Creating a Native Rocket Pool Node without Docker

In this section, we will walk through the process of installing the Rocket Pool Smartnode stack natively onto your system, without the use of Docker containers.

The general plan is as follows:

• Create system services for the Rocket Pool components (the node process, and optionally the watchtower process if you are an Oracle Node)
• Create a system service for the Execution client
• Create a system service for the Beacon node
• Create a system service for the Validator client
• Configure Rocket Pool to use communicate with those services

This is a fairly involved setup so it will take some time to complete.

The diversity of Operating Systems and distros available make it impractical to make guides available for all of them. The instructions in this guide are tailored to a Debian-based system (including Ubuntu). For other distros or operating systems, you may follow the high-level steps described in the guide but will have to substitute certain commands for the ones that your system uses as appropriate.

WARNING

This guide is intended for users that are experienced with Linux system administration and usage. This includes using the terminal, creating system accounts, managing permissions, and installing services. If you are not familiar with these activites, we do not recommend that you use the native mode.

Creating Service Accounts

The first step is to create new system accounts for the services and disable logins and shell access for them. The reason for having separate user accounts is practical: if your Execution or Consensus clients have a major vulnerability like an Arbitrary Code Execution (opens new window) exploit, doing this will limit the amount of damage an attacker can actually do since they're running on an account with limited permissions.

We're going to create one account for your Execution client, one for your Beacon Node, and one for both Rocket Pool and the validator client. The sharing is necessary because Rocket Pool will create the validator's key files once you create a new minipool, and it will set the permissions so that only its own user has access to them. If you're using Nimbus for your Consensus client, then it will share an account with Rocket Pool instead since it doesn't have a separate validator client.

Start by creating an account for your Execution client, which we'll call eth1:

sudo useradd -r -s /sbin/nologin eth1

Do the same for your Beacon Node, which we'll call eth2:

sudo useradd -r -s /sbin/nologin eth2

Finally, make one for the validator and Rocket Pool, which we'll call rp:

sudo useradd -r -s /sbin/nologin rp

NOTE

If you're using Nimbus, ignore the rp account. Any time you see it used in this guide, just substitute it with eth2 instead.

Now, add yourself to the rp group. You'll need to do this in order to use the Rocket Pool CLI, because it and the Rocket Pool daemon both need to access the Execution layer wallet file.

sudo usermod -aG rp $USER

After this, logout and back in for the changes to take effect.

Installing Rocket Pool

Setting up the Binaries

Start by making a folder for Rocket Pool and a data subfolder. You can put this wherever you want; for this guide, I'll put it into /srv:

sudo mkdir -p /srv/rocketpool/data

sudo chown -R $USER:$USER /srv/rocketpool

Now, download the CLI and daemon binaries (or ignore this and build them from source if you prefer). Choose the platform that your system uses from the tabs below.

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-cli-linux-amd64 -O /usr/local/bin/rocketpool

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-daemon-linux-amd64 -O /usr/local/bin/rocketpoold

sudo chmod +x /usr/local/bin/rocketpool /usr/local/bin/rocketpoold

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-cli-linux-arm64 -O /usr/local/bin/rocketpool

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-daemon-linux-arm64 -O /usr/local/bin/rocketpoold

sudo chmod +x /usr/local/bin/rocketpool /usr/local/bin/rocketpoold

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-cli-darwin-amd64 -O /usr/local/bin/rocketpool

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-daemon-darwin-amd64 -O /usr/local/bin/rocketpoold

sudo chmod +x /usr/local/bin/rocketpool /usr/local/bin/rocketpoold

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-cli-darwin-arm64 -O /usr/local/bin/rocketpool

sudo wget https://github.com/rocket-pool/smartnode-install/releases/latest/download/rocketpool-daemon-darwin-arm64 -O /usr/local/bin/rocketpoold

sudo chmod +x /usr/local/bin/rocketpool /usr/local/bin/rocketpoold

Next, grab the validator restart script - Rocket Pool will use this when it needs to restart your Validator Client to load new keys after you create a new minipool:

wget https://github.com/rocket-pool/smartnode-install/raw/release/install/scripts/restart-vc.sh -O /srv/rocketpool/restart-vc.sh

chmod +x /srv/rocketpool/restart-vc.sh

Now open ~/.profile with your editor of choice and add this line to the end:

alias rp="rocketpool -d /usr/local/bin/rocketpoold -c /srv/rocketpool"

Save it, then reload your profile:

source ~/.profile

This will let you interact with Rocket Pool's CLI with the rp command, which is a nice shortcut.

