greyshirts NoRoot Firewall for Android Best Settings *

 Hello,

I have used many firewalls for Android devices and I think this is one of the best. 

Free, Simple, Useful

I will show you how to use this firewall;

Type "greyshirts noroot firewall or  noroot firewall" into the search engine of your web browser and download it.

You will most likely have downloaded version 4.0.2.

When you open the application, you will see a notification screen. Do not click the start button and check the always open box.

Go to the applications tab and mark all the applications in the empty boxes with a red cross.

Then mark the application you want to allow internet connection with a green tick. (wifi and mobile)

- Most of them are unnecessary (services etc.) just use popular applications. Block applications you do not know for your security. (Spy, telemetry etc.)

Note: Noroot firewall green tick 

Warning: Do not leave an empty box.

Then you can go to the first tab and click start.

It will ask you whether to allow the VPN connection and accept other notifications. OK or allow and confirm. You can check if the VPN icon is active at the top of your device. It should always be open.

If you want, you can use global filters, but I don't think it is very useful except for exceptions.

And here we come to the most important part. Go to the custom dns settings on your device. You can write any dns. For example, type dns.adguard.com and go to the firewall application and a warning called "System" will come up. And Accept. Go to the 2nd tab. Accept and close DNS from your device's settings. (not automatic)

When you use the app daily, it may give you a "System" warning again. Press the reject button and do not touch it in the apps tab. (It may say uninstalled) and make sure the main System is marked green.

I use the app in Turkish.

Yes, that's it