Data Availability Node

Prerequiretes

Hardware	Minimum Spesification
CPU	8 Cores
RAM	16 GB
Disk	1 TB NVMe SSD
Bandwidth	100 Mbps

Installation

Update & Install packages

sudo apt-get update && sudo git apt-get install clang cmake build-essential pkg-config libssl-dev protobuf-compiler llvm llvm-dev -y

Clone the repository

git clone https://github.com/0glabs/0g-da-node.git
cd 0g-da-node

Build the project

cargo build --release

Download necessary parameters

./dev_support/download_params.sh

Generate BLS Private Key (if needed)

cargo run --bin key-gen

Configure the Node

Create a configuration file named config.toml

nano config.toml

log_level = "info"

data_path = "./db/"

# path to downloaded params folder
encoder_params_dir = "params/" 

# grpc server listen address
grpc_listen_address = "0.0.0.0:34000"
# chain eth rpc endpoint
eth_rpc_endpoint = "https://evmrpc-testnet.0g.ai"
# public grpc service socket address to register in DA contract
# ip:34000 (keep same port as the grpc listen address)
# or if you have dns, fill your dns
socket_address = "<your-public-ip>:34000"
prometheus_exporter_address = "0.0.0.0:9090"

# data availability contract to interact with
da_entrance_address = "0x857C0A28A8634614BB2C96039Cf4a20AFF709Aa9" # testnet config and see testnet page for the latest info

# deployed block number of da entrance contract
start_block_number = 940000 # testnet config

# signer BLS private key
signer_bls_private_key = ""
# signer eth account private key
signer_eth_private_key = ""
# miner eth account private key, (could be the same as `signer_eth_private_key`, but not recommended)
miner_eth_private_key = ""

# whether to enable data availability sampling
enable_das = "true"

Key	Function	Used by
signer_bls_private_key	BLS-based signing for consensus	Validators in PoS or BLS-based systems
signer_eth_private_key	Signing transactions or blocks in Ethereum-based systems	Signers in PoA, PoS, or other systems requiring Ethereum signatures
miner_eth_private_key	Receiving mining or validator rewards	Miners or validators earning rewards

Start the Node

./target/release/server --config config.toml