You can lock directory with a password by using cPanel "Password Protected Directories" option.1. Log into your cPanel account.2. In the "Security" section, click on "IP Blocker" Icon. 3. Under "Add an IP or Range" you should enter the IP Address you wish to block.4. Click on the "Add" button.Here is Example:Single IP Address: 192.168.0.1Range: 192.168.0.1-192.168.0.40Implied Range: 192.168.0.1-40CIDR Format: 192.168.0.1/32Implies 10.*.*.* -- 192.