Unbound is a secure, high-performance recursive DNS resolver that can be used as an alternative to the widely-used BIND DNS server. In this tutorial, we will show you how to install Unbound on Ubuntu Server Latest step-by-step.
Before you begin, make sure your Ubuntu Server Latest has the latest updates installed. You can do this by running the following command:
sudo apt update && sudo apt upgrade -y
To install Unbound, run the following command:
sudo apt install unbound
This will install Unbound and its dependencies on your Ubuntu Server Latest system.
By default, Unbound is configured to act as a caching resolver. However, you can configure it to handle DNS queries for your own domains.
To configure Unbound, you will need to edit the /etc/unbound/unbound.conf configuration file. You can use any text editor of your choice. For example, to use nano, run the following command:
sudo nano /etc/unbound/unbound.conf
In the configuration file, you can add your own DNS zones by adding the following lines:
local-zone: "example.com" transparent
local-data: "example.com. IN A 192.168.0.1"
This will create a new zone for example.com and maps it to an IP address (in this case, 192.168.0.1). You can add more zones by repeating the local-zone and local-data lines with different domain names and IP addresses.
Once you have added your DNS zones, save the configuration file and exit your text editor.
To start Unbound, run the following command:
sudo systemctl start unbound
To ensure that Unbound starts automatically at boot time, run the following command:
sudo systemctl enable unbound
Congratulations! You have successfully installed and configured Unbound on Ubuntu Server Latest. You can now use Unbound as a secure, high-performance DNS resolver for your own domains.
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