Creating the Services

Next up, we'll create a systemd service for the Rocket Pool node daemon. This is the service that will automatically check for and claim RPL rewards after each checkpoint, and stake minipools once you've created them via node deposit.

Optionally, if you're an Oracle DAO member, create the corresponding watchtower service as well. If you are not an Oracle DAO member, you can ignore that service.

Create the rp-node service:

sudo nano /etc/systemd/system/rp-node.service

Contents:

[Unit]
Description=rp-node
After=network.target

[Service]
Type=simple
User=rp
Restart=always
RestartSec=5
ExecStart=/usr/local/bin/rocketpoold --settings /srv/rocketpool/user-settings.yml node

[Install]
WantedBy=multi-user.target

Create a log file for the service, so you can watch its output - this will replace the behavior of rocketpool service logs node:

nano /srv/rocketpool/node-log.sh

Contents:

#!/bin/bash
journalctl -u rp-node -b -f

Save it, then make it executable:

chmod +x /srv/rocketpool/node-log.sh

Now you can watch the node's logs by simply running $ /srv/rocketpool/node-log.sh.

Create a service for the watchtower:

sudo nano /etc/systemd/system/rp-watchtower.service

Contents:

[Unit]
Description=rp-node
After=network.target

[Service]
Type=simple
User=rp
Restart=always
RestartSec=5
ExecStart=/usr/local/bin/rocketpoold --settings /srv/rocketpool/user-settings.yml watchtower

[Install]
WantedBy=multi-user.target

Create a log file for the watchtower:

nano /srv/rocketpool/watchtower-log.sh

Contents:

#!/bin/bash
journalctl -u rp-watchtower -b -f

Save it, then make it executable:

chmod +x /srv/rocketpool/watchtower-log.sh

Installing the Execution Client

For the sake of simplicity, we're going to use Geth as our example during this guide. If you have another client in mind, adapt these instructions to that client accordingly.

Start by making a folder for the Geth binary and the log script:

sudo mkdir /srv/geth

sudo chown $USER:$USER /srv/geth

Next, make a folder for the chain data on the SSD. Pick the set up that you have below:

sudo mkdir /srv/geth/geth_data

sudo chown eth1:eth1 /srv/geth/geth_data

This assumes that your SSD is mounted on a folder like /mnt/rpdata; substitute it accordingly with the folder you used.

sudo mkdir /mnt/rpdata/geth_data

sudo chown eth1:eth1 /mnt/rpdata/geth_data

Now, grab the latest Geth binary (opens new window) for your architecture, or build it from source (opens new window) if you want. If you download it, it will be an archive. Extract it and copy the contents of the geth folder to /srv/geth. For example, if you have an x64 system:

cd /tmp

wget https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-1.10.3-991384a7.tar.gz

tar xzf geth-linux-amd64-1.10.3-991384a7.tar.gz

cp geth-linux-amd64-1.10.3-991384a7/geth /srv/geth

Next, create a systemd service for Geth. You can use this as a template, and modify the command line arguments as you see fit:

sudo nano /etc/systemd/system/geth.service

Contents:

[Unit]
Description=Geth
After=network.target

[Service]
Type=simple
User=eth1
Restart=always
RestartSec=5
ExecStart=/srv/geth/geth --datadir /srv/geth/geth_data --mainnet --http --http.port 8545 --http.api eth,net,personal,web3 --ws --ws.port 8546 --ws.api eth,net,personal,web3

[Install]
WantedBy=multi-user.target

Contents:

[Unit]
Description=Geth
After=network.target

[Service]
Type=simple
User=eth1
Restart=always
RestartSec=5
ExecStart=taskset 0x0c ionice -c 3 /srv/geth/geth --mainnet --cache 512 --maxpeers 12 --datadir /mnt/rpdata/geth_data --http --http.port 8545 --http.api eth,net,personal,web3 --ws --ws.port 8546 --ws.api eth,net,personal,web3

[Install]
WantedBy=multi-user.target

Note that the taskset 0x0c ionice -c 3 at the start is meant for Raspberry Pi's or other similarly low-power systems:

• taskset 0x0c constrains Geth to only run on CPUs 2 and 3. This way, it won't interfere with the Beacon Node.
• ionice -c 3 tells the system that Geth's disk access is a super low priority - if the Beacon Node needs to access the SSD, it will always have priority over Geth.

