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README.md

Electroneum Pool (node-cryptonote-pool)

High performance Node.js (with native C addons) mining pool for CryptoNote based coins such as Electroneum, Monero, Bytecoin, QuazarCoin, HoneyPenny, etc.. Comes with lightweight example front-end script which uses the pool's AJAX API.

Table of Contents

Features

  • TCP (stratum-like) protocol for server-push based jobs
    • Compared to old HTTP protocol, this has a higher hash rate, lower network/CPU server load, lower orphan block percent, and less error prone
  • IP banning to prevent low-diff share attacks
  • Socket flooding detection
  • Payment processing
    • Splintered transactions to deal with max transaction size
    • Minimum payment threshold before balance will be paid out
    • Minimum denomination for truncating payment amount precision to reduce size/complexity of block transactions
  • Detailed logging
  • Ability to configure multiple ports - each with their own difficulty
  • Variable difficulty / share limiter
  • Share trust algorithm to reduce share validation hashing CPU load
  • Clustering for vertical scaling
  • Modular components for horizontal scaling (pool server, database, stats/API, payment processing, front-end)
  • Live stats API (using AJAX long polling with CORS)
    • Currency network/block difficulty
    • Current block height
    • Network hashrate
    • Pool hashrate
    • Each miners' individual stats (hashrate, shares submitted, pending balance, total paid, etc)
    • Blocks found (pending, confirmed, and orphaned)
  • An easily extendable, responsive, light-weight front-end using API to display data
  • Worker login validation (make sure miners are using proper wallet addresses for mining)

Community / Support

Pools Using This Software

Usage

Requirements

  • A non root user. To intall & run the pool, you should do so as a user that is NOT root. Running as root will cause issues.
  • Coin daemon electroneum repo
    • To compile the coin you'll need several packages as detailed in the repo's readme. A quick one line command is below:
    • sudo apt install build-essential cmake pkg-config libboost-all-dev libssl-dev libunbound-dev
  • NVM to install v0.10.48. Follow the instructions for installing nvm (Node Version Manager). Then type nvm install 0.10.48. Once finished, type nvm use 0.10.48.
  • Redis key-value store v2.6+ (follow these instructions)
  • libssl required for the node-multi-hashing module
    • For Ubuntu: sudo apt-get install libssl-dev
  • Boost is required for the cryptonote-util module
    • For Ubuntu: sudo apt-get install libboost-all-dev
  • Screen - for running the different parts of the pool in the background. This may come pre-installed on some systems.
    • For Ubuntu: sudo apt-get install screen
    • Usage:
      screen -S daemond <--- Use to run the daemond
      screen -S rpc <---- Use to run rpc
      screen -S website < --- use to run website
      screen -list <---- List screens
      screen -x website <--- reconnect to screen website
      CTRL + a then CTRL + d <----- detatch from a screen
Node.js v0.10.48
  • This version of node.js is required to run the cryptonight-util and node-multi-hashing modules. These modules were created by other users and currently only work with Node.js 0.10.48. Please ensure that you have this version of node.js installed before opening an issue asking for help.
Seriously

Those are legitimate requirements. If you use a different version of Node.js or Redis that may come with your system package manager then you will have problems. Follow the linked instructions to get the last stable versions.

Redis security warning: be sure firewall access to redis - an easy way is to include bind 127.0.0.1 in your redis.conf file. Also it's a good idea to learn about and understand software that you are using - a good place to start with redis is data persistence.

1) Downloading & Installing

Clone the repository and run npm update for all the dependencies to be installed:

git clone https://github.com/electroneum/electroneum-pool.git pool
cd pool
npm update

2) Daemon & Wallet

Firstly, You'll need to download & compile the daemon source code found here

Secondly, Start a screen session, e.g screen -S daemon. Then run ./electroneumd wherever the compiled binaries are. This will download the blockchain. You'll need to wait until you're fully synced before continuing.

Thirdly, Once synced you'll need to create a wallet. Detatch from the screen session using CTRL + A, CTRL + D (This works for me on putty). Open up another screen session, e.g screen -S wallet. Then run ./electroneum-wallet-cli wherever the compiled binaries are, This will take your through creating a wallet. Once generated, type exit to close the wallet.

