How to Uninstall BIND9 on Ubuntu

How to Uninstall BIND9 on Ubuntu

BIND9, also known as Berkeley Internet Name Domain version 9, is the most widely used Domain Name System (DNS) software on the Internet. It’s used to translate human-readable domain names, like “,” into IP addresses, which are used for routing traffic across the internet.

However, there might be instances where you no longer require BIND9 on your Ubuntu server. Perhaps you’re migrating to a different DNS solution, or you’ve decided to use a cloud-based DNS provider. Whatever the reason, it’s essential to know how to properly uninstall BIND9 to ensure there are no residual configurations or files left behind.

In this tutorial, we’ll walk you through the step-by-step process of removing BIND9 on Ubuntu OS. Before making any changes, always ensure you have backups of your configurations and data.

Let’s get started.

Step 1: Backup BIND9 Configuration Files

Before uninstalling BIND9, it’s a good practice to backup its configuration files. This ensures that you can restore the setup if needed in the future.

sudo cp -r /etc/bind/ ~/bind_backup

This command will create a backup of the BIND9 configuration directory in your home directory.

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Step 2: Stop the BIND9 Service

Before uninstalling, ensure that the BIND9 service is stopped.

sudo systemctl stop bind9

Step 3: Uninstall BIND9

Now, you can uninstall BIND9 using the apt package manager.

sudo apt-get purge bind9

This command will remove BIND9 and its configuration files.

Step 4: Remove Additional Configuration and Cache Files

BIND9 might have some residual files left in the system. To ensure a clean uninstallation, remove these files.

sudo rm -rf /etc/bind/
sudo rm -rf /var/cache/bind/

Step 5: Update System Repositories

After uninstalling BIND9, update the system repositories to ensure all links are refreshed.

sudo apt-get update

Commands Mentioned

  • sudo cp -r /etc/bind/ ~/bind_backup – Backs up BIND9 configuration files
  • sudo systemctl stop bind9 – Stops the BIND9 service
  • sudo apt-get purge bind9 – Uninstalls BIND9 and its configuration files
  • sudo rm -rf /etc/bind/ – Removes BIND9 configuration directory
  • sudo rm -rf /var/cache/bind/ – Removes BIND9 cache directory
  • sudo apt-get update – Updates system repositories
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  1. Why would I need to uninstall BIND9?

    There could be several reasons, such as migrating to a different DNS solution, optimizing server resources, or troubleshooting conflicts with other software.

  2. Is it safe to remove BIND9 configuration files?

    Yes, but always ensure you have a backup before removing any configuration files. This ensures you can restore the setup if needed.

  3. Can I reinstall BIND9 after uninstalling?

    Yes, you can reinstall BIND9 anytime using the apt package manager. Ensure you configure it properly after installation.

  4. What are the alternatives to BIND9?

    There are several alternatives like PowerDNS, Unbound, and dnsmasq, each with its own set of features and benefits.

  5. Do I need to restart my server after uninstalling BIND9?

    No, a server restart is not necessary after uninstalling BIND9. However, always monitor your server’s performance and stability after making significant changes.

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Uninstalling BIND9 from your Ubuntu server is a straightforward process, but it’s crucial to follow the steps carefully to ensure a clean removal.

Always backup your configuration files before making changes to your server’s software. This ensures that you can quickly restore your setup if needed.

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