💻Baremetal

Authors: [ Ankur | Dapplooker]

System Requirements

CPU	OS	RAM	DISK
8 vCPU	Ubuntu 22.04	16 GB	1 TB (SSD)

The node has a size of 585 GB as of March 14th, 2025.

Pre-requisite

Before starting, clean the setup then update and upgrade. Install following:

• Git

• Go v1.23+

• rustc

• make

• just

• op-node

• op-reth

• jq

• Ethereum Sepolia L1 RPC URL

• L1 Consensus Layer Beacon URL

Before you start, make sure that you have your own synced Ethereum Sepolia L1 RPC URL (Ethereum not base ) & L1 Consensus Layer Beacon endpoint (e.g. Lighthouse Sepolia) ready.

Installation Command

sudo apt update -y && sudo apt upgrade -y && sudo apt auto-remove -y
sudo apt install -y git make just wget gcc pkg-config libusb-1.0-0-dev libudev-dev jq gcc g++ curl libssl-dev screen apache2-utils build-essential pkg-config

Install Rustc

curl --proto '=https' --tlsv1.3 https://sh.rustup.rs -sSf | sh # Follow the prompt instruction 
rustc --version #Verifying the installation

Install Op-node

git clone https://github.com/ethereum-optimism/optimism.git
cd optimism/op-node
just VERSION=v1.12.1 op-node # build op-node
cp ./bin/op-node /usr/bin #Placing op-node binary in /usr/bin
op-node -v #Verify version 

Version (v1.12.1) may change in future look for op-node latest version https://github.com/ethereum-optimism/optimism/releases?q=op-node&expanded=true

Install Op-reth

git clone https://github.com/paradigmxyz/reth.git
cd reth
make build-op # build op-reth must install/upgrade dependencies
cp ./target/release/op-reth /usr/bin #Placing op-reth binary in /usr/bin
op-reth -V # Verify Version 

Setting up Firewall

Set explicit default UFW rules

sudo ufw default deny incoming
sudo ufw default allow outgoing

Allow SSH

sudo ufw allow 22/tcp
sudo ufw allow 80
sudo ufw allow 443
sudo ufw allow 8545
sudo ufw allow 5052

Allow Remote connection

sudo ufw allow from ${REMOTE.HOST.IP} to any port 8545

Enable Firewall

sudo ufw enable

Setup Instructions

1

Cloning Base node repository

git clone https://github.com/base/node.git
mv node /mnt/base-sepolia
cd base-sepolia