Lastly you need to start the wallet RPC server which makes the payments to your miners. This can be started using ./electroneum-wallet-rpc --wallet-file walletfilename --password walletfilepassword --rpc-bind-port 26969 --disable-rpc-login

walletfilename & walletfilepassword are what you supplied when generating the wallet. You can change the port, just remember to change it in the config.json file.

[Security Warning]We strongly recommend that you transfer funds out of this wallet regularly. This way, if your server is comprimised you won't lose all your profits. Bear in mind you'll need to leave enough to pay any outstanding payments to miners.

3) Configuration

Warning for Cryptonote coins other than Electroneum: this software may or may not work with any given cryptonote coin. Be wary of altcoins that change the number of minimum coin units because you will have to reconfigure several config values to account for those changes. Unless you're offering a bounty reward - do not open an issue asking for help getting a coin other than electroneum working with this software.

Copy the config_example.json file to config.json then overview each options and change any to match your preferred setup.

Explanation for each field:

{
    "coin": "electroneum",
    "symbol": "ETN",
    "logging": {
        "files": {
            "level": "info",
            "directory": "logs",
            "flushInterval": 5
        },

        "console": {
            "level": "info",
            "colors": true
        }
    },
    "poolServer": {
        "enabled": true,
        "clusterForks": "auto",
        "poolAddress": "WALLETADDRESSHERE",
        "blockRefreshInterval": 1000,
        "minerTimeout": 900,
        "ports": [
            {
                "port": 3333,
                "difficulty": 100,
                "desc": "Low end hardware"
            },
            {
                "port": 5555,
                "difficulty": 2000,
                "desc": "Mid range hardware"
            },
            {
                "port": 7777,
                "difficulty": 10000,
                "desc": "High end hardware"
            }
        ],
        "varDiff": {
            "minDiff": 2,
            "maxDiff": 100000,
            "targetTime": 100,
            "retargetTime": 30,
            "variancePercent": 30,
            "maxJump": 100
        },
        "shareTrust": {
            "enabled": true,
            "min": 10,
            "stepDown": 3,
            "threshold": 10,
            "penalty": 30
        },
        "banning": {
            "enabled": true,
            "time": 600,
            "invalidPercent": 25,
            "checkThreshold": 30
        },
        "slushMining": {
            "enabled": false,
            "weight": 300,
            "lastBlockCheckRate": 1
        }
    },
    "payments": {
        "enabled": true,
        "interval": 600,
        "maxAddresses": 10,
        "mixin": 0,
        "transferFee": 1,
        "minPayment": 10000,
        "denomination": 100
    },
    "blockUnlocker": {
        "enabled": true,
        "interval": 30,
        "depth": 20,
        "poolFee": 1.8,
        "devDonation": 0.1,
        "coreDevDonation": 0.1
    },
    "api": {
        "enabled": true,
        "hashrateWindow": 600,
        "updateInterval": 3,
        "port": 8117,
        "blocks": 30,
        "payments": 30,
        "password": "test"
    },
    "daemon": {
        "host": "127.0.0.1",
        "port": 26968
    },
    "wallet": {
        "host": "127.0.0.1",
        "port": 26969
    },
    "redis": {
        "host": "127.0.0.1",
        "port": 6379,
        "auth": null
    }
}

4) [Optional] Configure cryptonote-easy-miner for your pool

Your miners that are Windows users can use cryptonote-easy-miner which will automatically generate their wallet address and stratup multiple threads of simpleminer. You can download it and edit the config.ini file to point to your own pool. Inside the easyminer folder, edit config.init to point to your pool details

pool_host=example.com
pool_port=5555

Rezip and upload to your server or a file host. Then change the easyminerDownload link in your config.json file to point to your zip file.

