryptocrown Block Explorers: InsightAPI | Crypto ID | Liivenet Mining Pools: Bitcorepool | Yiimp | Suprnova | Chainworks | Umine | Ant Mine Pool | Coin Miners | BSOD | BTXpool | Minersport | Omegapool | PoolGPU Market Info: CoinMarketCap | World Coin Index | Cryptocompare Source: Github | DgCarlosLeon Devs Limxtec
submitted by dgcarlosleon to bitcore_btx [link] [comments]

Get 25% discount Ellipal Wallet

Get 25% discount Ellipal Wallet
https://preview.redd.it/kroo1wt32fa21.png?width=1440&format=png&auto=webp&s=4a4b471f020ea0cbb5e2aea3ece421120a7aedb5
Order @ellipalwallet #hardware #wallet with this link: https://order.ellipal.com/discount/BTX, and get 25% discount. Moreover, including free customized #Bitcore $BTX logo on backside in January. It is completely connection free, mobile supported and fast!
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https://preview.redd.it/3bvp0j052fa21.png?width=1440&format=png&auto=webp&s=ad021411c945e275e4d673ea51dcfebb7b5d4398
Web: Official | News | Coin Specs | Roadmap | White Paper | Ecosystem | Network Update | Community | FAQ | Blog | Team Wallets Mac QT | Windows QT | Win + Block | Electrum Portable | Linux QT | TSBW Coinomi iOS | Android |Win | Mac | Linux ZelCore Mac | Win | Portable | Linux | iOSAndroid Jaxx Liberty iOS | Android | Chrome extension | Mac OSX | Win x64/x86 Trezor Web Ellipal Web Anchor Web Exchanges: Bit Z | Cryptopia | HitBTC | Exrates | Crypto Bridge | Coinexchange | Bitexlive | Bitibu | Trade Satoshi | PayCML| InstaSwap | CryptoChangeCrex24 | Bitsten | BarterDEX | EasyRabBit | InstaSwap | Ktrade | Nova | SimpleSwap Services: Livingroom of Satoshi | Kamoney | Cryptonaut | EasyRabBit.net | LuckyGames.io | Games4coins.com | PayByte | BitBase | AtomicPay | Cryptocrown Block Explorers: InsightAPI | Crypto ID | Liivenet Mining Pools: Bitcorepool | Yiimp | Suprnova | Chainworks | Umine | Ant Mine Pool | Coin Miners | BSOD | BTXpool | Minersport | Omegapool | PoolGPU Market Info: CoinMarketCap | World Coin Index | Cryptocompare Source: Github | DgCarlosLeon Devs Limxtec
submitted by dgcarlosleon to bitcore_btx [link] [comments]

Lore v2 QT on Raspberry Pi

Hello,
 
To follow up to mindphuk's excellent piece on building the headless client on Raspberry Pi (https://www.reddit.com/blackcoin/comments/6gkjrw/wip_blackpi_a_stake_device_based_on_raspberry/), I thought if anyone was interested I'd show you how to get the full QT version running on the Pi on the Jessie with Pixel desktop. This works and has been soak tested for several days now on a standard Raspberry Pi 3. I have since added some coins and it stakes a handful of times a day.
 
Running staking Lore clients paves the way for some of the future use cases of BLK utilising the Bitcoin 0.12 (and newer) core tech, including colored coins. So I'm going to leave this one going indefinitely to kickstart the number of Lore clients staking. It's certainly not mandatory but it will be good in the longer term to have a nice distribution of Lore staking clients.
 
The cross-compile which lets you create binaries for multiple platforms didn't work for the QT version on the Pi, so there is more to do than just running the binary unfortunately, as below. There are folks working on some much cleaner solutions than this for the Pi, with a custom front end, and where you won't have to do any mucking about. That is coming soon. In the meantime, if you enjoy a fiddle with such things, here's how to get this QT client working on your Pi.
 
These instructions assume you are starting from scratch with a completely blank OS.
 
