How to protect websites against DDoS attacks in Plesk for Windows Server?
Use the built-in IIS feature Dynamic IP Address Restrictions to block access for IP addresses that exceed the specified number of requests to websites hosted in Plesk.
In Plesk, this feature is capable to set:
- Dynamic IP Address Restrictions to Deny IP addresses based on the number of concurrent requests from a unique IP address
- Deny IP addresses based on the number of requests over a period of time
Note: Values in the instructions below are given as an example. Adjust them according to your needs.