Once your Synology is accessible from the internet, some people will try to hack your password and access your NAS. Synology offers a service to block people’s IP address when they fail to log in after a specified number of attempts. This service will prevent them from trying again from the same IP.
Here is how you set up this functionality:
Go to the control panel on your synology:
Under “Connectivity” click on “Security”:
Click on the section “Auto Block” , click on “Enable autoblock” and set the number of login attempts and time inteval. For example, the users can try to login 5 times within 5 minutes before the synology blocks their access.
If any of your real users gets blocked out by the system, you can change settings by clicking on “Allow/Block list” button:
Click on “Block list”, select the user you want to remove and click on “Remove” button.