Download Jessie with Pixel from: http://downloads.raspberrypi.org/raspbian/images/raspbian-2017-07-05/2017-07-05-raspbian-jessie.zip
 
Note they have since (August 2017) released a version called 'Stretch' which does not work with this guide. I'll see if I can come up with something new for that at some point and link to it here when I have. In the meantime the guide should work with the Jessie image above.
 
Unzip the file and extract the .img file to burn it onto Fresh SD card to boot from (to be safe, use 16GB or larger), using a tool like win32diskimager or Etcher.
 
Assuming you have keyboard/mouse and monitor plugged into your pi, boot it up and the Jessie Desktop will show.
 
Before we do anything else, you should increase the default swap size on the pi, as compiling certain libraries can exhaust the RAM and get stuck otherwise. To do this, launch a Terminal window and type:
 
sudo nano /etc/dphys-swapfile 
 
and Change the CONF_SWAPSIZE from 100 to:
 
CONF_SWAPSIZE=1024 
 
Exit nano with control + x to write out the file.
 
Then, run the following to restart the swapfile manager:
 
sudo /etc/init.d/dphys-swapfile stop sudo /etc/init.d/dphys-swapfile start 
 
Now, launch the browser and download the Lore 2.12 binaries for ARM here: https://mega.nz/#!k2InxZhb!iaLhUPreA7LZqZ-Az-0StRBUshSJ82XjldPsvhGBBH4 (Version with fee fix from 6 September 2017)
 
(If you prefer to compile it yourself instead, it is possible by following the instructions in the original article by Mindphuk just taking into account this is the newer version of the Lore client than when that was written (https://github.com/janko33bd/bitcoin/releases) and the versions of Boost and the Berkeley DB need to be the same as below.)
 
Double click the zip and extract the Lore binary files. Yes, at the moment they are all called 'bitcoin', not 'blackcoin' or 'Lore' - this is because the code derives from a recent bitcoin core implementation so this has not yet been updated. You can place these wherever you like.
 
In the Terminal window, change directory to where you put the binaries, e.g.:
 
cd Downloads/lore-raspberrypi-armv7-jessie-pixel chmod +x * 
 
That marks the binaries as executable.
 
Now, we need the Boost libraries installed for any of the Lore binaries to work. The project was done with Boost 1.62.0. Unfortunately the Jessie repository only goes up to 1.55, so we need to download and build 1.62 manually on the device.
wget https://sourceforge.net/projects/boost/files/boost/1.62.0/boost_1_62_0.tar.gz/download tar -xvzf download cd boost_1_62_0 sudo ./bootstrap.sh sudo ./b2 install 
 
(This will take almost 2 hours. Have a nice cup of tea and a sit down.)
 
When I came to run the binaries, I found they couldn't find Boost. Running this command fixes that:
sudo ldconfig 
 
Now we are going to install the packages which aren't already included in the default OS installation which the binaries need in order to run:
sudo apt-get install qrencode libprotobuf-dev libevent-pthreads-2.0-5 
 
Now we need to install the Berkeley Database version 6.2.23. This is the version Lore v2 uses. Bitcoin still uses 4.8 which is 10 years old! This doesn't take too long.
wget http://download.oracle.com/berkeley-db/db-6.2.23.tar.gz tar -xvzf db-6.2.23.tar.gz cd db-6.2.23/build_unix ../dist/configure --prefix=/usr --enable-compat185 --enable-dbm --disable-static --enable-cxx 
 
I find this next section of the Berkeley instructions worked better just switching to root, which can be fudged by running sudo su before the rest:
sudo su make make docdir=/usshare/doc/db-6.2.23 install chown -v -R root:root /usbin/db_* /usinclude/db{,_185,_cxx}.h /uslib/libdb*.{so,la} /usshare/doc/db-6.2.23 
 
Now we're going to go up a couple of directories to where the binaries were:
cd ../.. 
 
