![]() ![]() Furthermore, Infoblox’s Secure DNS offering has DNS Firewall capabilities that prevent end-users from communicating with fast-flux botnet command and control (C&C) or domains that have poor reputations from Threat Intelligence Data Exchange (TIDE). Global Server Load-Balancing (GSLB) systems, like Infoblox DNS Traffic Control, have the ability to act on GeoIP information. These geoblocking capabilities are often built into firewalls, IPSs, load balancers and other perimeter defenses. The Internet Society (ISOC) has also opposed commercial and geopolicital practices of content blocking. There are groups who feel that geoblocking opposes the free and open ideals of the Internet and favor bans on the practices of geoblocking. In recent years, there has been significant geopolitical emphasis on geoblocking practices, especially in the European Union (EU). Governments, utilities or enterprise organizations may want to block attacks from geographies that aim to do them harm. Netflix also limits subscribers using VPNs to get around their geofencing policies. ![]() An example of this is evident in how Netflix permits or blocks connections based on the subscriber’s country-of-origin based on their source IP address. ![]() If the location of the device could be accurately ascertained, then geofencing (i.e., establishing a virtual perimeter for a physical geography) could be performed to further permit or restrict connections. Geoblocking can also be augmented by using the origin device’s time zone to restrict connections. This is also a technique used to restrict gambling to only those countries/states that permit it within their borders. This is becoming a more common practice given the nation-state attacks and geopolitical influences on the Internet in recent years. Geoblocking is the practice of preventing connections from public IP addresses located in specific geographies. If the physical location of a device and its user can be accurately determined, then based on this information, connections can be permitted or restricted. If the IP address is a public address, then it might be possible to determine the Regional Internet Registry (RIR), continent, and maybe country if you had additional information from the Internet provider. If the IP address is a private (RFC 1918) address, then there is no way of determining the true physical location of the associated device based on the address alone. For network-connected devices, their location in this ethereal world is based on their IP address. However, it can be surprising to be presented a web page in an unfamiliar language.ĭetermining the location of a system on the Internet (without GPS or RF signals) is more complicated. For example, a web browser application could determine your country of origin and display a requested web page in the local language. Geolocation also helps an application service determine the location of the client and provide customized information. Geolocation has its benefits: for example, knowing where you are and preventing you from getting lost as well as for navigation by plotting the fastest course to your destination. It is always fun to see your GPS latitude and longitude coordinates using a mobile phone app like GPS Essentials. Today, most mobile phones have built-in GPS receivers but actually perform Assisted GPS (AGPS), which uses other RF information, like Wi-Fi info, to improve location determination when the GPS process alone takes too long or is not available. This can be accomplished by using radio frequency (RF) signals from a mobile operator’s base stations to triangulate a subscriber’s approximate physical location. Geolocation is the process of accurately determining the physical location of an object on the surface of our planet. In this article, we explore Internet geolocation using IPv6, available tools, and discuss the technical challenges. When it comes to geolocation, accuracy is paramount, and Internet-connected device location can vary between IPv4 and IPv6. We could use this information to make security decisions to allow or block connections. We are also curious about where within the global Internet the person we are communicating is connected. Human nature makes us curious to know where we are located within the World Wide Web. ![]()
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