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Unbound is a flexible and efficient DNS resolver that can be used as a recursive DNS server. It offers features like DNSSEC validation, caching, and performance optimization.
Installation on Ubuntu/Debian:
Update package lists:
sudo apt update
Install Unbound:
sudo apt install unbound
Installation on CentOS/RHEL:
Enable EPEL repository:
sudo yum install epel-release
Update package lists:
sudo yum update
Install Unbound:
sudo yum install unbound
Installation on macOS:
Install Homebrew (if not already installed):
/bin/bash -c “$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/HEAD/install.sh)”
Install Unbound using Homebrew:
brew install unbound
Installation on Windows:
- Download the Unbound binary: Visit the Unbound project website and download the appropriate binary for Windows.
- Extract the files: Extract the downloaded archive to a directory of your choice.
- Configure Unbound: Create a configuration file (e.g., unbound.conf) and configure the necessary settings.
- Run Unbound: Run the unbound executable from the command line.
Additional Considerations:
- Firewall rules: Ensure that your firewall allows incoming and outgoing traffic on port 53 (the default DNS port).
- DNSSEC validation: Configure Unbound to validate DNSSEC signatures.
- Caching: Configure caching settings to improve performance.
- Recursion control: If you want to restrict recursive queries, configure appropriate settings.
For more detailed instructions and configuration options, refer to the Unbound documentation: https://unbound.net/
By following these steps, you can successfully install Unbound and use it as a DNS resolver for your network.