Then run the client!
./bitcoin-qt 
 
And there you have it. Should hopefully end up looking a bit like this: http://imgur.com/a/eEHGa
 
Using the Bootstrap can save a while syncing. Download it at: https://www.reddit.com/blackcoin/comments/6b3imq/blackcoin_bootstrapdat_up_to_block_1631800
 
Place the bootstrap.dat file into the ~/.lore directory.
 
Run ./bitcoin-qt again, it will say 'Importing Blocks' rather than 'Synchronising with Network'. My pi sync'ed fully in about 5-6 hours.
 
If you want peace of mind that Lore will always start on bootup into the Jessie w/Pixel desktop (i.e. after a power cycle), then you need to create a .desktop file in the following place.
sudo nano ~/.config/autostart/Lore.desktop 
 
And in it, enter the following (tailoring the Exec line below to the whereabouts of your bitcoin-qt file):
[Desktop Entry] Name=Blackcoin Lore Comment=Mining without the waste Exec=/home/pi/Downloads/lore-raspberrypi-armv7-jessie-pixel/bitcoin-qt Type=Application Encoding=UTF-8 Terminal=false Categories=None; 
 
Power usage and payback time
 
After a good while leaving it going by itself, the CPU load averages got down to almost zero, all of the time. Idling, the Pi uses a bit less than 3 watts. This means it would take two weeks to use one 1Kw/h of electricity.
 
If you pay e.g. 12.5 cents a unit, that's what you'd expect this to cost to run in a fortnight. That's around $0.25 a month or $3 a year. Green and cheap and helping to secure the BLK network. I paid for the year's worth of electricity in 2 days staking with 25k BLK. Makes mining look silly, huh? ;)
 
Securing your Pi
 
With staking, your wallet needs to be unlocked and as such, the keys to your wallet are on the device. In a clean and newly installed environment as described above, and if you don't allow others to use your device and there is no other software or nasties running on it, there is no real cause for concern. However, there are some basic security precautions you can take.
 
Firstly, if you have enabled SSH and are playing with your pi across your LAN (or worse, the Internet), you should immediately change the password for the default 'pi' user (which is preconfigured to be 'raspberry'). Simply log in as normal, then type:
 
passwd 
 
You'll be prompted to enter the old and the new passwords.
 
Security by default
 
Your Pi is likely, by default, to not be exposed to incoming connections from the outside world because your router is likely generating a private address range for your LAN (192.168.x.x or 10.0.x.x or 172.x.x.x) which means all incoming connections are effectively blocked at the router anyway unless you set up a 'port forward' record to allow packets arriving on certain ports to be forwarded to a specific internal IP address.
 
As for accessing your Pi across the internet, if you have set up a port forward, this likely has security ramifications. Even basic old fashioned protocols have proven in recent times to have uncaught flaws, so it's always advisable to lock down your device as much as possible, and even if you only plan to access the Pi over your LAN, install a firewall to configure this. I used one called ufw, because it's literally an uncomplicated firewall.
 
sudo apt-get install ufw sudo ufw allow from 192.168.0.0/16 to any port 22 sudo ufw --force enable 
 
This allows just port 22 (SSH) to be open on the Pi to any device on my LAN's subnet (192.168.0.x). You can change the above to a single IP address if paranoid, or add several lines, if you want to lock it down to your LAN and a specific external static IP address (e.g. a VPN service you use). To find out what subnet your router uses, just type:
 
ifconfig 
 
and you'll see on the interface you are using (either hard wired or wifi) the 192.168 or 10. or 172. prefix. Change the above rule so it matches the first two octets correctly (e.g. 10.0.0.0/16 if you're on a 10.0. address).
 
You may already use VNC to access your Pi's desktop across your LAN, this uses port 5900. Add a line like above to lock it down to an internal address. It's not a good idea to expose this port to the wider world because those connections are not encrypted and potentially could be subjected to a MITM attack.
 
