I would like to update the list of IP's/ ranges that are blocked in my firewall. For example, I currently drop all traffic that come from the ranges below.
This is not a question about TLD's. What I'm looking for are candidate IP ADDRESS ranges to block in my firewall- similar to what I've posted below. I'd rather err on the side of too secure and have to remove entries as needed. Looking to paint broad strokes here. We don't do business in CHINA/ RUSSIA- so would be happy to block IP ADDRESS RANGES used by these countries. With the increasing incidence of malware/viruses/ hacking and spam-- I'm looking to minimize our exposure as much as possible. If anyone follows a similar practice, I'd like to know what ranges you block in your perimeter firewall(s). TIA! mw