Table of Contents

Firewall - DNS-based filtering
- GeoIP Blocking
- MaxMind

Firewall - DNS-based filtering

DNS-based filtering

GeoIP Blocking

GeoIP Blocking reduces the number of computers that can attack.

WARNING: GeoIP Blocking is not perfect, as attackers spoof IP addresses to look like they are coming from safer countries.

MaxMind

Consider the MaxMind GeoIP database.

Registration is needed to create a license key; which is free.

https://download.maxmind.com/app/geoip_download?edition_id=GeoLite2-Country-CSV&license_key=My_License_Key&sufix=zip

NOTE: This downloads the list and allows you to deny any traffic from those regions.