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Here are some examples what can be done with such a GeoIP-filter:
Prevent malware on your local systems to communicate with their command and control (C&C) servers, which often are located in a certain countries.
Only allow remote administration from your own country.
Create firewall rules for limit new connection attempts for countries you usually don’t communicate that much with. This could help to prevent from getting your mail servers flooded with spam from those countries.
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The IPFire team has announced the release of IPFire 2.17 Core Update 90. The new release offers a number of security enhancements, including the use of GeoIP filtering and the disabling of vulnerable security protocols. The project's kernel and system services have also been updated and patched against known vulnerabilities. "Attackers originate from all sorts of places in the world. Often huge networks of bots scan the entire Internet for services that are publicly accessible and possible to exploit. With GeoIP-based blocking it is possible to mitigate many of those scans to take off the load of the firewall engine and to secure those publicly accessible services. With GeoIP-based firewall rules it is possible to filter incoming and outgoing traffic related on their source or desired destination countries.
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You can easily deploy many variations of it, such as a firewall, a proxy server or a VPN gateway. The modular design ensures that it runs exactly what you've configured it for and nothing more. Everything is simple to manage and update through the package manager, making maintenance a breeze.