You can omit that prefix if you're not on a low-power system.

NOTE

The above configuration is for the Ethereum mainnet. If you want to run on the Prater testnet instead, replace the --mainnet flag in the ExecStart string with --goerli.

Some notes:

• You can optionally use the --cache flag to lower the amount of RAM that Geth uses.
  • If you have 4 GB of RAM, set this to 256.
  • If you have 8 GB of RAM, you can leave it at 512 so it syncs faster and doesn't require pruning as frequently.
  • For larger amounts of RAM, you can ignore this flag.
• You can optionally use the --maxpeers flag to lower the peer count. The peer count isn't very important for the Execution client, and lowering it can free up some extra resources if you need them.

Lastly, add a log watcher script so you can check on Geth to see how it's doing:

sudo nano /srv/geth/log.sh

Contents:

#!/bin/bash
journalctl -u geth -b -f

Make it executable:

sudo chmod +x /srv/geth/log.sh

Now you can see the Geth logs by doing $ /srv/geth/log.sh. This replaces the behavior that rocketpool service logs eth1 used to provide, since it can't do that without Docker.

All set on the the Execution client; now for the Consensus client.

Installing the Beacon Node

Start by making a folder for your Beacon Node binary and log script. Choose the instructions for the client you want to run:

sudo mkdir /srv/lighthouse

sudo chown $USER:$USER /srv/lighthouse

Next, make a folder for Lighthouse's chain data on the SSD.

If your chain data and OS live on the same SSD:

sudo mkdir /srv/lighthouse/lighthouse_data

sudo chown eth2:eth2 /srv/lighthouse/lighthouse_data

If they live on separate disks (e.g. an external SSD, as with the Raspberry Pi), then assuming that your SSD is mounted to /mnt/rpdata:

sudo mkdir /mnt/rpdata/lighthouse_data

sudo chown eth2:eth2 /mnt/rpdata/lighthouse_data

Now, grab the latest Lighthouse release (opens new window), or build it from source (opens new window) if you want.

Copy lighthouse from the release archive into /srv/lighthouse/.

sudo mkdir /srv/nimbus

sudo chown $USER:$USER /srv/nimbus

Next, make a folder for Nimbus's chain data on the SSD.

If your chain data and OS live on the same SSD:

sudo mkdir /srv/nimbus/nimbus_data

sudo chown eth2:eth2 /srv/nimbus/nimbus_data

If they live on separate disks (e.g. an external SSD, as with the Raspberry Pi), then assuming that your SSD is mounted to /mnt/rpdata:

sudo mkdir /mnt/rpdata/nimbus_data

sudo chown eth2:eth2 /mnt/rpdata/nimbus_data

Now, grab the latest Nimbus release (opens new window), or build it from source (opens new window) if you want.

Copy build/nimbus_beacon_node from the release archive into /srv/nimbus/, optionally renaming it to nimbus (the rest of the guide assumes you have done this):

cp build/nimbus_beacon_node /srv/nimbus/nimbus

sudo mkdir /srv/prysm

sudo chown $USER:$USER /srv/prysm

Next, make a folder for Prysm's chain data on the SSD.

If your chain data and OS live on the same SSD:

sudo mkdir /srv/prysm/prysm_data

sudo chown eth2:eth2 /srv/prysm/prysm_data

If they live on separate disks (e.g. an external SSD, as with the Raspberry Pi), then assuming that your SSD is mounted to /mnt/rpdata:

sudo mkdir /mnt/rpdata/prysm_data

sudo chown eth2:eth2 /mnt/rpdata/prysm_data

Now, grab the latest Prysm binaries (opens new window), or build them from source (opens new window) if you want.

