Can You Block an IP Address?

You can block IP addresses on your computer if you want to deny access to specific websites and services. Some websites use more than one IP address. For example, Facebook has multiple IP addresses, so you’ll need to block them all. Disabling individual IP addresses may be helpful if Facebook isn’t working for you. You may want to block an IP address to prevent yourself or other users from accessing specific websites. You should also block malicious IP addresses to protect your computer from hackers and bots.

How Do I Block an IP Address From My Computer?

You can block an IP address on a Windows PC using Windows Firewall:

How to Block an IP Address on Mac

The easiest way to block IP addresses on a Mac is to block them for your entire network via your router. If you want to block an IP address on just your Mac, use the Terminal to create a new rule in your PacketFilter Configuration file: To block a range of addresses, replace any with an IP address. For example: