snarkOS

Table of Contents

1. Overview

snarkOS is a decentralized operating system for private applications. It forms the backbone of Aleo and enables applications to verify and store state in a publicly verifiable manner.

2. Build Guide

2.1 Requirements

The following are minimum requirements to run an Aleo node: - CPU: 16-cores (32-cores preferred) - RAM: 16GB of memory (32GB preferred) - Storage: 128GB of disk space - Network: 50 Mbps of upload and download bandwidth

Please note to run an Aleo mining node that is competitive, the machine will require more than these requirements.

2.2 Installation

Before beginning, please ensure your machine has Rust v1.56+ installed. Instructions to install Rust can be found here.

Start by cloning the snarkOS Github repository: git clone https://github.com/AleoHQ/snarkOS.git --depth 1

Next, move into the snarkOS directory: cd snarkOS

[For Ubuntu users] A helper script to install dependencies is available. From the snarkOS directory, run: ./testnet2_ubuntu.sh

3a. Run an Aleo Client Node

Start by following the instructions in the Build Guide.

Next, to start a client node, from the snarkOS directory, run: ./run-client.sh

3b. Run an Aleo Mining Node

Start by following the instructions in the Build Guide.

Next, to generate an Aleo miner address, run: snarkos experimental new_account or from the snarkOS directory, run: cargo run --release -- experimental new_account This will output a new Aleo account in the terminal.

Please remember to save the account private key and view key. The following is an example output: ``` Attention - Remember to store this account private key and view key.

Private Key APrivateKey1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx <-- Save Me View Key AViewKey1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx <-- Save Me Address aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx <-- Use Me For The Next Step ```

Next, to start a mining node, from the snarkOS directory, run: ./run-miner.sh When prompted, enter your Aleo miner address: Enter your Aleo miner address: aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Mining Report

After the mining node has booted up, a periodic report is provided with the status of mined blocks: INFO Mining Report (confirmed_blocks = 1, pending_blocks = 5, miner_address = aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx) This report can also be queried after the mining node has already ran, by running cargo run --release -- miner stats aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx in the snarkOS directory, or snarkos miner stats aleo1xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx.

4. Testnet2 FAQs

1. My node is unable to compile.

2. My node is unable to connect to peers on the network.

3. I can't generate a new address ###

4. Can I coordinate mining across multiple machines/instances of snarkOS? ###

5. Command Line Interface

To run a node with custom settings, refer to the full list of options and flags available in the snarkOS CLI.

The full list of CLI flags and options can be viewed with snarkos --help: ``` snarkos The Aleo Team hello@aleo.org

USAGE: snarkos [FLAGS] [OPTIONS] [SUBCOMMAND]

FLAGS: --display If the flag is set, the node will render a read-only display -h, --help Prints help information --norpc If the flag is set, the node will not initialize the RPC server -V, --version Prints version information

OPTIONS: --connect Specify the IP address and port of a peer to connect to --dev Enables development mode, specify a unique ID for the local node --miner Specify this as a mining node, with the given miner address --network Specify the network of this node [default: 2] --node Specify the IP address and port for the node server [default: 0.0.0.0:4132] --operator Specify this as an operating node, with the given operator address --pool Specify the pool that a prover node is contributing to --prover Specify this as a prover node, with the given prover address --rpc Specify the IP address and port for the RPC server [default: 0.0.0.0:3032] --password Specify the password for the RPC server [default: pass] --username Specify the username for the RPC server [default: root] --verbosity Specify the verbosity of the node [options: 0, 1, 2, 3] [default: 2]

SUBCOMMANDS: clean Removes the ledger files from storage experimental Experimental features help Prints this message or the help of the given subcommand(s) miner Miner commands and settings update Updates snarkOS to the latest version ```

6. Development Guide

In one terminal, start the first node by running: cargo run --release -- --dev 1 --node 0.0.0.0:4135 --rpc 0.0.0.0:3035 --miner aleo1d5hg2z3ma00382pngntdp68e74zv54jdxy249qhaujhks9c72yrs33ddah

After the first node starts, in a second terminal, run: cargo run --release -- --dev 2

We welcome all contributions to snarkOS. Please refer to the license for the terms of contributions.

7. License

License: GPL v3