You can query the status of the firewall like this:
ufw status 
 
And of course, try connecting remotely once you change the rules to see what works. You should consult the official documentation for further options: https://help.ubuntu.com/community/UFW
 
Back up & Recovery
 
There are again many ways to tackle this so I'll just speak about my basic precautions in this regard. Don't take it as a be-all-and-end-all!
 
The wallet.dat file is the key file (literally) containing all the private/public keys and transactions. This can be found in:
 
~/.lore 
 
You can navigate there using Jessie w/Pixel's own file manager or in a terminal window (cd ~/.lore). You can copy this file or, if you'd rather keep a plain text file of all your public and private keys, use the 'dumpwallet' command in the console. In Lore, go to Help > Debug Window > Console and type 'dumpwallet myfilename' where myfilename is the file you want it to spit out with all your keys in it. This file will end up in the same place you launch bitcoin-qt from.
 
The instructions earlier on, when running Lore for the first time intentionally left out encrypting your wallet.dat file because in order for the wallet to stake upon startup, it needs to have a decrypted key already. This isn't perfect, but after a power cycle, it would never stake unless you left it decrypted. So the best practice here is as soon as the wallet.dat file has left your device, i.e. you copy it to a USB stick for example, put it in an encrypted folder or drive (or both).
 
In Windows, one way is to use Bitlocker drive encryption for the entire drive. You should follow the instructions here to encrypt your flash drive before your wallet.dat is on there, and don't forget the password!!
http://infosec.nmsu.edu/instructions-guides/how-to-enable-bitlocker-to-go-for-external-hard-drives-and-usb-flash-drives/
 
On the Mac, I use a software package called Concealer to encrypt files I store on the Mac itself: http://www.belightsoft.com/products/conceale   There are almost certainly free packages with similar functionality, I have just used that one for years.
 
Either way, if you want to just make sure your USB drive is encrypted, you can do so in one-click in Finder before you put the sensitive files on it: http://lifehacker.com/encrypt-a-usb-stick-in-finder-with-a-click-1594798016
 
Note that these disk encryption methods may mean having to access the USB stick on a PC or Mac in order to retrieve the files in the event of a disaster. Be aware this may mean exposing them to more security issues if your computer is in any way compromised or someone nefarious has access to your computer. There are more 'manual' ways of backing up and recovering, such as literally writing down private/public key pairs which this guide doesn't go into, but may suit you better if paranoid about your setup.
 
Recovery
 
The wallet.dat file has everything in it you need to recover your wallet, or if you used 'dumpwallet', the file you saved out has all the keys.
 
Wallet.dat method: Install Lore as normal then replace any auto-generated wallet.dat in ~/.lore directory with your backup. If a lot of time has elapsed and many transactions have occurred since your backup, launch lore with:
./bitcoin-qt -rescan 
 
And if that doesn't do the job, do a full reindex of the blockchain:
 
./bitcoin-qt -reindex 
 
If you used the dumpwallet command, install Lore then place the file containing all the keys that you saved out in the same directory as bitcoin-qt. In Lore, go to Help > Debug Window > Console and type 'importwallet myfilename' where myfilename is that file containing all the keys. The wallet should automatically rescan for transactions at that point and you should be good to go.
 
There are a million ways to do effective security and disaster recovery, but I hope this shows you a couple of basic precautionary ways. There are discussions about better ways to stake without compromising too much security which are happening all the time and developments in this regard will happen in time.
 
In the meantime, feel free to comment with your best practices.
 
submitted by patcrypt to blackcoin [link] [comments]

Bitcoin Mining on Ubuntu - YouTube Cryptocurrency Mining Software Tutorial Series 7 - Futurebit Moonlander 2 on Ubuntu 14.04 OS How to Bitcoin Miner with Ubuntu VPS server 2018 Bitcoin Miner Block erupter Ubuntu tutorial Bitcoin Mining on Ubuntu 18.10 - Bitcoin Mining Software ...

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