Specifically, you want to save the beacon-chain-xxx and validator-xxx binaries the release page archive into /srv/prysm/ (and optionally, rename them to beacon-chain and validator - the rest of the guide will assume you have done this).

NOTE

If you want to run on the Prater testnet, you will need Prater's genesis.ssz file to function correctly. Download it like this:

sudo wget https://github.com/eth-clients/eth2-networks/raw/master/shared/prater/genesis.ssz -O /srv/prysm/genesis.ssz

sudo chown eth2:eth2 /srv/prysm/genesis.ssz

sudo mkdir /srv/teku

sudo chown $USER:$USER /srv/teku

sudo mkhomedir_helper rp

Next, make a folder for Teku's chain data on the SSD.

If your chain data and OS live on the same SSD:

sudo mkdir /srv/teku/teku_data

sudo chown eth2:eth2 /srv/teku/teku_data

If they live on separate disks (e.g. an external SSD, as with the Raspberry Pi), then assuming that your SSD is mounted to /mnt/rpdata:

sudo mkdir /mnt/rpdata/teku_data

sudo chown eth2:eth2 /mnt/rpdata/teku_data

Teku needs Java 11 to function, ensure that you have it installed.

sudo apt install openjdk-11-jre -y

Now, grab the latest Teku release (opens new window), or build it from source (opens new window) if you want.

Copy the bin and lib folders from the release archive into /srv/teku/.

Next, create a systemd service for your Beacon Node. The following are examples that show typical command line arguments to use in each one:

The following assumes you use the default data folder at: /srv/lighthouse/lighthouse_data. If you have a different configuration, like an external SSD, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/lh-bn.service

Contents:

[Unit]
Description=Lighthouse Beacon Node
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=/srv/lighthouse/lighthouse beacon --network mainnet --datadir /srv/lighthouse/lighthouse_data --port 9001 --discovery-port 9001 --eth1 --eth1-endpoints http://localhost:8545 --http --http-port 5052 --eth1-blocks-per-log-query 150 --disable-upnp

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network mainnet flag in the ExecStart string with --network prater.

The following assumes you use the default data folder at: /srv/nimbus/nimbus_data. If you have a different configuration, like an external SSD, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/nimbus.service

Contents:

[Unit]
Description=Nimbus
After=network.target

[Service]
Type=simple
User=rp
Restart=always
RestartSec=5
ExecStart=/srv/nimbus/nimbus --non-interactive --network=mainnet --data-dir=/srv/nimbus/nimbus_data --insecure-netkey-password --validators-dir=/srv/rocketpool/data/validators/nimbus/validators --secrets-dir=/srv/rocketpool/data/validators/nimbus/secrets --graffiti="RP Nimbus" --web3-url="ws://127.0.0.1:8546" --tcp-port=9001 --udp-port=9001 --rest --rest-port=5052 --num-threads=0

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network=mainnet flag in the ExecStart string with --network=prater.

Now, create the validator folders that Nimbus needs because it will crash without them:

sudo mkdir -p /srv/rocketpool/data/validators/nimbus/validators

sudo mkdir -p /srv/rocketpool/data/validators/nimbus/secrets

sudo chown eth2:eth2 /srv/rocketpool/data/validators/ -R

Next, we have to give the rp user the ability to restart the validator client when new validator keys are created.

Open the sudoers file:

sudo visudo

Add this line under # Cmnd alias specification:

Cmnd_Alias RP_CMDS = /usr/bin/systemctl restart nimbus

Add this line under # User privilege specification:

rp    ALL=(ALL) NOPASSWD: RP_CMDS

That whole section should now look like this:

# Cmnd alias specification
Cmnd_Alias RP_CMDS = /usr/bin/systemctl restart nimbus

# User privilege specification
root    ALL=(ALL:ALL) ALL
rp    ALL=(ALL) NOPASSWD: RP_CMDS

Finally, modify /srv/rocketpool/restart-vc.sh:

• Uncomment the line at the end and change it to sudo systemctl restart nimbus

The following assumes you use the default data folder at: /srv/prysm/prysm_data. If you have a different configuration, like an external SSD, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/prysm-bn.service

Contents:

