Aztec Sequencer Node

This guide will help you set up a Aztec Sequencer Node. For official documentation, check here.

System Requirements

• CPU : 8 Cores
• RAM : 16GB
• Disk : 1 TB

Preparation

Before setting up the Aztec Sequencer Node, make sure you have the following:

Requirement	Details
1. EVM Wallet Private Key	A private key from your Ethereum wallet. Needed to interact with the network. Make sure to keep it safe and never expose it publicly.
2. ETH Sepolia Faucet	You'll need Sepolia ETH to operate the node. • Google Faucet – Free 0.05 ETH • Alchemy Faucet – Free 0.1 ETH (requires 0.001 ETH on Ethereum Mainnet)
3. Sepolia RPC & Beacon RPC	Access to Sepolia RPC and Beacon RPC is required. • Alchemy – Paid Sepolia RPC (Free 100M trial requests) • drpc.org – Free Beacon RPC • Publicnode – Free Sepolia & Beacon RPC

Auto Installer

Paste this script inside screen or tmux.

This script is not updated, please use manual installation.

bash <(wget -qO- https://vault.astrostake.xyz/testnet/aztec/aztec_sequencer_install.sh)

Manual Installation

1. Install Dependencies

apt install curl iptables build-essential git wget lz4 jq make gcc nano automake autoconf tmux htop nvme-cli libgbm1 pkg-config libssl-dev libleveldb-dev tar clang bsdmainutils ncdu unzip libleveldb-dev -y

2. Install Docker

You can skip it if you already have it installed.

apt install apt-transport-https ca-certificates curl software-properties-common -y
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | gpg --dearmor -o /usr/share/keyrings/docker-archive-keyring.gpg
echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.gpg] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable" | tee /etc/apt/sources.list.d/docker.list > /dev/null
apt update
apt-cache policy docker-ce
apt install docker-ce -y
systemctl restart docker
systemctl enable docker

Verify

docker --version

3. Install Aztec

bash -i <(curl -s https://install.aztec.network)

echo 'export PATH="$PATH:/root/.aztec/bin"' >> ~/.bashrc && source ~/.bashrc

Verify Installation

aztec

4. Setup Alpha Testnet

aztec-up latest

5. Run Aztec

Open tmux or screen. In this case i will use tmux

tmux new -s aztec

Configure

--l1-rpc-urls --l1-consensus-host-urls --sequencer.validatorPrivateKey --sequencer.coinbase --p2p.p2pIp

aztec start --node --archiver --sequencer \
  --network alpha-testnet \
  --l1-rpc-urls https://your-sepolia-rpc  \
  --l1-consensus-host-urls https://your-beacon-rpc \
  --sequencer.validatorPrivateKey 0xYourPrivateKey \
  --sequencer.coinbase 0xYourAddress \
  --p2p.p2pIp YOUR_PUBLIC_IP

Usefull Command

Get latest block number

curl -s -X POST -H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","method":"node_getL2Tips","params":[],"id":67}' \
http://localhost:8080 | jq -r ".result.proven.number"

Get Proof

BLOCK_NUMBER=$(curl -s -X POST -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","method":"node_getL2Tips","params":[],"id":67}' \
  http://localhost:8080 | jq -r ".result.proven.number")

curl -s -X POST -H 'Content-Type: application/json' \
  -d "{\"jsonrpc\":\"2.0\",\"method\":\"node_getArchiveSiblingPath\",\"params\":[\"$BLOCK_NUMBER\",\"$BLOCK_NUMBER\"],\"id\":67}" \
  http://localhost:8080 | jq -r ".result"

Check PeerId and search on https://aztec.nethermind.io/

sudo docker logs $(docker ps -q --filter ancestor=aztecprotocol/aztec:latest | head -n 1) 2>&1 | grep -i "peerId" | grep -o '"peerId":"[^"]*"' | cut -d'"' -f4 | head -n 1

Register as Validator

aztec add-l1-validator \
  --l1-rpc-urls RPC_URL \
  --private-key your-private-key \
  --attester your-validator-address \
  --proposer-eoa your-validator-address \
  --staking-asset-handler 0xF739D03e98e23A7B65940848aBA8921fF3bAc4b2 \
  --l1-chain-id 11155111

Cek validator via cast call

curl -L https://foundry.paradigm.xyz | bash
source ~/.bashrc

change YOUR_WALLET_ADDRESS

cast call 0x8d1cc702453fa889f137dbd5734cdb7ee96b6ba0 "getInfo(address)" YOUR_WALLET_ADDRESS --rpc-url https://sepolia.drpc.org

🛡️ Security

To apply a quick security baseline, you can configure your firewall like this:

sudo ufw allow 40400/tcp comment 'Aztec P2P Port'
sudo ufw allow 40400/udp comment 'Aztec P2P Port'
sudo ufw allow 8080/tcp comment 'Aztec RPC Port'

🔐 For a more secure and maintainable setup, check out our Essentials Guide, including SSH key setup, Fail2Ban protection, and a full VPS hardening checklist.