5) Start the pool

node init.js

The file config.json is used by default but a file can be specified using the -config=file command argument, for example:

node init.js -config=config_backup.json

This software contains four distinct modules:

  • pool - Which opens ports for miners to connect and processes shares
  • api - Used by the website to display network, pool and miners' data
  • unlocker - Processes block candidates and increases miners' balances when blocks are unlocked
  • payments - Sends out payments to miners according to their balances stored in redis

By default, running the init.js script will start up all four modules. You can optionally have the script start only start a specific module by using the -module=name command argument, for example:

node init.js -module=api

Example screenshot of running the pool in single module mode with tmux.

6) Host the front-end

Simply host the contents of the website_example directory on file server capable of serving simple static files.

Edit the variables in the website_example/config.js file to use your pool's specific configuration. Variable explanations:

/* Must point to the API setup in your config.json file. */
var api = "http://poolhost:8117";

/* Minimum units in a single coin, for Electroneum its 100. */
var coinUnits = 100;

/* Pool server host to instruct your miners to point to.  */
var poolHost = "poolhost.com";

/* IRC Server and room used for embedded KiwiIRC chat. */
var irc = "irc.freenode.net/#electroneum";

/* Contact email address. */
var email = "support@poolhost.com";

/* Market stat display params from https://www.cryptonator.com/widget - Not used for Electroneum pool */
var cryptonatorWidget = ["XMR-BTC", "XMR-USD", "XMR-EUR", "XMR-GBP"];

/* Download link to cryptonote-easy-miner for Windows users. */
var easyminerDownload = "https://github.com/zone117x/cryptonote-easy-miner/releases/";

/* Used for front-end block links. */
var blockchainExplorer = "https://blockexplorer.electroneum.com/block/";

/* Used by front-end transaction links. */
var transactionExplorer = "https://blockexplorer.electroneum.com/tx";

7) Customize your website

The following files are included so that you can customize your pool website without having to make significant changes to index.html or other front-end files thus reducing the difficulty of merging updates with your own changes:

  • custom.css for creating your own pool style
  • custom.js for changing the functionality of your pool website

Then simply serve the files via nginx, Apache, Google Drive, or anything that can host static content.

SSL

You can configure the API to be accessible via SSL using various methods. Find an example for nginx below:

  • Inside your SSL Listener add the following:
location /json_rpc {
    proxy_pass http://127.0.0.1:26968/json_rpc;
}

location ~ ^/api/(.*) {
    proxy_pass http://127.0.0.1:8117/$1$is_args$args;
}

By adding this you will need to make your api variable in the website_example/config.js include the /api. For example:
var api = "http://poolhost/api";

You no longer need to include the port in the variable because of the proxy connection.

Upgrading

When updating to the latest code its important to not only git pull the latest from this repo, but to also update the Node.js modules, and any config files that may have been changed.

  • Inside your pool directory (where the init.js script is) do git pull to get the latest code.
  • Remove the dependencies by deleting the node_modules directory with rm -r node_modules.
  • Run npm update to force updating/reinstalling of the dependencies.
  • Compare your config.json to the latest example ones in this repo or the ones in the setup instructions where each config field is explained. You may need to modify or add any new changes.

Donations

  • ETN: etnkCFXeExRaBhbDNq66TQ3rF9XSkMreei8t1jXfT2ndgY6bnsNEUtEKbEhba3YHk2CuPCpxZFrGNcAJ9Lv22ACY7eapPgQtNb
  • XMR: 48rB9X6ygZQ4uNBSKJP3MKU9iFK87e8vejEi762eNdTPB61A9VayUnL75HHi2SER3gf5i9PXpiS2kiCwDyanvNm5S5Aq3WF

Credits

  • LucasJones - Co-dev on this project; did tons of debugging for binary structures and fixing them. Pool couldn't have been made without him.
  • surfer43 - Did lots of testing during development to help figure out bugs and get them fixed
  • wallet42 - Funded development of payment denominating and min threshold feature
  • Wolf0 - Helped try to deobfuscate some of the daemon code for getting a bug fixed
  • Tacotime - helping with figuring out certain problems and lead the bounty for this project's creation

License

Released under the GNU General Public License v2

http://www.gnu.org/licenses/gpl-2.0.html