[Unit]
Description=Prysm Beacon Node
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=/srv/prysm/beacon-chain --accept-terms-of-use --mainnet --datadir /srv/prysm/prysm_data --p2p-tcp-port 9001 --p2p-udp-port 9001 --http-web3provider http://localhost:8545 --rpc-port 5053 --grpc-gateway-port 5052 --eth1-header-req-limit 150

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the ExecStart string with the following:

ExecStart=/srv/prysm/beacon-chain --accept-terms-of-use --prater --genesis-state /srv/prysm/genesis.ssz --datadir /srv/prysm/prysm_data --p2p-tcp-port 9001 --p2p-udp-port 9001 --http-web3provider http://localhost:8545 --rpc-port 5053 --grpc-gateway-port 5052 --eth1-header-req-limit 150

The following assumes you use the default data folder at: /srv/teku/teku_data. If you have a different configuration, like an external SSD, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/teku-bn.service

Contents:

[Unit]
Description=Teku Beacon Node
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=/srv/teku/bin/teku --network=mainnet --data-path=/srv/teku/teku_data --p2p-port=9001 --eth1-endpoint=http://localhost:8545 --rest-api-enabled --rest-api-port=5052 --eth1-deposit-contract-max-request-size=150

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network=mainnet flag in the ExecStart string with --network=prater.

The following assumes you have a separate SSD for your chain data mounted to /mnt/rpdata. If you have a different configuration, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/lh-bn.service

Contents:

[Unit]
Description=Lighthouse Beacon Node
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=ionice -c 2 -n 0 /srv/lighthouse/lighthouse beacon --network mainnet --datadir /mnt/rpdata/lighthouse_data --port 9001 --discovery-port 9001 --eth1 --eth1-endpoints http://localhost:8545 --http --http-port 5052 --eth1-blocks-per-log-query 150 --disable-upnp

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network=mainnet flag in the ExecStart string with --network=prater.

Note that since Nimbus runs the beacon node and validator client together, you only need to make one service to act as both.

The following assumes you have a separate SSD for your chain data mounted to /mnt/rpdata. If you have a different configuration, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/nimbus.service

Contents:

[Unit]
Description=Nimbus
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=ionice -c 2 -n 0 /srv/nimbus/nimbus --max-peers=60 --non-interactive --network=mainnet --data-dir=/mnt/rpdata/nimbus_data --insecure-netkey-password --validators-dir=/srv/rocketpool/data/validators/nimbus/validators --secrets-dir=/srv/rocketpool/data/validators/nimbus/secrets --graffiti="RP Nimbus" --web3-url=ws://localhost:8546 --tcp-port=9001 --udp-port=9001 --rest --rest-port=5052 --num-threads=0

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network=mainnet flag in the ExecStart string with --network=prater.

Note the following:

• Nimbus is preceeded by taskset 0x01. Basically, this constrains Nimbus to only run on CPU 0 (since it's single threaded). If you followed the Geth guide for the Execution client (which constrained Geth to CPU 2 and 3), this will ensure that the processes don't overlap on the same core and will provide maximum performance.
• Change the --graffiti to whatever you want.
• By default, Nimbus will try to connect to 160 peers. We changed it here to --max-peers=60 to lighten the CPU load a little, but you are free to experiement with this if you want.

Now, create the validator folders that Nimbus needs because it will crash without them:

sudo mkdir -p /srv/rocketpool/data/validators/nimbus/validators

sudo mkdir -p /srv/rocketpool/data/validators/nimbus/secrets

sudo chown eth2:eth2 /srv/rocketpool/data/validators/ -R

Next, we have to give the rp user the ability to restart the validator client when new validator keys are created.

Open the sudoers file:

sudo nano /etc/sudoers

Add this line under # Cmnd alias specification:

Cmnd_Alias RP_CMDS = /usr/bin/systemctl restart nimbus

Add this line under # User privilege specification:

rp    ALL=(ALL) NOPASSWD: RP_CMDS

That whole section should now look like this:

# Cmnd alias specification
Cmnd_Alias RP_CMDS = /usr/bin/systemctl restart nimbus

# User privilege specification
root    ALL=(ALL:ALL) ALL
rp    ALL=(ALL) NOPASSWD: RP_CMDS

Finally, modify /srv/rocketpool/restart-vc.sh:

