Blocking IP address in cpanel
1. Login to cPanel.
2. Select "IP Address Deny Manager" under "Security".
3. Enter the IP address or range in the IP Address or Domain text box. You can enter IP addresses in any of the following formats:
Single IP address (for example, 10.5.3.333).
Range (for example, 10.5.3.3-10.5.3.40).
Implied range (for example, 10.5.3.3-40).
CIDR format (for example, 10.5.3.3/32).
Implied IP address (for example, 10.).
4. You can view the blocked IPs as below.
5. To remove an IP address from the list of blocked IP addresses, perform the following steps:
Click the red X icon in the Delete column for the appropriate IP address.
Click Remove IP.