2

Creating op-node service file

echo "[Unit]
Description=Optimistic Node Client
After=network.target

[Service]
User=root
Environment=HOME="/mnt/base-sepolia"
Environment=OP_GETH_GENESIS_FILE_PATH="/mnt/base-sepolia/node/sepolia/genesis-l2.json"
Environment=OP_GETH_SEQUENCER_HTTP="https://sepolia-sequencer.base.org"
Environment=OP_NODE_L1_ETH_RPC="http://L1_ETH_ENDPOINT_URL"
Environment=OP_NODE_L1_BEACON="http://L1_BEACON_URL"
Environment=OP_NODE_P2P_ADVERTISE_IP=YOUR_PUBLIC_IP_ADDRESS
Environment=OP_NODE_BETA_EXTRA_NETWORKS="true"
Environment=OP_NODE_L2_ENGINE_AUTH="/mnt/base-sepolia/data/engine-auth-jwt"
Environment=OP_NODE_L2_ENGINE_AUTH_RAW="688f5d737bad920bdfb2fc2f488d6b6209eebda1dae949a8de91398d932c517a"
Environment=OP_NODE_L2_ENGINE_RPC="http://localhost:8551"
Environment=OP_NODE_LOG_LEVEL="info"
Environment=OP_NODE_METRICS_ADDR=0.0.0.0
Environment=OP_NODE_METRICS_ENABLED="true"
Environment=OP_NODE_METRICS_PORT=7300
Environment=OP_NODE_NETWORK="base-sepolia"
Environment=OP_NODE_P2P_AGENT="base"
Environment=OP_NODE_P2P_BOOTNODES="enr:-J64QBwRIWAco7lv6jImSOjPU_W266lHXzpAS5YOh7WmgTyBZkgLgOwo_mxKJq3wz2XRbsoBItbv1dCyjIoNq67mFguGAYrTxM42gmlkgnY0gmlwhBLSsHKHb3BzdGFja4S0lAUAiXNlY3AyNTZrMaEDmoWSi8hcsRpQf2eJsNUx-sqv6fH4btmo2HsAzZFAKnKDdGNwgiQGg3VkcIIkBg,enr:-J64QFa3qMsONLGphfjEkeYyF6Jkil_jCuJmm7_a42ckZeUQGLVzrzstZNb1dgBp1GGx9bzImq5VxJLP-BaptZThGiWGAYrTytOvgmlkgnY0gmlwhGsV-zeHb3BzdGFja4S0lAUAiXNlY3AyNTZrMaEDahfSECTIS_cXyZ8IyNf4leANlZnrsMEWTkEYxf4GMCmDdGNwgiQGg3VkcIIkBg"
Environment=OP_NODE_P2P_LISTEN_IP=0.0.0.0
Environment=OP_NODE_P2P_LISTEN_TCP_PORT=9222
Environment=OP_NODE_P2P_LISTEN_UDP_PORT=9222
Environment=OP_NODE_RPC_ADDR=0.0.0.0
Environment=OP_NODE_RPC_PORT=8547
Environment=OP_NODE_SNAPSHOT_LOG="/mnt/base-sepolia/data/Environment=op-node-snapshot-log"
Environment=OP_NODE_VERIFIER_L1_CONFS=4
Environment=OP_NODE_ROLLUP_LOAD_PROTOCOL_VERSIONS="true"
Environment=OP_NODE_L1_TRUST_RPC="true"
Environment=OP_NODE_SYNCMODE="execution-layer"
Environment=OP_GETH_BOOTNODES="enode://548f715f3fc388a7c917ba644a2f16270f1ede48a5d88a4d14ea287cc916068363f3092e39936f1a3e7885198bef0e5af951f1d7b1041ce8ba4010917777e71f@18.210.176.114:30301,enode://6f10052847a966a725c9f4adf6716f9141155b99a0fb487fea3f51498f4c2a2cb8d534e680ee678f9447db85b93ff7c74562762c3714783a7233ac448603b25f@107.21.251.55:30301"
Environment=GETH_DATA_DIR="/mnt/base-sepolia/data"
Environment=VERBOSITY=3
Environment=RPC_PORT=8545
Environment=WS_PORT=8546
Environment=AUTHRPC_PORT=8551
Environment=METRICS_PORT=6060
Environment=HOST_IP=0.0.0.0
Environment=P2P_PORT=30304
Environment=OP_GETH_GCMODE="archive"
Environment=OP_GETH_SYNCMODE="full"
Type=simple
ExecStart=/usr/bin/op-node
TimeoutStopSec=90
Restart=on-failure
RestartSec=10s
StandardOutput=syslog
StandardError=syslog
SyslogIdentifier=op-node

[Install]
WantedBy=multi-user.target"  > /etc/systemd/system/op-node.service

If you don’t know your public IP address curl http://api.ipify.org

• Replace http://L1_ETH_ENDPOINT_URL , http://L1_BEACON_URL & YOUR_PUBLIC_IP_ADDRESS .

• Create a data directory under project :

mkdir /mnt/base-sepolia/data

• Create secret file :

cd /mnt/base-sepolia/data
openssl rand -hex 32 | tr -d "\n" > "./engine-auth-jwt"

3

Creating op-reth service file

echo "[Unit]
Description=Optimism Go-arbiturum client
After=network.target

[Service]
User=root
Type=simple
ExecStart=/usr/bin/op-reth node \
--datadir=/mnt/base-sepolia/data-reth \
--ws \
--ws.origins="*" \
--ws.addr=0.0.0.0 \
--ws.port=8546 \
--ws.api=debug,eth,net,trace,txpool,web3,rpc,reth,admin \
--http \
--http.corsdomain="*" \
--http.addr=0.0.0.0 \
--http.port=8545 \
--http.api=debug,eth,net,trace,txpool,web3,rpc,reth,admin \
--authrpc.addr=0.0.0.0 \
--authrpc.port=8551 \
--authrpc.jwtsecret=/mnt/base-sepolia/data-reth/engine-auth-jwt \
--metrics=0.0.0.0:6060 \
--chain=base-sepolia \
--rollup.sequencer-http=https://sepolia-sequencer.base.org \
--rollup.disable-tx-pool-gossip

KillMode=process
KillSignal=SIGINT
TimeoutStopSec=90
Restart=on-failure
RestartSec=10s
StandardOutput=journal
StandardError=journal

[Install]
WantedBy=multi-user.target" > /etc/systemd/system/op-reth.service

Create a data directory:

mkdir -p /mnt/base-sepolia/data-reth
cp /mnt/base-sepolia/data/engine-auth-jwt /mnt/base-sepolia/data-reth/engine-auth-jwt

4

Enable Services

systemctl daemon-reload
systemctl enable op-node.service
systemctl enable op-reth.service

5

Start Services

systemctl start op-node.service
systemctl start op-reth.service

Monitoring

The Sync time is ~24 hours ; depending upon L1 RPC, Peers , Disk & Internet speed .