• Uncomment the line at the end and change it to sudo systemctl restart nimbus

The following assumes you have a separate SSD for your chain data mounted to /mnt/rpdata. If you have a different configuration, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/prysm-bn.service

Contents:

[Unit]
Description=Prysm Beacon Node
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=ionice -c 2 -n 0 /srv/prysm/beacon-chain --accept-terms-of-use --mainnet --datadir /mnt/rpdata/prysm_data --p2p-tcp-port 9001 --p2p-udp-port 9001 --http-web3provider http://localhost:8545 --rpc-port 5053 --grpc-gateway-port 5052 --eth1-header-req-limit 150

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the ExecStart string with the following:

ExecStart=ionice -c 2 -n 0 /srv/prysm/beacon-chain --accept-terms-of-use --prater --genesis-state /srv/prysm/genesis.ssz --datadir /mnt/rpdata/prysm_data --p2p-tcp-port 9001 --p2p-udp-port 9001 --http-web3provider http://localhost:8545 --rpc-port 5053 --grpc-gateway-port 5052 --eth1-header-req-limit 150

The following assumes you have a separate SSD for your chain data mounted to /mnt/rpdata. If you have a different configuration, replace all instances of that below with your own folder.

sudo nano /etc/systemd/system/teku-bn.service

Contents:

[Unit]
Description=Teku Beacon Node
After=network.target

[Service]
Type=simple
User=eth2
Restart=always
RestartSec=5
ExecStart=ionice -c 2 -n 0 /srv/teku/bin/teku --network=mainnet --data-path=/mnt/rpdata/teku_data --p2p-port=9001 --eth1-endpoint=http://localhost:8545 --rest-api-enabled --rest-api-port=5052 -eth1-deposit-contract-max-request-size=150

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network=mainnet flag in the ExecStart string with --network=prater.

Some notes:

• The user is set to eth2.
• For arm64 systems, ionice -c 2 -n 0 tells your system to give your Beacon Node the highest possible priority for disk I/O (behind critical system processes), so it can process and attest as quickly as possible

Next, add a log watcher script in the folder you put your Beacon Node into:

sudo nano /srv/lighthouse/bn-log.sh

The contents should be this:

#!/bin/bash
journalctl -u lh-bn -b -f

Make it executable:

sudo chmod +x /srv/lighthouse/bn-log.sh

sudo nano /srv/nimbus/log.sh

The contents should be this:

#!/bin/bash
journalctl -u nimbus -b -f

Make it executable:

sudo chmod +x /srv/nimbus/log.sh

sudo nano /srv/prysm/bn-log.sh

The contents should be this:

#!/bin/bash
journalctl -u prysm-bn -b -f

Make it executable:

sudo chmod +x /srv/prysm/bn-log.sh

sudo nano /srv/teku/bn-log.sh

The contents should be this:

#!/bin/bash
journalctl -u teku-bn -b -f

Make it executable:

sudo chmod +x /srv/teku/bn-log.sh

With that, the Beacon Node is all set. On to the validator client!

Installing the Validator Client

NOTE

Nimbus does not have a seperate validator client at this time, so it is not included in these instructions. If you plan to use Nimbus, you've already taken care of this during the Beacon Node setup and can skip this section.

First, create a systemd service for your validator client. The following are examples that show typical command line arguments to use in each one:

sudo nano /etc/systemd/system/lh-vc.service

Contents:

[Unit]
Description=Lighthouse Validator
After=network.target

[Service]
Type=simple
User=rp
Restart=always
RestartSec=5
ExecStart=/srv/lighthouse/lighthouse validator --network mainnet --datadir /srv/rocketpool/data/validators/lighthouse --init-slashing-protection --beacon-node "http://localhost:5052" --graffiti "RP Lighthouse"

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network mainnet flag in the ExecStart string with --network prater.

sudo nano /etc/systemd/system/prysm-vc.service

Contents:

[Unit]
Description=Prysm Validator
After=network.target

[Service]
Type=simple
User=rp
Restart=always
RestartSec=5
ExecStart=/srv/prysm/validator --accept-terms-of-use --mainnet --wallet-dir /srv/rocketpool/data/validators/prysm-non-hd --wallet-password-file /srv/rocketpool/data/validators/prysm-non-hd/direct/accounts/secret --beacon-rpc-provider "localhost:5053" --graffiti "RP Prysm"

