How to Delete DNS Cache?

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In this post, we’ll go through what DNS is and why you should delete it for Windows®8, Windows®7 and Windows®10, Ubuntu, Red Hat® Enterprise Linux® CentOS, and other Linux® releases.

What is DNS Cache?

A DNS cache (also known as a DNS resolver cache) is a temporary database maintained by the operating system of a computer that keeps records of all recent and attempted visits to websites and other internet domains.

Clearing your cache is a good practice since it:

  • Prohibits the use of outdated forms
  • Safeguards your personal data
  • Enables our apps to function more smoothly on your computer

When you visit a website, your browser saves the following information:

  • Detailed information (such as the location of the site you visited)
  • Files required to operate a web application
  • Number of downloads (such as old versions of forms)

You may still utilize outdated files when we update our program. You may see outdated forms if you don’t delete your cache. When applying online, old files may create display or access issues.

How to Erase DNS Cache

Windows®8

If you’re using Windows 8, take these instructions to delete your DNS cache:

  1. To access the WinX Menu, use Win+X on your keyboard.
  2. Select Run as Administrator from the context menu when you right-click Command Prompt.
  3. Execute the command below:
ipconfig /flushdns

If the command is executed successfully, the system displays the following message:

Windows IP configuration successfully flushed the DNS Resolver Cache

Windows®7 and Windows®10

If you’re using Windows 7 or 10, take these instructions to remove your DNS cache:

  1. Start by clicking the Start button.
  2. In the Start menu searching text box, type cmd.
  3. Select Run as Administrator from the context menu when you right-click Command Prompt.
  4. Execute the command below:
ipconfig /flushdns

If the command succeeds, the system delivers the following message:

Windows IP configuration successfully flushed the DNS Resolver Cache

Ubuntu

To clear your DNS cache if you use Ubuntu®, perform the following steps:

  1. Run the following command:
sudo systemd-resolve --flush-caches

2. Run the following command:

sudo systemd-resolve --statistics

If the command succeeds, it will return results with an empty cache.

Red Hat® Enterprise Linux® CentOS, and other Linux® releases

If you’re using CentOS or a similar Linux distribution (such as CloudLinuxTM or AlmaLinux OS), execute the following command to erase your DNS cache:

systemctl restart dnsmasq.service

If the command is successful, the system produces no output.

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