Clear DNS cache on client browsers and workstations.

clear-client-and-browser-dns-cache.txt

When changing DNS, host entries, routes etc. Or when testing vpn leaks, etc.
Also needed when migrating servers


Windows: Press Win + R and run cmd. Execute command ipconfig /flushdns.
MacOS: Open Terminal and execute command sudo killall -HUP mDNSResponder.

Ubuntu: Open Terminal and execute command sudo service network-manager restart.

You may also need to clear DNS cache in your browser.


Brave-browser: Visit brave://net-internals/#dns
To clear brave/brave-browser DNS cache:
Click button "Clear host cache"

Chrome: Visit chrome://net-internals/#dns. 
Click Clear host cache.

Firefox: Open Firefox and press Ctrl + Shift + Delete. 
Select Time range to Everything and check only Cache. 
Finally, click Clear Now.

Partly taken from:
https://docs.gl-inet.com/en/3/app/vpn_policies/#clear-dns-cache