Flush DNS is a command that help clears outdated or corrupted DNS resolver cache. It typically help fix network connectivity related issues.
For example: If you are having trouble accessing a specific website even after clearing the browsers cookies/history/cache and other website are working fine. You may want to try clearing the DNS cache on your Chrome OS computer.
For Windows: Flush DNS Cache on Windows
Flush DNS Cache:
|1||Launch Google Chrome browser|
|2||In the address bar, type in chrome://net-internals/#dns and hit enter|
|3||Click on "Clear host cache"|
Clear the cookies/history/cache for Google Chrome: https://support.google.com/accounts/answer/32050
|5||Close out the page. Try visiting the website again||no image|