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --mainnet flag in the ExecStart string with --prater.

sudo nano /etc/systemd/system/teku-vc.service

Contents:

[Unit]
Description=Teku Validator
After=network.target

[Service]
Type=simple
User=rp
Restart=always
RestartSec=5
ExecStart=/srv/teku/bin/teku validator-client --network=mainnet --validator-keys=/srv/rocketpool/data/validators/teku/keys:/srv/rocketpool/data/validators/teku/passwords --beacon-node-api-endpoint="http://localhost:5052" --validators-graffiti="RP Teku" --log-destination=CONSOLE --data-base-path=/srv/rocketpool

[Install]
WantedBy=multi-user.target

NOTE

The above configuration is for the Ethereum mainnet. If you want to use the Prater testnet instead, replace the --network=mainnet flag in the ExecStart string with --network=prater.

Next, add a log watcher script in the folder you put your validator client into:

sudo nano /srv/lighthouse/vc-log.sh

The contents should be this:

#!/bin/bash
journalctl -u lh-vc -b -f

Make it executable:

sudo chmod +x /srv/lighthouse/vc-log.sh

sudo nano /srv/prysm/vc-log.sh

The contents should be this:

#!/bin/bash
journalctl -u prysm-vc -b -f

Make it executable:

sudo chmod +x /srv/prysm/vc-log.sh

sudo nano /srv/teku/vc-log.sh

The contents should be this:

#!/bin/bash
journalctl -u teku-vc -b -f

Make it executable:

sudo chmod +x /srv/teku/vc-log.sh

Now, we have to give the rp user the ability to restart the validator client when new validator keys are created.

Open the sudoers file:

sudo nano /etc/sudoers

Add this line under # Cmnd alias specification, replacing <validator service name> with the name of your validator service (e.g. lh-vc, prysm-vc, or teku-vc)

Cmnd_Alias RP_CMDS = /usr/bin/systemctl restart <validator service name>

Add this line under # User privilege specification:

rp    ALL=(ALL) NOPASSWD: RP_CMDS

That whole section should now look like this:

# Cmnd alias specification
Cmnd_Alias RP_CMDS = /usr/bin/systemctl restart <validator service name>

# User privilege specification
root    ALL=(ALL:ALL) ALL
rp    ALL=(ALL) NOPASSWD: RP_CMDS

Finally, modify /srv/rocketpool/restart-vc.sh:

• Uncomment the line at the end and change it to sudo systemctl restart <validator service name>

The services are now installed.

Configuring the Smartnode

Now that your services are all created, it's time to configure the Smartnode stack.

Please visit the Configuring the Smartnode Stack (Native Mode) guide, and return here when you are finished.

Enabling and Running the Services

With all of the services installed, it's time to:

• Enable them so they'll automatically restart if they break, and automatically start on a reboot
• Start them all!

sudo systemctl daemon-reload

sudo systemctl enable geth lh-bn lh-vc rp-node rp-watchtower

sudo systemctl start geth lh-bn lh-vc rp-node rp-watchtower

sudo systemctl daemon-reload

sudo systemctl enable geth nimbus rp-node rp-watchtower

sudo systemctl start geth nimbus rp-node rp-watchtower

sudo systemctl daemon-reload

sudo systemctl enable geth prysm-bn prysm-vc rp-node rp-watchtower

sudo systemctl start geth prysm-bn prysm-vc rp-node rp-watchtower

sudo systemctl daemon-reload

sudo systemctl enable geth teku-bn teku-vc rp-node rp-watchtower

sudo systemctl start geth teku-bn teku-vc rp-node rp-watchtower

The last step is to create a wallet with rp wallet init or rp wallet restore. Once that's done, change the permissions on the password and wallet files so the Rocket Pool CLI, node, and watchtower can all use them:

sudo chown rp:rp -R /srv/rocketpool/data

sudo chmod -R 775 /srv/rocketpool/data

sudo chmod 660 /srv/rocketpool/data/password

sudo chmod 660 /srv/rocketpool/data/wallet

And with that, you're ready to secure your operating system to protect your node.

Move on to the Securing your Node section next.