Troubleshooting Wazuh Installation Error on Hyper-V Ubuntu 20.04

Introduction

This article aims to help users who encounter issues during the installation of Wazuh on Ubuntu 20.04 running inside Hyper-V. In this guide, we will cover the key concepts and provide solutions for common errors that may occur during the installation process.

Installation Process

Before proceeding with the installation, ensure that your Hyper-V virtual machine meets the following requirements:

• Ubuntu 20.04 as the guest operating system
• Internet connection to download the Wazuh package

To install Wazuh, follow these steps:

1. Run the following command to download the installation script:

sudo curl -sO https://packages.wazuh.com/4.9/wazuh-install.sh

2. Grant execution permissions to the downloaded script:

sudo chmod +x wazuh-install.sh

3. Run the installation script:

sudo bash wazuh-install.sh -a

Troubleshooting

Installation Failed

If the installation fails with an error message, try the following:

1. Update the package index:

sudo apt-get update

2. Run the installation script again:

sudo bash wazuh-install.sh -a

Firewall Issue

If the installation process is interrupted due to a firewall issue, follow these steps:

1. Check the firewall status:

sudo ufw status

2. Allow incoming traffic on ports 1512, 1514, and 514:

sudo ufw allow 1512/udp

sudo ufw allow 1514/udp

sudo ufw allow 514/tcp

3. Restart the Wazuh services:

sudo systemctl restart wazuh-agent

References

For further information, consult the following resources:

• Wazuh Ubuntu Installation Guide
• Hyper-V Ubuntu Installation Guide