Run a Read-only node

Minimum Hardware Requirements: #

• AWS EC2 m5.xlarge with 4 vCPUs (3.1 GHz)
• Minimum 3TB of Amazon EBS General Purpose SSD (gp2) storage or equivalent.

Running a Read-Only Node on NCOG Blockchain: A Step-by-Step Guide #

Node Hardware Requirements: #

For optimal performance, we recommend using an AWS EC2 m5.xlarge instance with the following specifications:

• 4 vCPUs (3.1 GHz)
• 16GB of memory
• At least 3 TB of Amazon EBS General Purpose SSD storage (gp2) or equivalent.

Steps to Run a Read-Only Node: #

Launch Cloud Instance: #

• Choose a cloud provider, such as Amazon AWS.
• Deploy an m5.xlarge General Purpose Instance with the specified hardware specifications.
• Utilize Ubuntu Server 20.04 LTS (64-bit) for the operating system.

Network Settings: #

• Open port 22 for SSH.
• Open port 5050 for both TCP and UDP traffic.

Set up Non-Root User: #

1. SSH into Machine: Access your instance via SSH.
2. Update System: Run system updates and upgrades.
3. Create Non-Root User: Follow the commands to create a non-root user and assign permissions.

# SSH into your machine
(local)$ ssh root@{VALIDATOR_IP_ADDRESS}
# Update the system
(validator)$ sudo apt-get update && sudo apt-get upgrade -y
# Create a non-root user
(validator)$ USER={USERNAME}
(validator)$ sudo mkdir -p /home/$USER/.ssh
(validator)$ sudo touch /home/$USER/.ssh/authorized_keys
(validator)$ sudo useradd -d /home/$USER $USER
(validator)$ sudo usermod -aG sudo $USER
(validator)$ sudo chown -R $USER:$USER /home/$USER/
(validator)$ sudo chmod 700 /home/$USER/.ssh
(validator)$ sudo chmod 644 /home/$USER/.ssh/authorized_keys

4. Paste SSH Key: Insert your public SSH key into the authorized_keys file for SSH access.
5. Enable Sudo: Grant sudo privileges to the new user.

# Enable sudo without password for the user
(validator)$ sudo vi /etc/sudoers

Install Required Tools #

Now we are going to install Go.
First, install the required build tools:

# Update package lists and upgrade installed packages
(validator)$ apt upgrade -y

# Install software-properties-common
(validator)$ apt install -y software-properties-common

# Add the Go programming language repository
(validator)$ add-apt-repository -y ppa:longsleep/golang-backports

# Update package lists after adding the repository
(validator)$ apt update

Install Go #

# Install go
(validator)$ apt install -y golang-go