How to Install Unbound on Alpine Linux Latest

Unbound is a validating, recursive, and caching DNS resolver. In this tutorial, we will guide you through the process of installing Unbound on Alpine Linux Latest.

Prerequisites

Before we start with the installation process, ensure that you have an internet connection and a user account with sudo privileges.

Step 1: Update the System

Update the system package list by running the following command:

sudo apk update

Step 2: Install the Unbound Package

Install the unbound package by running the following command:

sudo apk add unbound

Step 3: Configure Unbound

The default configuration file of Unbound is located at /etc/unbound/unbound.conf. You can edit this file and customize the Unbound configuration as per your requirements. For example, you can set the root-hints file path or add DNS-over-TLS/HTTPS servers.

sudo nano /etc/unbound/unbound.conf

Once you have modified the configuration file, save the changes and exit the text editor.

Step 4: Start the Unbound Service

After completing the configuration, start the Unbound service by running the following command:

sudo rc-service unbound start

You can check the status of the service by running the following command:

sudo rc-service unbound status

Step 5: Configure DNS Resolution

To use Unbound as your default DNS resolver, update /etc/resolv.conf and add the following line:

nameserver 127.0.0.1

Note that some Linux distributions may automatically overwrite this file. In this case, you need to modify the configuration file of your specific Linux distribution.

Conclusion

In this tutorial, we have successfully installed and configured Unbound on Alpine Linux Latest. You can now use Unbound as your default DNS resolver and enjoy its features such as DNSSEC validation, DNS-over-TLS/HTTPS, and caching.