• Check is Service file is running and status is active(running)

systemctl status op-node.service
systemctl status op-reth.service

• Check op-node service file logs

journalctl -fu op-node.service # Live logs

result

Mar 15 08:08:58 op-node[2644281]: t=2025-03-15T08:08:58+0100 lvl=info msg="Optimistically queueing unsafe L2 execution payload" id=0x90e199e558a43d057755c3b10375098888c71c24e59e0b68752d0e2779cd8637:23127125
Mar 15 08:08:58 op-node[2644281]: t=2025-03-15T08:08:58+0100 lvl=info msg="Inserted new L2 unsafe block (synchronous)" hash=0x90e199e558a43d057755c3b10375098888c71c24e59e0b68752d0e2779cd8637 number=23127125 newpayload_time=46.682ms fcu2_time=422.404µs total_time=47.106ms mgas=20.235851 mgasps=429.57957359986085
Mar 15 08:08:58 op-node[2644281]: t=2025-03-15T08:08:58+0100 lvl=info msg="Sync progress" reason="new chain head block" l2_finalized=0xad05950d632d858da449f885a4d6216af4793521b636adc42e20d8d01344049a:23096311 l2_safe=0xad05950d632d858da449f885a4d6216af4793521b636adc42e20d8d01344049a:23096311 l2_pending_safe=0xad05950d632d858da449f885a4d6216af4793521b636adc42e20d8d01344049a:23096311 l2_unsafe=0x90e199e558a43d057755c3b10375098888c71c24e59e0b68752d0e2779cd8637:23127125 l2_backup_unsafe=0x0000000000000000000000000000000000000000000000000000000000000000:0 l2_time=1742022538
Mar 15 08:08:58 op-node[2644281]: t=2025-03-15T08:08:58+0100 lvl=info msg="successfully processed payload" ref=0x90e199e558a43d057755c3b10375098888c71c24e59e0b68752d0e2779cd8637:23127125 txs=72

• Check op-reth service file logs

journalctl -fu op-reth.service # Live logs

result

Mar 15 08:08:48 op-reth[2644142]: 2025-03-15T07:08:48.796637Z  INFO Canonical chain committed number=23127120 hash=0xe65860150e39a3f1784e38c9f2eced0913b8697106a910ebfa6bfb5d0c68c0a8 elapsed=131.183µs
Mar 15 08:08:50 op-reth[2644142]: 2025-03-15T07:08:50.465654Z  INFO State root task finished state_root=0x1611ce8389868100d8fec8c4edf019cb7937bd0f2f3b97be628dc76481242f4c elapsed=4.161285ms
Mar 15 08:08:50 op-reth[2644142]: 2025-03-15T07:08:50.465808Z  INFO Block added to canonical chain number=23127121 hash=0x7527aee3323166d9e173d3014b11547e998fd4f7ee96d71cc56ef7ba96f3dfaf peers=60 txs=69 gas=14.87 Mgas gas_throughput=423.14 Mgas/second full=24.8% base_fee=0.01gwei blobs=0 excess_blobs=0 elapsed=35.151491ms
Mar 15 08:08:50 op-reth[2644142]: 2025-03-15T07:08:50.466326Z  INFO Canonical chain committed number=23127121 hash=0x7527aee3323166d9e173d3014b11547e998fd4f7ee96d71cc56ef7ba96f3dfaf elapsed=100.196µs

Sync Status

Run a query to check the latest synchronized L2 block:

curl -H "Content-Type: application/json" -X POST --data '{"jsonrpc":"2.0","method":"eth_blockNumber",
"params":[],"id":83}' http://localhost:8545

Response should look like:

{"jsonrpc":"2.0","id":83,"result":"0x160e561"}

References

TESTNET Base Sepolia Network (ETH) Blockchain ExplorerBase Sepolia Network Explorer